BatteryManagementSolutions:
Battery Authentication
Battery Fuel Gauge
Battery Charge Management
Charger Front-End Protection
Lithium-Ion Protection
Solar Charging
Wireless Power
2011www.ti.com/battery
Harvest the power of the world’s energy
2Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Introduction and Contents
Battery Management Systems Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Emerging Power Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Charger Front-End Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Battery Charge Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Single-Cell SolutionsBatteryFuelGauges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16AuthenticationforBatteriesandPeripherals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Multi-Cell SolutionsBatteryFuelGaugesandMonitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Lithium-IonProtection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Wireless Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Receiver-SideSolutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Transmitter-SideSolutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
TI Worldwide Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . (backcover)
TexasInstruments(TI)offerscompletebattery-managementportfoliowithafulllineofhigh-performanceproducts .Theseproductsrangefrombatterychargerstohighly-efficientbatteryfuelgauges .Alsoincludedarepowerprotec-tion,authentication,andalternativechargingsourcessuchassolarandwirelesspower .
TImakesdesigningeasierbyprovid-ingleading-edgesupporttoolssuchastraining,abroadselectionofevalua-tionmodules(EVMs),applicationnotes,comprehensivetechnicaldocumentationandmore .TIalsoofferssamplesandsmallorders(shippedwithin24hoursviaTIauthorizeddistributors)thatwillhelpyouaccelerateyourtime-to-market .
Includedinthisselectionguideyouwillfinddesignfactors,featuredproducts,graphicalrepresentationsofportfoliosandparametrictables .
Formoreinformationaboutbatterymanagementproducts,visitwww.ti.com/battery
my.TI™ AccountRegister Today!
Stay informed on:• New product releases• Design tools• Samples• Evaluation modules• Guides
• System block diagrams
www.ti.com/myTIIt’s easy and quick!
Endapplicationsinwireless,computing,consumerandindustrial/medicalmarketscontinuetoexpandintotheportablespace .TI’sbatterymanagementsolutionshelpaddresssystemprotection,cost-effectivelinearandhighlyefficientswitchmodebatterycharging .Newadvancesinswitch-modechargingincreaseefficiency,thusdecreasingpowerdissipationandpromotingagreenenvironmentbywastinglessenergy .Withbattery-poweredsystemsdemandingincreasedreliability,TIensuresmaximumproductsafetywithchargersthatprotectbatteriesfromovervoltageandover-currentconditions .
DCInputs
USB
RechargeableBattery
Power MUXControl andProtection
Battery ChargeManagement
Wireless Power
Nanopower and Energy Harvesting
ChargerFront-EndProtection
Battery Fuel Gauges
Lithium-Ion Protectionand Authentication
for Batteries
Battery Management Systems Overview
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• Amplifiers and comparators
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3Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Battery Management Systems Overview
Spaceisofutmostimportanceinportableapplications .TIoffersadvancedsolutionsthatincorporateQFNandwafer-levelchip-scalepackagingandfeatureahighdegreeofintegrationtoreducesolutionsize .Inadditiontoreducingboardspace,manyofthesesolutionsprovidelowerpowerdissipa-tionandincreaseoverallefficiency .TIbatterymanagementsolutionssupportawiderangeofbatterychemistriesandcellcounts,frompopularLithium-Ion(Li-Ion)technologiestoindustry-standardnickel-metal-hydrideandlead-acidbatteries .
TIproductssupportapplicationssuchasmobilephones,smartphones,tablets,portableconsumerdevices,portablenavigationdevices,notebookcomput-ersandmanyindustrialandmedicalapplications .TIhasthebattery-man-agementdevicetomatchyourdesign
specifications,wealsooffertheevalua-tionmodules,applicationnotes,samplesanddatasheetsneededtogetyourdesigntomarketfaster .
Design FactorsBattery Chemistry—Eachbatterychemistryhasdifferentoperatingcharac-teristics,suchasdischargeprofilesandself-dischargerate .TIgas-gaugeICsaredevelopedtoaccountforthesediffer-encesandaccuratelydisplayremainingenergyinthebattery .Also,eachbatterychemistryhasuniquerequirementsforitschargealgorithm,whichiscriticalformaximizingitscapacity,cyclelifeandsafety .
Charge-Control Topology—Asimplelineartopologyworkswellinapplicationswithlow-power(e .g .,one-ortwo-cellLi-Ion)batterypacksthatarechargedatlessthan1A .Aswitch-modetopology
isideallysuitedforfastchargingfromUSBportsorforlargebatterypacksthatrequirechargerates>1A .Theswitch-modeconversionminimizesheatgenera-tionduringcharging .Awirelesspowertopologyusessharedmagneticfieldstoprovidethebenefitofcontactlesspowertransfer .Wirelesschargingprovidesanadditionalbattery-chargingoptionforportabledevicesorasareplacementforother5-Vchargingsources .
Input Voltage—Wideinput-voltagerangeoftheICandinputovervoltageprotectionoffermaximumsafetyandallowuseoflow-costunregulatedwalladapters .
Number of Series Cells—Abatterypackisconstructedfromastringofseriesandparallelcells .Eachseriescell,orgroupofparallelcells,requiresprotec-tionfromovercharge,overdischargeandshort-circuitconditions .
Inp
ut P
ow
er
Single-CellMulti-Cell
US
B a
nd/o
r 5-
V A
dap
ter
So
lar
Pan
els
and
Ene
rgy
Har
vest
ers
Ove
r-5-
V A
dap
ter
Wir
eles
s P
ow
er
Purpose• Correctly charge using constant current and voltage• Maximize battery life and capacity• Maintain safe operating range for voltage, current and
temperature
What type of power source is available to recharge your battery pack?• High-Voltage AC Power – The first stage of the battery-
charging circuit will require an isolated power converterto generate a lower-voltage DC rail that is applied to thebattery pack.
• Mid-Voltage DC Power (~12 to 30 VDC) – A switch-modecharger will be the likely charge-control solution. For highercurrents (above 4 A), external power FETs will likely berequired. For currents below 4 A, in many cases a fullyintegrated solution may be possible.
• Low-Voltage DC (e.g., from adapter or USB port) – A low-cost linear charger may be usable for currents below 1 A.Low-voltage switch-mode chargers are recommended forcurrents above 1 A.
If the application requires simultaneous battery chargingand system operation, the charger device should includepower-path control functionality.
Some systems require very accurate capacity reporting—both the percentage of power remaining and the estimatedrun time remaining in hours and minutes. These systemswill benefit from TI’s patented Impedance Track™ technol-ogy, which offers the highest accuracy. For less complexsystems, CEDV fuel gauges may offer simpler, lower-costimplementation.
• Lithium-Ion
• Lead-Acid
• Lithium-Iron-Phosphate
Inputs Battery ChargerBatteries
• SuperCap
• NiMH
• Lithium-Polymer
• NiCd
Battery Management
4Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Emerging Power Applications
Solar Charging
bq24210Single-Cell
SolarCharger
TPS2500USB PowerSwitch with
BoostConverter
Solar Panel
bq24650Charger withInput-Based
Dynamic PowerManagement
LEDDriver
Solar Panel
Photovoltaictechnologieshaveevolvedthatcannowprovidemorecost-effectiveandefficientenergyharvestingfromthesun .Mostsolarharvestingtodayuseshigh-powerinstallationsthatprovidesupplementalACpowertothehomeortocommercialbuildingsandaregener-allytiedtotheutilitygrid .However,muchoftheworldisstillnotyettiedtothegrid,orthegridisunreliable,orbeingtetheredtotheACpowersupplyisjustnotpractical .Intheseapplications,using
thesuntochargeabatterythatsuppliespowertooff-gridapplicationsisamorepracticalsolution .Fortheseapplica-tions,atrade-offbetweencostandPVefficiencyisoftenrequired .Maximizingpowerfromthepanelisbalancedwiththecostandsizeoftheoverallsystem .
Thediagramsbelowillustratetwoexamplesoflow-costsolar-chargerapplicationswherethebatterychargerisintegratedwithsimplecircuitrytomaxi-mizethepowerpointfromthesolar
panelaswellaswithcircuitryforloadregulation .Simplesolarstreetlightsorsolarlanternscanbedevelopedbyadd-ingdevicessuchasLEDdrivers .TheimplementationofaUSBswitchwithaboostconvertercancreateasimplesolarchargerforportabledevices .Otherapplicationscanimplementmotordriv-ersforsolar-poweredfansorwaterpumps .ThesearebutafewoftheoptionsenabledbyTI’snewfamilyofsolar-chargerICs .
5Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Emerging Power Applications
bq76PL536Monitor and
Balancer
Cel
l-B
alan
cing
C
om
po
nent
s
bq76PL536Monitor and
Balancer
Cel
l-B
alan
cing
C
om
po
nent
s
Pro
tect
or
bq76PL536Monitor and
Balancer
TMSx70 orC2000™Battery System
Controller
ISO72xxSafety
Isolation
ISO72xxSafety
Isolation
Cel
l-B
alan
cing
C
om
po
nent
s
bq76PL536Monitor and
Balancer
Cel
l-B
alan
cing
C
om
po
nent
s
Pro
tect
or
Pack Monitor
PrechargeRelay
SafetyDisconnect Relay
SafetyDisconnect
Relay
CAN
SPI™Interface
SPI
V V
A
Load
+
–
Thebattery-managementsystem(BMS)isakeyelementintheoverallHEVarchi-tecture .Anintelligentimplementationwillextendnotonlythebattery’slifetimebutalsothepossiblerangeofavehicleinfullyelectricdrivemode,whichisa
keysellingpointtoendusers .TheBMSmodulesrequirebatterysupervisionandbatterycell-balancingfeatures,oftenconnectedthroughdifferentcommunica-tionpathstoensuresystemredundancy .Built-intemperaturemanagementis
alsoacrucialelementforasystem’slifetimeandsafety .ThecompleteBMSrepresentsahighlysafety-criticalfunc-tion;therefore,reliablecommunicationandaccuratedatameasurementarenecessities .
HEV Battery Management
6Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Emerging Power Applications
AC to DC LoadDrivers
Transmitter Receiver
ControllerController
Power
Rectification
V/ISense
CommunicationRx Solutionsbq51013 (Gen2)bq51011 (Gen2)bq25046 (Gen1)MSP430bq1010 (Gen1)
VoltageConditioning
Tx Controller Solutionsbq500210 (Gen2) bq500110 (Gen1)bq500211 (Gen2)
TIisleadingthenewwireless-powermarketwiththeveryfirstQi-compliantdevices .The81+members,includingTI,oftheWirelessPowerConsortiumaresettingtheinternationalstandardforinter-operablewirelesschargingwiththeQistandard .
ThebqTESLAchipsetenablescustomerstopowertheirelectronicdevicesupto5W,meetingtheQistandard .The
transmitterandreceiversolutionsthatmakeupthebqTESLAchipsetarereadyformassproductiontoday .
ThebqTESLAreceiverfamilyincludesthebq51013andbq51011,whichout-put5Vandprovideclosed-loopcontroltothevia-embeddedcommunicationstechniques .Softwareisalreadypro-grammedintothedevices,sonosoftwareprogrammingisrequired .ThebqTESLA
transmitterfamilyincludesthebq500210andbq500211,whichoperateandcon-troltheQi-compliantwireless-powerfunctionality .
Devicedatasheets,bqTESLAEVMuserguidesandbqTESLAEVMmodulesareavailableat:
www.ti.com/wirelesspower
TPS61202, TPS61222Boost Converter
300 mV to >20 V 4.2 V 1.8 to 3.3 V
Wireless Interfaces
Low-Power RF and ZigBee®
Bluetooth®
Sensor
INA321, INA322,OPA369
Amplifier
TMP102, TMP122Temperature Sensor
Energy Storage(Li-Ion Battery/
Super Capacitor/Thin-Film Battery)
bq24210Battery Charging with Max.
Power-Point Tracking (MPPT)
Energy Harvesting
Solar
Vibration
Thermal
RF Harvesting
+125°
–60°T
>10-Cell Solar Panel Does Not Require Boost
MSP430™,CC430MCU
TPS78233LDO Linear Regulator
Energy Harvesting
Asnewformsofalternative(off-grid)energyarebeingdeveloped,power-managementtechnologiesarerequiredtoharvest,storeandregulatethispower .Energyfromsuchsourcesasphotovol-taicpanels,kinetic(vibration)MEMsandthermoelectricelements(utilizingPeltier,ThompsonorSeebeckeffects)presents
thechallengeofconvertingultra-lowlevelsof“nano”powertomoreusablelevelsandstoringtheenergyforlateruse .TIcontinuestodevelopnewpower-managementICstomeettheseharvest-ingchallenges,includingultra-low-powerdevicessuchasLDOsandhigh-efficiencyboostconvertersandbattery
chargers .Thesepower-managementdevicescomplementTI’sportfoliooflow-powerMCUsandRF,amplifierandsensorICs—providingatotalsolutionforsystemspoweredbynewformsofultra-low-poweralternativeenergy .
Wireless Power (bqTESLA™)
7Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Charger Front-End Protection
FAULT
PGOOD
CE
VBATILIM
VOUT
VSS
VIN
ACAdapter
1 µF1 µF
bq24314
ChargingCircuit
4.2-VLi-IonBattery
Li+ Charger Front-End Protection ICbq24314Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq24314
Chargerfront-endprotectionICsprovideprotectionfrominputovervoltage,inputovercurrentandbatteryovervoltagecon-ditions .Thetri-levelprotectionoffersmaxi-mumsafetywhenchargingahandhelddevice .WithintegratedFET,theprotectionICcomesin2x2-mmand3x4-mmSONpackages .
Key Features•30-Vmaximuminput•Upto1 .5-Ainputcurrent•Thermalshutdown•Enableinput•Providesprotectionforthreevariables:
•Inputovervoltage(rapidresponse<1µs)•User-programmableovercurrent
withcurrentlimiting•Batteryovervoltage
Applications•Mobilephonesandsmart
phones•Portablenavigationdevices•MP3Players•Low-powerhandhelddevices•Bluetooth®headsets
Selection Guide
DeviceVIN Max
(V)OVP (V) OCP
Battery OVP (V)
LDO Output (V)
Max Operating Current (µA) Package(s) EVM Comments Price*
bq24300/4/5 30 10.5 Fixed 300 mA 4.35 5.5/4.5/5.0 400/500/500 8-QFN/SON Reverse polarity protection 0.55bq24308 30 6.3 Fixed 700 mA or Prog. <1.5 A 4.35 5 500 8-QFN/SON Reverse polarity protection 0.55bq24312 30 5.85 Prog. <1.5 A 4.35 — 500 8/12-QFN/SON Fault indication 0.48bq24314/A 30 5.85 Prog. <1.5 A 4.35 — 600 8/12-QFN/SON Fault indication 0.48bq24315 30 5.85 Prog. <1.5 A 4.35 5.5 600 8-QFN/SON Fault indication 0.48bq24316 30 6.8 Prog. <1.5 A 4.35 — 600 8/12-QFN/SON Fault indication 0.48bq24380 30 6.3 No OCP 4.35 5.5 250 8-QFN/SON Fault indication 0.55bq24381 30 7.1 No OCP 4.35 5 300 8-QFN/SON Fault indication 0.55bq24382 30 10.5 No OCP 4.35 5 300 8-QFN/SON Fault indication 0.55bq24350 30 6.17 Fixed 1.2 A 4.35 5.5 500 8-QFN/SON Integrated charge FET 0.65bq24351 30 10.5 Fixed 1.2 A 4.35 6.38 500 8-QFN/SON Integrated charge FET 0.65bq24352 30 7.1 Fixed 1.2 A 4.35 5.5 500 8-QFN/SON Integrated charge FET 0.65
*Suggested resale price in U.S. dollars in quantities of 1,000. New devices are listed in bold red.
8Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Battery Charge Management
Li-Ion Charger with Automatic USB Detectionbq24050Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq24050
USB Port
1 µF1 µF
1 kΩ
1.5 kΩ
2 kΩ
Disconnect after Detection
Or
+
BatteryPack
1
2
3
4
5
10
9
8
7
6
System Load
CHG
bq24050/2IN
ISET
VSS
PRETERM
D+ D–
ISET2
TS
OUT
VBUSGND
D+D–
DC+
GND
Adapter
VDD
TTDMISET/100/500 mAGNDD+D–
Host
Thebq24050canintelligentlydetectifapowersourceisadedicatedpoweradapteroraUSBport .ThisfeatureallowsasystemtoimmediatelystartfastchargingifaUSBtransceiverisnotavail-ablebecauseofadischargedbattery .
1-A, Single-Input, Single-Cell LiFePO4 Linear Battery Charger with 50-mA LDObq25070Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq25070
Key Features•Single-cellLiFePO4chargingalgorithm•3 .75-to10 .2-VVIN(10 .5-VOVP)with
30-Vinputrating(max)•Upto1-Achargecurrent•Integrated4 .9Vat50mALDOlinear
regulator•Singleoutputallowssimultaneousbat-
terychargingandpoweringofsystem•Programmablechargecurrentthrough
singleinputinterface(CTRL)•SingleUSBportorAC-adapterinput
source•Thermalregulationandprotection•Soft-startfeature•BatteryNTCmonitoring•Charging-statusindication•Small2×3-mm10-pinSONpackage
Applications•Low-powerhandhelddevices•Mobilephones•Multimediaplayers
IN
LDO
OUTVBUSGND
D+D–
GND
Portable-Device Host
bq25070
IMON
PWRPD
CHG
VDD
VCHG DET
USB DET
VUSBIN
BAT
ACDET
TEMPPACK+
PACK–
CTRL
GPIO
STATUS
VGPIO
TS
C10.1 µF
R11 kΩ
USB or AC Adapter
R2100 kΩ
C21 µF
R51.5 kΩC3
0.1 µF
R41.5 kΩ
R31.5 kΩ
9Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Battery Charge Management
SW
SYS
TSVDRVPGND
PMIDU
USB
SDA
SCL
INT
BOOT
I2C
VSYS
PMIDI
IN
SystemLoad
TEMP
PACK+
+–
PACK–
D+
D–
VBUSD+D–
GND
Adapterbq24160
HOST
BAT
BGATE
Dual-Input, Switch-Mode Charger with Power Path Management and I2C Controlbq24160, bq24161, bq24162
Thebq24160/1/2arehighlyintegratedsingle-cellLi-Ionbatterychargerandsystempower-pathmanagementdevicestargetedforspace-limited,portableapplicationswithhigh-capacitybatteries .Thesingle-cellchargerhasdualinputswhichallowoperationfromeitheraUSBportorhigher-powerinputsupply(i .e .ACadapterorwirelesscharginginput)fora
versatilesolution .ThetwoinputsarefullyisolatedfromeachotherandareeasilyselectableusingtheI2Cinterface .
Key Features•High-efficiencyswitchingmodecharger
withseparatepowerpathandcontrol•Startupsystemfromdeeplydischarged
batteryornobattery
Single-Cell Charger Controllers Selection Guide
DeviceNumber of Cells VIN Type
VIN Abs Max (V)
VIN OVP(V)
Charge Current
(A)
Charge Voltage
(V)Control
Interface TopologyInternal
FETPrimary Charge
TerminationCharge Timer
Temp Monitor WCSP EVM Comments Price*
Single-Cell Adapter/USB-Powered Chargers
bq24160 1 Adapter and USB 20 10.5/6.5 (USB) 2.5 3.5 to 4.4 I2C Switching Yes Host-controlled Yes Yes 24
JEITA, D+/D– detect 3.00
bq24161 1 Adapter and USB 20 10.5/6.5 (USB) 2.5 3.5 to 4.4 I2C Switching Yes Host-controlled Yes Yes 24 USB selection pin 3.00
bq24162 1 Adapter and USB 20 6.5 2.5 3.5 to 4.4 I2C Switching Yes Host-controlled No No 24
JEITA, USB selection pin 3.00
*Suggested resale price in U.S. dollars in quantities of 1,000. Preview devices are bold blue.
•VINbaseddynamicpowermanagement•SupportsUSB2 .0andUSB3 .0charger
applications•AutomaticadapterdetectionforUSB
inputbasedonD+/D–(bq24160)•Highlevelofintegration•Synchronousfixed-frequency1 .5-MHz
PWMconverter•20-Vinputrating,with10 .5Vovervolt-
ageprotection•Integratedpowerpathanddriverforan
externalPMOS•Integratedinputcurrentsensingand
limiting(±5%)•IntegratedFETsforupto2 .5-Acharge
rate•Upto2 .5AfromINinput•Upto1 .5AfromUSBinput•Safeandaccuratebatterymanagement
functions•BC1 .2compliant•1%batteryvoltageregulationaccuracy•5%chargecurrentaccuracy•Userprogrammablemaximuminput
currentlimit•Thermalregulationprotection•I2Cinterface(1 .8V,400kHz)•Controlchargeparameters,timers,
VINDPMthreshold•2 .8x2 .8-mmWCSPand4x4-mm
QFNpackages
Applications•Handheldproducts•Portablemediaplayers•Portableequipment•Netbookandportableinternetdevices
10Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Battery Charge Management
3.3 µH
Adapter
VBAT
VREF
VREF
10 mΩ
Q3
RT103AT
D2
D1
VBAT
Q5
VREF
PVCCACN PVCC
bq24170
SW
SW
BTST
REGN
PGND
PGND
ACP
ISET
VREF
CMSRC
TTC SRN
OVPSET
TS
SRP
AGND
STAT CELL
BATDRV
ACDRV
AVCC
ACSET
Switch-Mode Li-Ion and Li-Polymer Stand-Alone Battery Chargerbq24170Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq24170
Thebq24170isahighlyintegratedstand-aloneLi-IonorLi-Polymerswitch-modebatterychargerwithtwointegratedn-channelpowerMOSFETs .Itoffersaconstant-frequencysynchronousPWMcontrollerwithhighlyaccurateregulationofinputcurrent,chargecurrentandvolt-age .Itcloselymonitorsthebattery-packtemperaturetoallowchargingonlyinapresettemperaturewindow .Italsopro-videsbatterydetection,preconditioning,chargeterminationandcharge-statusmonitoring .
Key Features•1 .6-MHzsynchronousswitch-mode
chargerwith4-Aintegratedn-channelMOSFETs
•Upto94%efficiency•4 .5-Vto17-Vinputoperatingrange•Batterychargevoltage:1,2or3cells
with4 .2Vpercell
Applications•TabletPCs•Netbooksandultra-mobilecomputers•Portabledata-captureterminals•Portableprinters•Medical-diagnosticsequipment•Battery-baychargers•Batteryback-upsystems
Chargers with Internal FETs Selection Guide
DeviceNumber of Cells
Control Topology
Host or Stand Alone
Integrated Power FET
Charge Current
(A)
VIN Max (V)
Primary Charge Termination
Method1Safety Timer
Temp Monitor
Packaging: QFN/MLP EVM Comments Price*
Multi-Cell Switch-Mode Stand-Alone Battery Chargers with Internal FETs (Converters) — Lithium-Ionbq24170 1 to 3 Switching Stand Alone Yes 4.0 20 Min current Yes Yes 24 1.80bq24171 1 to 3 Switching Stand Alone Yes 4.0 20 Min current Yes Yes 24 Supports JEITA 1.80bq24172 1 to 3 Switching Stand Alone Yes 4.0 20 Min current Yes Yes 24 Supports adjustable charge voltage 1.80bq24133 1 to 3 Switching Stand Alone Yes 2.5 20 Min current Yes Yes 24 Supports 2.5-A charge current 1.80
bq24130 1 to 3 Switching Host Yes 4.0 20 Min current/Host controlled — Yes 24
bq24100 1 Switching Stand Alone Yes 2.0 20 Min current Yes Yes 20 On/Off status pin; bq24120 offers enhanced EMI performance 2.00
bq24108 1 Switching Stand Alone Yes 2.0 20 Min current Yes Yes 20 Blinking status pin; bq24120 offers enhanced EMI performance 2.00
bq24103A 1 or 2 Switching Stand Alone Yes 2.0 20 Min current/Host controlled Yes Yes 20 bq24123 offers enhanced EMI performance 2.00
bq24113A 1 or 2 Switching Host Yes 2.0 20 Min current/Host controlled Yes Yes 20 bq24123 offers enhanced EMI performance 2.00
bq24105† 1 to 3 Switching Host Yes 2.0 20 Min current/Host controlled Yes Yes 20 bq24125 offers enhanced EMI performance 3.50
bq24115 1 to 3 Switching Host Yes 2.0 20 Min current/ Host controlle Yes Yes 20 bq24125 offers enhanced EMI performance 3.50
1Host controlled = system processor must terminate charging. †Devices qualified for Automotive applications are available. Different pricing may apply. New devices are listed in bold red.*Suggested resale price in U.S. dollars in quantities of 1,000.
11Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Battery Charge Management
Q5
Q4
ToSystem
LoadQ1 Q2
Q3
RAC
To PackThermistor
Adapter
Adapter
BATDRV
REGN
BTST
HIDRV
PH
LODRV
GND
SRP
SRN
VFB
ACN
ACPACDRVVREF
CE
ISET1
ISET2
ACSET
TS
TTC
STAT1
STAT2
PG
VCCbq24610
ToBatteryPackRSRL: 6.8 µH
Stand-Alone Synchronous Switch-Mode Li-Ion or Li-Polymer Battery Chargerbq24610Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq24610
Thebq24610isahighlyintegratedLi-IonorLi-Polymerswitch-modebatterycharger .Itoffersaconstant-frequencysynchronousswitchingPWMcontrollerwithhighlyaccurateregulationofchargecurrentandvoltage .Italsoprovideschargepreconditioning,termination,adaptercurrentregulationandcharge-statusmonitoring .
Key Features•600-kHzNMOS/NMOSsynchronous
buckconverter•Stand-alonechargersupportforLi-Ion
orLi-Polymerbattery•Supportsuptosixbatterycells
(bq24610)andhasaninputoperatingrangeof5-to28-VVCC
•Upto10-Achargecurrentandadaptercurrent
Applications•Netbooks,mobileInternetdevicesand
ultra-mobilePCs•PDAs•Handheldterminals•Industrialandmedicalequipment
Multi-Cell Charger Controllers Selection Guide
DeviceNumber of
Cells Control TopologyIntegrated Power FET
VIN Max(V)
Primary Charge Termination Method
Safety Timer Temp Monitor
Packaging:QFN/MLP EVM Comments Price*
Multi-Cell Switch-Mode Stand-Alone Battery Chargers with External FETs (Controllers) — Lithium-Ion (except where noted)bq24600 1 to 6 Switching No 32 Min current Yes Yes 16/24 1200 kHz 2.50bq24610 1 to 6 Switching No 32 Min current Yes Yes 16/24 600 kHz 2.90bq24616 1 to 6 Switching No 32 Min current Yes Yes 16/24 JEITA, 600 kHz 2.90bq24617 1 to 5 Switching No 26 Min current Yes Yes — 600 kHz 2.90bq24618 1 to 6 Switching No 32 Min current Yes Yes 16/24 Supports 4.7 VIN 2.90bq24620 1 to 7 Switching No 32 Min current Yes No 16/24 LiFePO4 2.90bq24630 1 to 7 Switching No 32 Min current Yes No 16/24 LiFePO4, system power selector 2.90bq24640 1 to 9 Switching No 33 SuperCap-specific No Yes 16 Supports SuperCap 3.65
bq24650 1 to 6 Switching No 33 Min current Yes Yes 16 Solar charger for Li-Ion/polymer, LiFePO4, lead-acid chemistries 2.85
*Suggested resale price in U.S. dollars in quantities of 1,000. New devices are listed in bold red.
12Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Battery Charge Management
Selection Guide (Device parameters continued on next page)
DeviceNumber of
Cells VIN TypeVIN Max
Operating (V)VIN Absolute
Max (V)VIN OVP
(V)Charge
Current (A)Charge
Voltage (V)Control
Interface TopologyIntegrated Power FET
Multi-Chemistry (Li-Ion and NiCd/NiMH)
bq24030 1 Adapter/USB 16 18 6.4 2 4.2 Stand Alone Linear Yes
bq24031 1 Adapter/USB 16 18 6.4 2 4.1 Stand Alone Linear Yes
bq24032A 1 Adapter/USB 16 18 6.4 2 4.2 Stand Alone Linear Yes
bq24035 1 Adapter/USB 16 18 6.4 2 4.2 Stand Alone Linear Yes
bq24038 1 Adapter/USB 16 18 6.4 2 4.24/4.36 Stand Alone Linear Yes
bq24040 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24041 1 Adapter/USB 6.45 30 7.1 0.800 4.2 Stand Alone Linear Yes
bq24050 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24052 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24055 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24072 1 Adapter/USB 6.4 30 6.6 1.5 4.3 Stand Alone Linear Yes
bq24072T 1 Adapter/USB 6.4 28 6.6 1.5 4.2 Stand Alone Linear Yes
bq24073 1 Adapter/USB 6.4 28 6.6 1.5 4.2 Stand Alone Linear Yes
bq24074 1 Adapter/USB 10.2 28 10.5 1.5 4.2 Stand Alone Linear Yes
bq24075T 1 Adapter/USB 6.4 28 6.6 1.5 4.2 Stand Alone Linear Yes
bq24079T 1 Adapter/USB 6.4 28 6.6 1.5 4.1 Stand Alone Linear Yes
bq24090 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq24091 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq24092 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq24093 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq25040 1 Adapter/USB 6.7 30 6.9 1.1 4.2 Stand Alone Linear Yes
bq25050 1 Adapter/USB 6 20 6.5 1.25 3.5 to 4.4 I2C Switching Yes
bq25060 1 Adapter/USB 10.2 30 10.5 1 4.2 Stand Alone Linear Yes
bq24160 1 Adapter & USB 18 20 10.5/6.5 (USB) 2.5 3.5 to 4.4 I2C Switching Yes
bq24161 1 Adapter & USB 18 20 10.5/6.5 (USB) 2.5 3.5 to 4.4 I2C Switching Yes
bq24162 1 Adapter & USB 18 20 6.5 2.5 3.5 to 4.4 I2C Switching Yes
bq24153A 1 Adapter/USB 6 20 6.5 1.25 3.5 to 4.4 I2C Switching Yes
bq24156A 1 Adapter/USB 9 20 9.8 1.5 3.5 to 4.4 I2C Switching Yes
bq24180 1 Adapter/USB 16 20 16.5 1.5 3.5 to 4.4 I2C Switching Yes
bq24185 1 Adapter/USB 16 20 16.5 1.5 3.5 to 4.4 I2C Switching Yes
bq24170 1 to 3 Adapter/USB 17 20 Progammable 4 4.2 Stand Alone Switching Yes
bq24171 1 to 3 Adapter/USB 17 20 Progammable 4 Adj Stand Alone Switching Yes
bq24172 1 to 3 Adapter/USB 17 20 Progammable 4 Adj Stand Alone Switching Yes
bq24130 1 to 3 Adapter/USB 18 20 Host Controlled 4 Adj I2C Switching Yes
bq24133 1 to 3 Adapter/USB 17 20 Progammable 2.5 Adj Stand Alone Switching Yes
bq24600 1 to 6 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24610 1 to 6 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24616 1 to 6 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24617 1 to 5 Adapter 24 33 32 10 (Ext) Adj Stand Alone Switching No
bq24618 1 to 6 Adapter/USB 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24707A 1 to 4 Adapter 24 30 Progammable 8 Adj SMBus Switching No
bq24725A 2 to 4 Adapter 24 30 Progammable 8 Adj SMBus Switching No
bq24735 1 to 4 Adapter 24 30 Progammable 8 Adj SMBus Switching No
New devices are listed in bold red. Preview devices are bold blue.
13Battery Management Solutions Guide TexasInstruments2011
Selection Guide (Device parameters continued on next page)
DeviceNumber of
Cells VIN TypeVIN Max
Operating (V)VIN Absolute
Max (V)VIN OVP
(V)Charge
Current (A)Charge
Voltage (V)Control
Interface TopologyIntegrated Power FET
Multi-Chemistry (Li-Ion and NiCd/NiMH)
bq24030 1 Adapter/USB 16 18 6.4 2 4.2 Stand Alone Linear Yes
bq24031 1 Adapter/USB 16 18 6.4 2 4.1 Stand Alone Linear Yes
bq24032A 1 Adapter/USB 16 18 6.4 2 4.2 Stand Alone Linear Yes
bq24035 1 Adapter/USB 16 18 6.4 2 4.2 Stand Alone Linear Yes
bq24038 1 Adapter/USB 16 18 6.4 2 4.24/4.36 Stand Alone Linear Yes
bq24040 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24041 1 Adapter/USB 6.45 30 7.1 0.800 4.2 Stand Alone Linear Yes
bq24050 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24052 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24055 1 Adapter/USB 6.45 30 6.6 0.800 4.2 Stand Alone Linear Yes
bq24072 1 Adapter/USB 6.4 30 6.6 1.5 4.3 Stand Alone Linear Yes
bq24072T 1 Adapter/USB 6.4 28 6.6 1.5 4.2 Stand Alone Linear Yes
bq24073 1 Adapter/USB 6.4 28 6.6 1.5 4.2 Stand Alone Linear Yes
bq24074 1 Adapter/USB 10.2 28 10.5 1.5 4.2 Stand Alone Linear Yes
bq24075T 1 Adapter/USB 6.4 28 6.6 1.5 4.2 Stand Alone Linear Yes
bq24079T 1 Adapter/USB 6.4 28 6.6 1.5 4.1 Stand Alone Linear Yes
bq24090 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq24091 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq24092 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq24093 1 Adapter/USB 6.45 7 6.6 0.800 4.2 Stand Alone Linear Yes
bq25040 1 Adapter/USB 6.7 30 6.9 1.1 4.2 Stand Alone Linear Yes
bq25050 1 Adapter/USB 6 20 6.5 1.25 3.5 to 4.4 I2C Switching Yes
bq25060 1 Adapter/USB 10.2 30 10.5 1 4.2 Stand Alone Linear Yes
bq24160 1 Adapter & USB 18 20 10.5/6.5 (USB) 2.5 3.5 to 4.4 I2C Switching Yes
bq24161 1 Adapter & USB 18 20 10.5/6.5 (USB) 2.5 3.5 to 4.4 I2C Switching Yes
bq24162 1 Adapter & USB 18 20 6.5 2.5 3.5 to 4.4 I2C Switching Yes
bq24153A 1 Adapter/USB 6 20 6.5 1.25 3.5 to 4.4 I2C Switching Yes
bq24156A 1 Adapter/USB 9 20 9.8 1.5 3.5 to 4.4 I2C Switching Yes
bq24180 1 Adapter/USB 16 20 16.5 1.5 3.5 to 4.4 I2C Switching Yes
bq24185 1 Adapter/USB 16 20 16.5 1.5 3.5 to 4.4 I2C Switching Yes
bq24170 1 to 3 Adapter/USB 17 20 Progammable 4 4.2 Stand Alone Switching Yes
bq24171 1 to 3 Adapter/USB 17 20 Progammable 4 Adj Stand Alone Switching Yes
bq24172 1 to 3 Adapter/USB 17 20 Progammable 4 Adj Stand Alone Switching Yes
bq24130 1 to 3 Adapter/USB 18 20 Host Controlled 4 Adj I2C Switching Yes
bq24133 1 to 3 Adapter/USB 17 20 Progammable 2.5 Adj Stand Alone Switching Yes
bq24600 1 to 6 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24610 1 to 6 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24616 1 to 6 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24617 1 to 5 Adapter 24 33 32 10 (Ext) Adj Stand Alone Switching No
bq24618 1 to 6 Adapter/USB 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24707A 1 to 4 Adapter 24 30 Progammable 8 Adj SMBus Switching No
bq24725A 2 to 4 Adapter 24 30 Progammable 8 Adj SMBus Switching No
bq24735 1 to 4 Adapter 24 30 Progammable 8 Adj SMBus Switching No
New devices are listed in bold red. Preview devices are bold blue.
Battery Management Solutions
Battery Charge Management
(Device parameters continued from previous page)
DevicePrimry Charge
TerminationCharge Timer
Temperature Monitor
Packaging
EVM Comments Price*WCS
P
QFN/
MLP
MSO
PTS
SOP
SOIC
DIP
Multi-Chemistry (Li-Ion and NiCd/NiMH)
bq24030 Min Current Yes Yes 20 Dynamic Power-Path Management powers the system and charges battery. Regulated 6-V output for AC input condition 1.80
bq24031 Min Current Yes Yes 20 Dynamic Power-Path Management powers the system and charges battery. Regulated 6-V output for AC input condition 1.80
bq24032A Min Current Yes Yes 20 Dynamic Power-Path Management powers the system and charges battery. Regulated 4.4-V output for AC input condition 1.80
bq24035 Min Current Yes Yes 20 Dynamic Power-Path Management powers the system and charges battery. Cutoff at 6 V 1.80
bq24038 Min Current Yes Yes 20 Dynamic Power-Path Management powers the system and charges battery. Regulated 4.4-V output for AC input condition 1.80
bq24040 Programmable Yes Yes 10 0.90
bq24041 C/10 Yes Yes 10 0.90
bq24050 Min Current Yes Yes 10 JEITA charging 0.99
bq24052 Min Current Yes Yes 10 JEITA, 100K NTC 0.99
bq24055 Min Current Yes Yes 12 JEITA, PG pin 0.99
bq24072 Min Current Yes Yes 16 VOUT tracks VBAT, VIN_DPPM 1.20
bq24072T Min Current Yes Yes 16 VOUT tracks VBAT, VIN_DPPM 1.20
bq24073 Min Current Yes Yes 16 VIN_DPPM 1.20
bq24074 Programmable Yes Yes 16 VIN_DPPM 1.20
bq24075T Min Current Yes Yes 16 SYSOFF pin disconnects battery, VIN_DPPM, powers system while charging battery 1.20
bq24079T Min Current Yes Yes 16 SYSOFF pin disconnects battery, VIN_DPPM, powers system while charging battery 1.20
bq24090 Min Current Yes Yes 10 10K NTC 0.70
bq24091 Min Current Yes Yes 10 100K NTC 0.70
bq24092 Min Current Yes Yes 10 JEITA, 10K NTC 0.70
bq24093 Min Current Yes Yes 10 JEITA, 100K NTC 0.70
bq25040 Min Current No Yes 10 USB compliant with 50-mA integrated LDO 1.20
bq25050 Programmable Yes No 20 USB OTG supported with boost 1.20
bq25060 Min Current No Yes 10 USB compliant with 50-mA integrated LDO 1.20
bq24160 Host Controlled Yes Yes 24 JEITA, D+/D– detect, 3.00
bq24161 Host Controlled Yes Yes 24 USB selection pin 3.00
bq24162 Host Controlled No No 24 JEITA, USB selection pin 3.00
bq24153A Host Controlled Yes No 20 USB OTG supported with boost 2.00
bq24156A Host Controlled Yes No 20 2.00
bq24180 Host Controlled Yes Yes 25 Accessory power output 2.20
bq24185 Host Controlled Yes Yes 25 USB OTG supported with boost 2.30
bq24170 Min Current Yes Yes 24 1.80
bq24171 Min Current Yes Yes 24 JEITA 1.80
bq24172 Min Current Yes Yes 24 Adjustable charge voltage 1.80
bq24130 Host Controlled No Yes 20 2.30
bq24133 Min Current Yes Yes 24 1.75
bq24600 Min Current Yes Yes 16 1200 kHz 2.50
bq24610 Min Current Yes Yes 24 2.90
bq24616 Min Current Yes Yes 24 JEITA 2.90
bq24617 Min Current Yes Yes 24 600 kHz 2.90
bq24618 Programmable Yes Yes 24 USB VIN and adapter 2.90
bq24707A SMBus Yes No 20 Programmable switching frequency 2.90
bq24725A SMBus Yes No 20 Programmable switching frequency, enhanced safety, battery learn 2.90
bq24735 SMBus Yes No 20 Intel™ CPU Turbo Mode support 3.00
New devices are listed in bold red. Preview devices are bold blue.*Suggested resale price in U.S. dollars in quantities of 1,000.
14Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Battery Charge Management
Selection Guide (Device parameters continued on next page)
DeviceNumber of
Cells VIN TypeVIN Max
Operating (V)VIN Absolute
Max (V)VIN OVP
(V)Charge
Current (A)Charge
Voltage (V)Control
Interface TopologyIntegrated Power FET
Solar/Energy Harvesting (Li-Ion)bq24210 1 Adapter/USB 18 20 7.7 0.800 4.2 Stand Alone Linear Yes
bq24650 1 to 6 Solar Panel 28 33 32 10 (Ext) Adj Stand Alone Switching No
LiFePO4
bq25070 1 Adapter/USB 28 30 10.5 1 3.5 Stand Alone Linear Yes
bq24620 1 to 7 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24630 1 to 7 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
Super Capbq24640 1 to 9 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
NiCd/NiMH Chemistrybq2002/C/E/F Multiple Adapter 6 7 — >2 6 Stand Alone Current-limited No
bq2004/E/H Multiple Adapter 5.5 7 — >2 5.5 Stand Alone Switching No
bq2005 Multiple Adapter 5.5 7 — >2 5.5 Stand Alone Switching No
bq24400/1 Multiple Adapter 5.5 7 — >2 5.5 Stand Alone Switching No
Lead-Acid Chemistrybq24450 Multiple Adapter 40 40 — >2 — Stand Alone Linear No
UC3909 Multiple Adapter 40 40 — >2 — Stand Alone Switching No
bq2031 Multiple Adapter 5.5 7 — >2 — Stand Alone Switching No
Multi-Chemistry (Li-Ion and NiCd/NiMH)
bq2000/T Multiple — — 7 V — — — Stand Alone Switching Yes
bq24765 2 to 4 — — 30 V — — — Stand Alone Switching Yes
bq24650 1 to 6 Solar Panel 28 33 32 10A (Ext) Adj Stand Alone Switching No
bq24747 2 to 4 — — 30 V — — — Stand Alone Switching No
Wireless Powerbq51013 Reg VOUT Coil/USB/Adapter 10 20 15 1 5 Stand Alone Linear Yes
bq51011 Reg VOUT Coil/USB/Adapter 10 20 15 1 5 Stand Alone Linear Yes
bq51010 Reg VOUT Coil/USB/Adapter 10 20 15 0.4 + ILim 7 Stand Alone Linear Yes
New devices are listed in bold red.
For a complete list of Resources, visit: www.ti.com/battery
15Battery Management Solutions Guide TexasInstruments2011
Selection Guide (Device parameters continued on next page)
DeviceNumber of
Cells VIN TypeVIN Max
Operating (V)VIN Absolute
Max (V)VIN OVP
(V)Charge
Current (A)Charge
Voltage (V)Control
Interface TopologyIntegrated Power FET
Solar/Energy Harvesting (Li-Ion)bq24210 1 Adapter/USB 18 20 7.7 0.800 4.2 Stand Alone Linear Yes
bq24650 1 to 6 Solar Panel 28 33 32 10 (Ext) Adj Stand Alone Switching No
LiFePO4
bq25070 1 Adapter/USB 28 30 10.5 1 3.5 Stand Alone Linear Yes
bq24620 1 to 7 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
bq24630 1 to 7 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
Super Capbq24640 1 to 9 Adapter 28 33 32 10 (Ext) Adj Stand Alone Switching No
NiCd/NiMH Chemistrybq2002/C/E/F Multiple Adapter 6 7 — >2 6 Stand Alone Current-limited No
bq2004/E/H Multiple Adapter 5.5 7 — >2 5.5 Stand Alone Switching No
bq2005 Multiple Adapter 5.5 7 — >2 5.5 Stand Alone Switching No
bq24400/1 Multiple Adapter 5.5 7 — >2 5.5 Stand Alone Switching No
Lead-Acid Chemistrybq24450 Multiple Adapter 40 40 — >2 — Stand Alone Linear No
UC3909 Multiple Adapter 40 40 — >2 — Stand Alone Switching No
bq2031 Multiple Adapter 5.5 7 — >2 — Stand Alone Switching No
Multi-Chemistry (Li-Ion and NiCd/NiMH)
bq2000/T Multiple — — 7 V — — — Stand Alone Switching Yes
bq24765 2 to 4 — — 30 V — — — Stand Alone Switching Yes
bq24650 1 to 6 Solar Panel 28 33 32 10A (Ext) Adj Stand Alone Switching No
bq24747 2 to 4 — — 30 V — — — Stand Alone Switching No
Wireless Powerbq51013 Reg VOUT Coil/USB/Adapter 10 20 15 1 5 Stand Alone Linear Yes
bq51011 Reg VOUT Coil/USB/Adapter 10 20 15 1 5 Stand Alone Linear Yes
bq51010 Reg VOUT Coil/USB/Adapter 10 20 15 0.4 + ILim 7 Stand Alone Linear Yes
New devices are listed in bold red.
Battery Management Solutions
Battery Charge Management
(Device parameters continued from previous page)
DevicePrimary Charge
Termination1Charge Timer
Temperature Monitor
Packaging
EVM Comments Price*WCS
P
QFN/
MLP
MSO
PTS
SOP
SOIC
DIP
Solar/Energy Harvesting (Li-Ion)bq24210 Min Current Yes Yes 10 Solar panel VIN $1.10
bq24650 C/10 Yes Yes 16 Max power point tracking $2.85
LiFePO4
bq25070 Min Current No Yes 10 LiFePO4, 50-mA LDO $0.85
bq24620 C/10 Yes Yes 16 LiFePO4, 300 kHz $2.90
bq24630 Programmable Yes Yes 24 LiFePO4, 300 kHz, power selector $2.90
Super Capbq24640 Min Current No Yes 16 SuperCap $2.90
NiCd/NiMH Chemistrybq2002/C/E/F ∆V, PVD, ∆T/∆t, Yes Yes 8 8 Trickle charge $0.85
bq2004/E/H ∆V, PVD, ∆T/∆t, Yes Yes 16 16 Selectable timers and pulse-trickle rates $2.15
bq2005 ∆V, ∆T/∆t, Yes Yes 20 20 Sequential fast charge of two battery packs $2.15
bq24400/1 PVD /∆T / ∆t, Yes Yes 8 8 $1.55
Lead-Acid Chemistrybq24450 Max V, min I No No 16 16 Temp-compensated internal reference $2.75
UC3909 Max V, min I No Yes 20 20 Differential current sense input $3.05
bq2031 Max V, –∆2 V, min I Yes Yes 16 16 Three user-selectable charge algorithms to accommodate cyclic and standby applications $2.80
Multi-Chemistry (Li-Ion and NiCd/NiMH)
bq2000/T PVD, ∆T/∆t, min current Yes Yes 8 8 8 Charges NiCd, NiMH, and Li-Ion $1.50
bq24765 SMBus Yes No 34 SMBus charger with integrated power FETs $3.95
bq24650 C/10 Yes Yes 16 Max power point tracking $2.85
bq24747 SMBus Yes No 28 SMBus with input current-detect comp. $2.90
Wireless Powerbq51013 EPT Cmd to Tx No Yes 28 Receiver, regulated voltage output, compliant to WPC specification 1.0 $3.50
bq51011 EPT Cmd to Tx No Yes 28 Receiver, current limited $3.50
bq51010 EPT Cmd to Tx No Yes 28 Receiver, regulated voltage output, compliant to WPC specification 1.0 $3.50
New devices are listed in bold red.1PVD = peak voltage detection; ∆T/∆t = rate of temperature rise; host controlled = system processor must terminate charging; –∆V = negative voltage change; max V = maximum voltage; min I = minimum current; –∆2V = second difference of cell voltage. *Suggested resale price in U.S. dollars in quantities of 1,000.
For a complete list of Resources, visit: www.ti.com/battery
16Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Single-Cell Solutions — Battery Fuel Gauges
hostsystemorinsidethebatterypack .Theprogrammedinformationispro-cessedinTI’sImpedanceTrack™gaugingtechnologyforpredictionofremainingbatterycapacitywith>99%accuracy .
FeaturesTIgasgaugesandbatterymonitorsaccuratelytrackbatteryactivitytocom-putetheremainingbatterycapacityandsystemrun-time .Thefollowingfeaturesareavailable:
•PatentedImpedanceTrackbatteryfuel-gaugingtechnologyfor>99%accuracy
•System-andpack-sideimplementation•TurnkeysolutionwithcompleteCPU
andbatteryfuel-gaugefirmware•Interrupt-drivengasgaugesignaling
thehostwiththebattery’sspecificstate-of-chargestatus
•GasgaugewithintegratedLDOinsmallpackages
Selection Guide
DeviceApprox. Battery Capacity (mAh)
Min Max Series Cell
SHA-1 Authentication
System or Pack
Communication Protocol Other Features Package Price*
Lithium-Ion, Lithium-Polymer Chemistrybq27000 300 to 6000 1 No Pack HDQ Fuel gauge with fixed-voltage EOD 10-pin DRK 1.15
bq27200 300 to 6000 1 No Pack I2C Fuel gauge with fixed-voltage EOD 10-pin DRK 1.15
bq27010 300 to 6000 1 No Pack HDQ Fuel gauge with compensated-voltage EOD 10-pin DRK 1.25
bq27210 300 to 6000 1 No Pack I2C Fuel gauge with compensated-voltage EOD 10-pin DRK 1.25
bq27500 300 to 6000 1 No System I2C System-side fuel gauge with Impedance Track™ technology 12-pin QFN 1.35
bq27510 300 to 6000 1 No System I2C System-side fuel gauge with Impedance Track technology with integrated LDO 12-pin QFN 1.45
bq27541 300 to 6000 1 Yes Pack I2C/HDQ Pack-side fuel gauge with Impedance Track technology 12-pin QFN 1.45
bq27501 300 to 6000 1 No System I2C System-side fuel gauge with Impedance Track technology with battery ID resistor 12-pin QFN 1.35
bq27505 300 to 6000 1 No System I2C System-side fuel gauge with Impedance Track technology 12-ball CSP 1.40
bq27520 300 to 6000 1 No System I2C System-side fuel gauge with Impedance Track technology with integrated LDO 15-ball CSP 1.50
bq27410 300 to 6000 1 No System I2C System-side fuel gauge with Impedance Track Lite technology with integrated LDO 12-pin QFN 1.40
bq27425 300 to 6000 1 No System I2C System-side fuel gauge with Impedance Track Lite technology with integrated sense resistor 15-ball CSP 1.40
bq28550 300 to 6000 1 Yes Pack SMBus Pack-side fuel gauge with CEDV technology with integrated LDO 12-pin QFN 2.90
*Suggested resale price in U.S. dollars in quantities of 1,000. New devices are listed in bold red. Preview devices are bold blue.
Design FactorsBattery Chemistry—Eachbatterychemistryhasdifferentoperatingcharac-teristics,suchasdischargeprofilesandtheself-dischargerate .Thebatterychem-istryisprogrammedinthedataflashoftheTIfuelgaugetoaccountforthesedifferences .Inaddition,theconditionsoftheend-equipmentsystemcanbepro-grammedinthegasgauge .Designerscanchoosetoimplementthegaugeinthe
Host System Single-Cell Li-lon Battery Pack
PACK–
PACK+
ProtectionIC
CHGDSG
TPower
ManagementController
FETs
I2C
+–
bq27520
LDO
SOC_INT
BAT_GD
VCC
DATA
BatteryLow
CE
TempSense
CurrentSense
VoltageSense
System-Side Impedance Track™ Fuel Gauge with Integrated LDObq27520Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq27520
Thebq27520isahigh-performance,system-sidefuelgaugewithexcellentaccuracy,lowpowerconsumptionandextremelysmallpackagesize .Byinte-gratingthefuel-gaugefunctionintothesystemboard,portable-equipmentdesignerscanuseanembeddedorremovablestandardbatterypackwhileaddingthecapabilitytoaccuratelydisplayremainingpackcapacityandestimatedruntime .Thebq27520featuresaninte-gratedvoltageregulatorthatreducesthetotalcomponentcountforthesystem .Thebq27520alsohasaninterrupt-generationcapabilitythatreducesthesoftwareburdenonthesystemproces-sorbecausethefuelgaugedoesnotrequirerepetitivepollingfromthehost .
Thebq27520usesthepatentedImpedanceTrack™algorithmforfuelgaugingandprovidesinformationsuchasremainingbatterycapacity,stateofcharge,minimumruntimetoempty,batteryvoltage,temperatureandstate
ofhealth .Batteryfuelgaugingwiththebq27520requiresonlyPACK+(P+),PACK–(P–)andthermistor(T)connec-tionstoaremovablebatterypackorembeddedbatterycircuit .
17Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Single-Cell Solutions — Authentication for Batteries and Peripherals
Selection GuideDevice Interface Pins Security Temp (°C) Price*
bq2022A SDQ™ 3 ID number –40 to 85 0.90
bq2024 SDQ 3 ID number –40 to 85 0.95
bq26150 HDQ 5 CRC algorithm –20 to 70 0.95
bq26100 SDQ 5 SHA-1 encryption –20 to 70 0.99
bq27541 I2C/HDQ 12 SHA-1 encryption — 1.45
*Suggested resale price in U.S. dollars in quantities of 1,000.
Design FactorsOriginalequipmentmanufacturersspec-ifyproductstoachieverequiredperform-anceandsafetygoals .Authenticationensuresthatconnecteddevicesfulfilltheestablishedrequirementsandaresafefortheconsumer .
FeaturesTIauthenticationdevicesusethreelevelsofsecurity .
• Identification Number—Thehostcontrollercanrequestanidentificationnumberthatisansweredwithafixedresponse .
• CRC Algorithm—Thehostproces-sorsendsarandomchallengeandreadstheresponsethatisanencodingofthechallengeandasharedsecretkeythroughaCRCwithasharedsecretpolynomial .
• SHA-1 Encryption—Thehostpro-cessorsendsarandomchallengeandreadstheresponsethatisanencodingofthechallengeandasharedsecretkeythroughtheSHA-1cryptographicprimitive .
Pack+
+
–
Pack–
HDQInterface
Authenticationbq26100
Gas Gaugebq275xx
Protector
Pullup
I2Cto Host
Single-cell battery pack with gas gauge and authentication.
18Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Multi-Cell Solutions — Battery Fuel Gauges and Monitors
99% Accurate Gas Gauge Maximizes Run-Timebq20z40-R1, bq20z45-R1, bq20z60-R1, bq20z65-R1, bq20z655-R1, bq34z651
Design FactorsBattery Chemistry—Eachbatterychemistryhasdifferentoperatingcharac-teristics,suchasdischargeprofilesandself-dischargerate .TIgasgaugeICsaredevelopedbychemistrytoaccountforthesedifferencestoaccuratelydisplayremainingenergyinthebattery .
bq20z40-R1
I2C InterfaceCell Inputs
Safety Control
32-kHz Clock
Supply Voltage
Chemical Fuse
Charge/DischargePower FETs
2 to 4 SeriesLi-Ion Cells
SenseResistor(10 mΩ)
TempSensor
32 kHzTime Base
Ext/Int
DedicatedHardware
Communication
OV, UV and Safety
ChargingAlgorithm
Cell-Balance
Algorithm
IntegratingADC
CoulombCounting
ADCInstantaneous
Voltage
bq2941xbq29312A
LDO
OC and SC
LevelTranslator
Second-LevelOver-Voltage
Protection
Pack–
SMBus
Pack +
+–
+–
+–
+–
bq20z65-R1
Charge/DischargePower FETs
SenseResistor( 5 to 20 mΩ)
Gate Driveand Power
Mode Control
Impedance Track™and Gas Gauging
AFE Controland Watchdog
Over- and Under-Voltage Protection
Temperature and Current Protection
Charging Algorithmand SHA-1
Authentication
LEDDisplay
System Controland
Communications
Oscillator
System Controland
Communications
bq294xx
Second-LevelOver-Voltage
Protection
Pack–
SMBus
Pack +
+–
+–
Chemical Fuse
CellBalancing
and Multiplexer
Regulators
CoulombCounter and
Circuit Protection
FeaturesTIgasgaugesandbatterymonitorsaccuratelytrackbatteryactivitytocom-putetheremainingbatterycapacityandsystemrun-time .Theyfeature:•Simplecommunicationprotocols .•High-resolutionanalog-to-digitalcon-
vertersforaccuratecharge/dischargemeasurement .
•IntegratedCPUongasgaugestocomputeremainingbatterycapacityandrun-time .
•Advancedchargemanagementsatis-fiesJEITAspecificationofvariablechargingcurrentandvolltagewithbatteryconditions .
Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq20z65-R1
ThedynamicImpedanceTrack™gasgaugealgorithminthebq20z65extendsbatteryusability,allowinguseofthefullchemicalcapacityavailableinabatterypack .Additionalfeaturesincludeinstantstate-of-chargeandreal-timeimped-ancelearning .ImpedanceTrackalsoenablesreductionindevelopmentandproductiontime .Remainingcapacityisreportedovertheentirelifeofthebatterypackwithbetterthan99%accuracy .Thebq20z65-R1isideallysuitedforbatterypacksusedinmedicalandindustrialequipment,back-upbatteriesandlaptopcomputers .
Example of single-chip solution (gas gauge plus integrated AFE).
Example of two-chip solution (gas gauge plus AFE).
19Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Multi-Cell Solutions — Battery Fuel Gauges and Monitors
Multi-Cell Fuel Gauges Selection Guide
DeviceApprox. Battery Capacity (mAh)
Min Max Series Cell
Number of LEDs
Communication Protocol Other Features Package Price*
NiCd, NiMH Chemistrybq2013H 2000 to 15000 — 5 Single wire (HDQ) Programmable offset error compensation 16-pin SOIC 3.70bq2014H 500 to 6000 — 5 Single wire (HDQ) Register compatible with bq2050H 16-pin SOIC 4.60bq2016 1000 to 4500 — 5 Single wire (HDQ) Automatic offset calibration 28-pin SSOP 3.75
Lithium-Ion, Lithium-Polymer Chemistrybq28400 500 to 16000 2 — SMBus CEDV+ gas gauge with integrated protector 20-pin TSSOP 3.20
bq3060 500 to 32000 2 to 4 — SMBus CEDV+ gas gauge with integrated protector 24-pin TSSOP 3.55
bq20z40-R1 800 to 32000 2 to 4 — SMBus Impedance Track™ fuel gauge for use with bq29330 protector 20-pin TSSOP 3.65
bq20z45-R1 800 to 32000 2 to 4 — SMBus Impedance Track fuel gauge with integrated protector 38-pin TSSOP 4.45
bq20z60-R1 800 to 32000 2 to 4 3, 4 or 5 SMBus Impedance Track fuel gauge with LED for use with bq29330 protector 30-pin TSSOP 3.90
bq20z65-R1 800 to 32000 2 to 4 3, 4 or 5 SMBus Impedance Track fuel gauge with LED and integrated protector 44-pin TSSOP 4.75
bq20z655-R1 800 to 32000 2 to 4 3, 4, 5 or LCD SMBus Impedance Track fuel gauge with LED or LCD and integrated protector 44-pin TSSOP 5.20
bq78PL114 1000 to 650,000 3 to 12 — SMBus High-power gas gauge with protection and advanced cell balancing 48-pin QFN 4.50
bq78PL116 1000 to 650,000 3 to 16 — SMBus High-power gas gauge with protection and advanced cell balancing 48-pin QFN 4.50
bq76PL102 — 1 to 2 — PowerLAN™ 2-cell cell expansion to bq78PL114 and bq78PL116 12-pin QFN 0.90
Lead Acid Chemistrybq78412 1000 to 327,000 — 10 UART Pb-acid battery state-of-charge indicator with run-time display 44-pin HTSSOP 3.90
Multi-Chemistrybq2060A 800 to 10000 2 to 4 5 SMBus or HDQ Most accurate multi-chemistry gauge from TI 28-pin SSOP 3.90
Super Capbq33100 — 2 to 5 — SMBus Fully integrated 2, 3, 4 and 5 series super capacitor manager 24-pin TSSOP 4.20
Battery Monitors bq2019 >20000 — — Single wire (HDQ) 64-bit ID ROM and 1 program output non-volatile memory 8-pin TSSOP 1.95
bq2023 >20000 — — Single wire (SDQ) 64-bit ID ROM and 1 program output automatic offset error calibration 8-pin TSSOP 2.00
bq26200 >20000 — — Single wire (HDQ) High-performance battery, coulomb counter 8-pin TSSOP 2.00
bq26220 >20000 — — Single wire (HDQ) 64-bit ID ROM and 1 program output on-chip voltage measurement 8-pin TSSOP 2.05
bq76PL536 — 3 to 192 — SPI 3- to 6-cell EV and UPS stackable monitor and cell-balancing AFE 64-pin HTQFP 4.30
*Suggested resale price in U.S. dollars in quantities of 1,000. New devices are listed in bold red.
For a complete list of Resources, visit: www.ti.com/battery
Battery Fuel Gauges Family of Products
bq28550bq28400bq27000bq27010bq27200
bq2013Hbq2016
bq78412bq2013Hbq2060A
bq20z40bq20z45bq20z60bq20z65bq20z655
bq2019bq2023bq26200bq26220
bq2060A
<112
5
10
>15
Li-lon LeadAcid
ChemistryIndependent
Pac
k C
apac
ity*
(Ah)
*Pack capacity ratings provide an approximate range for each gas gauge.
NiCd
bq27410bq27505bq27510bq27541
20Battery Management Solutions Guide TexasInstruments2011
VC6
BAT
VC7
VC8
VC9
VC10
VC11
1 kΩ
1 mΩ
SENSE (+)
SENSE (–)
VSS
PACK (–)
PACK (+)
TS
VTSB
ThermistorCheck
NTC/ChargerDisable
VREG
CHG_DET
+–
+–
+–
+–
+–
1 µA+–
3.3-VLDO
DSG FETNMOS Driver
CHG FETNMOS Driver
Cell Monitoringand ControlSubsystems
bq77910
Battery Management Solutions
Multi-Cell Solutions — Lithium-Ion Protection
Selection Guide
Device
Number of Series
Cells
Charge/Discharge Current
(A)
Shutdown Current
(µA) Other Features Package(s) Price*bq2920x 2 — 3 Overvoltage safety with cell balancing 8-pin SON 0.30
bq29330 2, 3 or 4 External FET 1 Integrated LDO, works directly with bq20z90 gas gauge 20-pin TSSOP 1.00
bq2941x 2, 3 or 4 — 3 Overvoltage safety for chemical fuse activation; PTC 8-pin TSSOP 0.45
bq2944x 2, 3 or 4 — 3 Overvoltage safety for chemical fuse activation 8-pin SON 0.45
bq2945x 2 or 3 — 4 Overvoltage safety for chemical fuse activation 6-pin SON 0.40
bq76925 3 to 6 — 1 Host-controlled protector with cell balancing 20-pin TSSOP, 24-pin QFN 1.50
bq77PL900 5 to 10 External PFET — Stand-alone or host-controlled protector with cell balancing 48-pin SSOP 2.95
bq77910 4 to 10 External NFET 5 Stand-alone protector with cell balancing 38-pin TSSOP 2.70
bq77PL157A4225 3 to 6 External NFET 3 Stackable overvoltage protector; stack 3 for 18 series cells 16-pin TSSOP 0.65
*Suggested resale price in U.S. dollars in quantities of 1,000. New devices are listed in bold red.
Design FactorsNumber of Series Cells—Abatterypackisconstructedfromastringofseriesandparallelcells .Eachseriescell,orgroupofparallelcells,requiresprotec-tionfromovercharge,overdischargeandshort-circuitconditions .
Threshold Voltage — Li-IonandLi-Polymercellsareproducedbymanymanufacturers .Somemanufacturers’technologiescreatecellsofdifferentmaxi-mumstressvoltages,otherwiseknownasthe“overvoltagethreshold .”Thisdataisavailablefromthecellsupplier .
Threshold Tolerance—Theover-voltagethresholdhasatolerancethatneedstobeaccountedforinthedesignforsafetyreasons .
Shutdown Current—Inbatterypackapplications,constantcurrentdrawneedstobeverylowtopreservebatterylife .
Charge/Discharge Current—Thepasselementassociatedwitheachpro-tectionICisratedformaximumcurrentwhetheritbeaninternalorexternalFET .
Features•BiCMOSprocessresultsinlowcurrent
consumption .•Differentovervoltagethresholdsallow
onedesigntoworkwithseveralcellsuppliers .
•Sleepcurrentconsumptionoflessthan3 .5µAenablesextendedbatterylife .
•50mVprecisioninternallytrimmedthresholdsmaximizesafety .
•Short-circuitprotectioneliminatestheneedforanexternalfuse .
Stand-Alone Multi-Cell Precision Protector for Li-Ion Chemistriesbq77910Getdatasheetsat:www.ti.com/product/bq77910
5-cell, series FET configuration schematic using the bq77910.
Thebq77910precisionprotectorisacompletestand-alone,self-containedbattery-protectionandcell-balancingdeviceintendedforLi-Ion/Li-Polymerbatterypacks .
Thebq77910monitors4to10seriesindividualcellvoltagesandprovidesfast-actingoutputsthatcanbeusedtodriven-channelMOSFETstointerruptthepowerpath .Activationdelaysandrecov-erymethodsforeachsafetyconditionarefullyprogrammableinnonvolatilememory .
Key Features•4-,5-,6-,7-,8-,9-or10-seriescell
protection•Individualcell-voltagemonitoring•Low-sideNMOSFETdriveforcharge
anddischargecontrol•Compatiblewith1-mWcurrent-sense
resistor•Supply-voltagerange:5 .6Vto50V•Integrated3 .3-VmicropowerLDO
regulator
21Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Wireless Power
OverviewThemarketdemandfortheconvenienceandsafetyofwirelesspowersystemsisgrowingrapidly .Portabledeviceslikesmartphones,music/videoplayers,cameras,andgamecontrollersarejustafewofthebattery-poweredproductsthatcanbeupgradedtoawirelesspowersystemtokeeptheirbatteriescharged .
Whilenear-fieldinductivepowercouplinghasbeenaroundforsometime,applica-tionshavebeenlimitedtoverylowpowerlevels .Sincetoday’sportabledevicesrequireincreasingamountsofpower,andhigher-powerbatteriesrequiremoreadvancedcontrolsystems,anumberofsafetyrisksinthedesignofwirelesspowersystemsmustbeconsidered .CompliancewithWirelessPowerConsortium(WPC)specificationshelpsdesignersavoidsafetyproblemsandensuresinteroperabilitybetweensystems .
Thebasicwirelesspowersystemcon-sistsofapowertransmitterthatis
AC to DC LoadDrivers
Transmitter Receiver
ControllerController
Power
Rectification
V/ISense
CommunicationRx Solutionsbq51013 (Gen2)bq51011 (Gen2)bq25046 (Gen1)MSP430bq1010 (Gen1)
VoltageConditioning
Tx Controller Solutionsbq500210 (Gen2) bq500110 (Gen1)bq500211 (Gen2)
typicallylocatedinabasestationpow-eredbyanAClineorotherstablepowersource .Thepowerreceiverislocatedinthebattery-powereddevicethatusesthepowerreceivedtochargeabattery .Boththetransmitterandreceivercontainwirecoils,andpoweristransferredbetweenthemwithoutelectricalcontactviainduc-tivecoupling .Sincepowerisinductivelytransferredfromthetransmittertothereceiverviacoils,thetransmittermustpowerthecoilwithaswitchingcurrentthathassufficientfrequencytooptimizecouplingbetweencoils .Thereceivercoilthenpicksupthenear-fieldinductiveenergyandusesrectifiersandvoltage-conditioningcircuitrytoproduceaDCoutput .Tocontrolthepowertransfer,itisimportantforthereceivertoconstantlycommunicatewiththetransmittertoindi-catewhenpowerisrequired,howmuchpowertosendandwhentostopsend-ingpower .Thiscommunicationsdataisexchangedthroughthesamecoilsthatcouplethepower .
TIoffersagrowingfamilyofwirelesspowertransmittersandreceiversthatsupporttheWPCQispecification .Thebq500210isanewQi-complianttrans-mittermanagerthatoffersintelligentcontrolofthepowertransferbetweenabasestationandamobiledevice .Thebq5101xQi-compliantintegratedreceiv-ersprovidearegulatedDCoutputanddigital-controlfeedbacktothetransmit-ter .Thefollowingpagesprovidemoredetailsaboutthesedevices .Formoreinformation,visit:
www.ti.com/wirelesspower
Receiver-Side SolutionsTI’sQi-compliantreceiversintegratealow-impedance,fullsynchronousrecti-fier,alow-dropoutregulator(LDO),digitalcontrolandaccuratevoltageandcurrentloops .Theentirepowerstage(rectifierandLDO)utilizelow-impedanceNMOSFETstoensurehighefficiencyandlowpowerdissipation .
22Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Wireless Power
Integrated, Qi-Compliant, Wireless Power-Supply Receiversbq51010, bq51011, bq51013Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq51010
Togetherwiththebq500210transmittercontroller,thebq5101xfamilyofreceiversenablesacompletecontactlesspower-transfersystemforawirelesspower-supplysolution .
Key Features•Integratedwirelesspowerreceiverwith
a5-Vregulatedsupply•93%overallpeakAC-to-DCefficiency•Fullsynchronousrectifier•WPCv1 .0-compliantcommunication
control•Output-voltageconditioning•OnlyICrequiredbetweenRxcoiland
5-VDCoutputvoltage•Internaldynamicrectifiercontrolfor
improvedload-transientresponse•Supports20-Vmaximuminput•Low-powerdissipativerectifierover-
voltageclamp(VOVP=15V)•Thermalshutdown•SingleNTC/controlpin•1 .9x3-mmWCSPpackage
Applications•Cellandsmartphones•Headsets•Digitalcameras•Portablemediaplayers•Handhelddevices
bq5101x
PGND
OUT
EN1
AD
C4
C3
EN2
C1
C2
CBOOT2
CCOMM1
CCOMM2
CBOOT1
CCLAMP2
CCLAMP1
AC1
AC2
COMM2
ILIMR1
CLAMP2
Coil
BOOT1RECT
R2
NTC
VTSB
TS/CTRL
R4
D1
BOOT2 R3
CLAMP1
COMM1
AD-EN
CHG
SystemLoad
Host
3-State
Bi-State
Bi-State
Q1USB or ACAdapter
Input
C5
Example 5 x 15-mm PCB with all receiver-
side circuitry.
Selection Guide (Device parameters continued below)
DeviceNumber of
Cells VIN TypeVIN Max
Operating (V)VIN Absolute
Max (V)VIN OVP
(V)Charge
Current (A)Charge
Voltage (V)Control
Interface TopologyIntegrated Power FET
bq51013 Reg VOUT Coil/USB/Adapter 10 20 15 1 5 Stand Alone Linear Yes
bq51011 Reg VOUT Coil/USB/Adapter 10 20 15 1 5 Stand Alone Linear Yes
bq51010 Reg VOUT Coil/USB/Adapter 10 20 15 0.4 + ILim 7 Stand Alone Linear Yes
(Device parameters continued from above)
DevicePrimary Charge
TerminationCharge Timer
Temperature Monitor
PackagingEVM Comments Price*WCSP QFN/MLP
bq51013 EPT Cmd to Tx No Yes 28 Receiver, regulated voltage output, compliant to WPC specification 1.0 3.50
bq51011 EPT Cmd to Tx No Yes 28 Receiver, current Limited 3.50
bq51010 EPT Cmd to Tx No Yes 28 Receiver, regulated voltage output, compliant to WPC specification 1.0 3.50
*Suggested resale price in U.S. dollars in quantities of 1,000.
23Battery Management Solutions Guide TexasInstruments2011
Battery Management Solutions
Wireless Power
Transmitter-Side SolutionsTIoffersdedicateddigitalcontrollersthatintegratethelogicfunctionsrequiredtocontrolwirelesspowertransferinasingle-channel,WPC-compliant,contactless-chargingbasestation .Theseintelligentcontrollersperiodicallypingthe
TEMP_EXT
V_INI_OUT 12-Bit
ADC
Microcontroller
Temp_Int
PWM-B (EN)
PMB_CLKPMB_DATA
PWM-A
JTAG
I2C(PMBus™)
TRST
Debug/Programming
TMSTDITDOTCK
BUZ_DCBUZ_AC
MSP430 CNTLLED Drive
bq500210
PWM
LED Control/Low-PowerSupervisorInterface
BuzzerControl
Sleep Reset
Low-PowerControl
COMM_B+COMM_B–
COMM_A+COMM_A– Digital
Demodulation
Qi-Compliant, Wireless Power-Transmitter Managerbq500210Getsamples,datasheets,evaluationmodulesandappreportsat:www.ti.com/product/bq500210
Togetherwiththebq5101xreceivers,thebq500210transmittercontrollerenablesacomplete,contactlesspower-transfersystemforawirelesspower-supplysolution .
Key Features•Intelligentcontrolofthepowertrans-
ferbetweenbasestationandmobiledevice
•ConformstoWPCv1 .0 .2specification•DemodulatesanddecodesWPC-
compliantmessagepacketsfromthepower-receivingdeviceoverthesamewirelesslinkthattransferselectricalpower
•Implementsclosed-loopcommunica-tionstocontrolpowertransferbyvary-ingfrequencyofthevoltageonthetransmittingcoil
•Parasiticmetal-objectdetection(PMOD)
•Operating-modestatusindicators•Standby•Powertransfer•Chargecomplete•Fault
•Overloadandovertemperatureprotection
•7x7-mm,48-pinQFNpackage
Applications•Transmitterpadforcontactlesscharg-
ingwithWPCcompliance•Low-power(<5-W)endequipment:
Cellphones,digitalcameras,portablemediaplayers,remote/gamingcontrol-lers,Bluetooth®headsetsandotherportabledevices
surroundingenvironmentforavailabledevicestobepowered,monitorallcom-municationfromthedevicebeingwire-lesslypowered,andadjustpowerappliedtothetransmittercoilperfeedbackreceivedfromthepowereddevice .Theyalsomonitortransferefficiencywith
real-timeanalysis,whichprotectsthecontrollersandpowerreceiversfromexcessivepowerlossandheatassoci-atedwithparasiticmetalobjectsplacedinthepower-transferpath .
Selection Guide
Device DescriptionNumber of Channels
Supported Communication
ModulationWPC-Standard
Compliance
Transmitter Power Class
(W)
Transmitter Input Voltage
(Typ) (V) Package Price*
bq500110 Generation 1 wireless power transmitter manager 1 Resistive and
Capacitive Yes 5 19 48-pin VQFN 5.00
bq500210 Generation 2 Qi-compliant wireless power transmitter manager 1 Resistive and
Capacitive Yes 5 19 48-pin VQFN 4.50
*Suggested resale price in U.S. dollars in quantities of 1,000. New devices are listed in bold red.
© 2011 Texas Instruments IncorporatedPrinted in U.S.A. by (Printer, City, State) SLYT420
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Battery Management Solutions
Wireless Power
bqTESLA™ Development Modulesbq500210EVM-689 (Tx) and bq51013EVM-725 (Rx)Getmoreinformationat:www.ti.com/wirelesspower
TI’scombinedbqTESLAevaluationmod-ulesprovideahigh-performance,easy-to-usedevelopmentkitforthedesignoflow-powerwirelesssolutions .Thekitfeaturesthebq500210single-channeltransmitterandthebq510135-Vpower-supplyreceiver,enablingdesignerstospeeddevelopmentoftheirendapplications .
Key Features•bq500210single-channeltransmitter•bq510135-Vpower-supplyreceiver•Noadditionalsoftwaredevelopment
required•Allowsfortrueplug-and-play
functionality•CompatiblewithWPCQispecifications Development kit includes bq500210 and bq51013 evaluation modules.
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