•Provides the system ALL data needed to effectively manage the battery & extend run-time •No calculations with the host micro- controller for easy implementation of accurate fuel gauge •Accurate display of run time under all conditions •Provides near empty warning for auto-saving of data •Impedance Track™ requires no learning or conditioning cycle •System side implementation – no extra circuitry needed inside of battery pack • Patented Impedance Track™ next generation gauging algorithm • Accurate & complete battery fuel gauge • CPU-based IC reports remaining battery capacity, time-to empty, voltage, current and temperature • Calculates remaining charge under all conditions of discharge rate, temperature, and cell age • System side implementation even with removable battery. BQ27500 Complete System Side Battery Fuel Gauge with Impedance Track™ technology for single cell Li-Ion Applications Accurate cost-efficient battery fuel-gauge that is easy to implement •PDAs, Cellular Handset, Ultra Mobile PC’s, Portable Gaming, Multimedia Players, Digital Cameras H ostSystem Single C ell Li-Ion Battery Pack PACK+ PACK- SDQ BQ 26100 (O PTIO NAL) FETs PROTECT IC CHG DSG BQ 27500 TS G PIO SDQM SRP SRN SCLSDA VCC BAT VSS T BATID LOW BAT uC REG

Provides the system ALL data needed to effectively manage the battery & extend run-time No calculations with the host micro-controller for easy implementation

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• Provides the system ALL data needed to effectively manage the battery & extend run-time

• No calculations with the host micro-controller for easy implementation of accurate fuel gauge

• Accurate display of run time under all conditions• Provides near empty warning for auto-saving of

data• Impedance Track™ requires no learning or

conditioning cycle• System side implementation – no extra circuitry

needed inside of battery pack

• Patented Impedance Track™ next generation gauging algorithm

• Accurate & complete battery fuel gauge• CPU-based IC reports remaining battery capacity,

time-to empty, voltage, current and temperature• Calculates remaining charge under all conditions of

discharge rate, temperature, and cell age• System side implementation even with removable

battery.

BQ27500 Complete System Side Battery Fuel Gauge with Impedance Track™ technology for single cell Li-Ion Applications

Accurate cost-efficient battery fuel-gauge that is easy to implement

• PDAs, Cellular Handset, Ultra Mobile PC’s, Portable Gaming, Multimedia Players, Digital Cameras

Host System

Single Cell Li-IonBattery Pack

PACK+

PACK-

BQ26100(OPTIONAL)

FETs

PROTECTIC

CHG

DSG

BQ27500 TS

GPIO

SDQM

SRP

SRN

SCL SDA VCC

BAT

I2C

VSS

BATID

LOWBAT

uCREG

Page 2: Provides the system ALL data needed to effectively manage the battery & extend run-time No calculations with the host micro-controller for easy implementation

Single-Cell Fuel Gauge PortfolioProtector

Fuel Gauge

Security

1Q2007

Product Key

bq27540

• Impedance Track III• Battery Pack side design• SHA-1 Security integrated• 12 pin, 2.5x4 mm QFN

bq27500

• Impedance Track III• Host side design• SHA-1 Security integrated• 12 pin, 2.5x4 mm QFN

bq27010

• Compensated EDV• HDQ Interface

bq27210

• Compensated EDV• I2C Interface

bq27000

• Fixed EDV• HDQ Interface

bq27200

• Fixed EDV• I2C Interface

bq27350

• Impedance Track III• Battery Pack side design• SHA-1 Security integrated• 20 pin package

bq26100

• SHA-1 Security

bq2022

• 64 bit ID

bq2019

• Battery monitor

Page 3: Provides the system ALL data needed to effectively manage the battery & extend run-time No calculations with the host micro-controller for easy implementation

BQ27500 Family Overview

PartNumber

Competitor IntegratedCPU

CalculatesremainingBatteryCapacity

Run timeprediction

ImpedanceTrack

Authentication PowerModes

KeyDifference

BQ27500 TI YES YES YES YES YES 4 The integratedCPU allows thebq26500x/bq27000to develop acomprehensivedata set byperforming all thecalculations itself.The host systemprocessor simplereads thebq2650x/bq27000for information.

BQ26500 TI YES YES YES NO NO 4

BQ27000BQ27200

TI YES YES YES NO NO 4

BQ27010BQ27210

TI YES YES YES NO NO 4