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EV3302_S2_R0 10 Series Cell Battery
Monitor and Protection Board Parameters Subject to ChangeParameters Subject to ChangeParameters Subject to ChangeParameters Subject to Change Without NoticeWithout NoticeWithout NoticeWithout Notice
EV3302_S2_R0 JoulWatt® Proprietary Information. Patent Protected. 1 Unauthorized Photocopy and Duplication Prohibited.
FEATURES
� Input voltage is high to 60V
� Monitor 14 series cell battery and support
series operation
� 12-BIT ∆Σ ADC samples battery voltage and
accuracy is 5V/212=1.25mV
� Provide filtering modes
� 4 channels thermal sense and the accuracy
is 5V/212=1.25mV
� Battery over/under voltage protection
� Battery over/under temperature protection
� Open wire connection detection
� 14 cells passive balance
on-chip passive cell balancing switches
provision for off-chip passive balancing
� 12-BIT ∆Σ ADC senses charge/discharge
current and accuracy is 400mV/212=97µV
� Independent discharge control by the CTLD
control pin
� Over Charge/Discharge current protection
� Charge/Discharge Short protection
� Reliable SPI communication with CPU
� 3.3V and 5.0V LDO output for external
application
� External protection N-MOSFETs
� Low power consumption
During operation 1mA typ.
During low-power 130µA typ.
During standby 80µA typ.
� LQFP-48 package
APPLICATIONS
� Electric Bicycles, Motorcycles.
� Backup Battery Systems
� Hybrid Electric Vehicles
DESCRIPTION
JW®3302 is a multi-cell battery stack monitoring
and protection IC that includes a 12-bit ADC for
battery voltage and temperature sense, a 12-bit
ADC for charge/discharge current sense.
JW3302 provides passive balance function for
each cell and allows at most 3 consecutive cells
being discharged simultaneously.
JW3302 have two ADC operation modes: fast
mode and filtering mode. The fast mode enables
conversion time as fast as 640µs, while the
filtering modes provide better than 80dB rejection
at frequencies above 50Hz.
JW3302 communicates with external control unit
via SPI interface. More JW3302 can operation in
series to monitor long string battery.
JW3302 integrates complete protect function
including over/under voltage, over/under thermal,
over charge/discharge current, short and open
wire.
JW3302 supports low-power mode and standby
mode to achieve high efficiency with low power
when charge/discharge current is minor.
EV3302_S2_R0 JoulWatt
EV3302_S2_R0 JoulWatt® Proprietary Information. Patent Protected. 2 Unauthorized Photocopy and Duplication Prohibited.
EVALUATION BOARD
BATTERY SMART PROTECTION BOARD FUNCTION
No. Item
1 Over charge protection
2 Over discharge protection
3 Charge over current protection
4 Discharge over current protection
5 Discharge short circuit protection
6 Battery temperature protection(Need adding NTC resistor)
7 Battery voltage sample
8 MCU STM8L151C8T6
EV3302_S2_R0 JoulWatt
EV3302_S2_R0 JoulWatt® Proprietary Information. Patent Protected. 3 Unauthorized Photocopy and Duplication Prohibited.
ELECTRICAL SPECIFICATIONS
Parameters Symbol Value Unit
Battery Voltage VBAT 14-60 V
Battery Cell Numbers BATTERY_CELLS_NUM 10
Battery Temperature Sense Numbers BATTERY_TEMP_NUM 4
Over charge voltage detection threshold OverChg_Threshold 4.25 V
Over charge voltage release threshold OverChg_Release 4.15 V
Over charge voltage detection delay time OverChg_Delay 1 S
Over discharge voltage detection threshold OverDis_Threshold 2.3 V
Over discharge voltage release threshold OverDis_Release 2.4 V
Over discharge voltage detection delay time OverDis_Delay 1 S
Discharge over current detection threshold DisOverCur_Threshold 50 A
Discharge over current detection delay time DisOverCur_Delay 2 S
Charge over current detection threshold ChgOverCur_Threshold 15 A
Charge over current detection delay time ChgOverCur_Delay 2 S
Discharge short circuit detection threshold DisSht_Threshold 108 A
Discharge short circuit detection delay time DisSht_Delay 320 uA
Charge over temperature detection threshold COT_Threshold 50 °C
Charge over temperature release threshold COT_Release 45 °C
Charge under temperature detection threshold CUT_Threshold -5 °C
Charge under temperature release threshold CUT_Release 0 °C
Discharge over temperature detection threshold DOT_Threshold 70 °C
Discharge over temperature release threshold DOT_Release 60 °C
Discharge under temperature detection threshold DUT_Threshold -20 °C
Discharge under temperature release threshold DUT_Release -10 °C
Temperature protection delay TP_Delay 1 S
Idle current IQ 220 uA
Operation current IOP 5 mA
EV3302_S2_R0 JoulWatt
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SCHEMATIC
3
1
2
Q2AM2324N
R347R
1 2D6
5.1V/200mW
R11 100R C4104/25V
D3
NC
3
1
2
Q7AM2324N
R2247R
1 2
D12
5.1V/200mW
R31 100R C12104/25V
D10
NC
R43100R
3
1
2
Q10AM2324N
R4247R
1 2
D18
5.1V/200mW
R50 100R C18104/25V
D16
NC
R59100R
3
1
2
Q14AM2324N
R5847R
1 2
D25
5.1V/200mW
R63 100R C29104/25V
D22
NC
R67100R
3
1
2
Q17AM2324N
R6647R
1 2
D29
5.1V/200mW
R70 100R C35104/25V
D27
NC
R82100R
3
1
2
Q20AM2324N
R8147R
1 2
D37
5.1V/200mW
R89 100R C44104/25V
D33
NC
R97100R
3
1
2
Q25AM2324N
R9647R
1 2
D46
5.1V/200mW
R106 100R C51104/25V
D45
NC
R115100R
3
1
2
Q3AM2324N
R547R
1 2D7
5.1V/200mW
R12 100R C5104/25V
D5
NC
R25100R
3
1
2
Q8AM2324N
R2447R
1 2
D13
5.1V/200mW
R32 100R C13104/25V
D11
NC
R45100R
3
1
2
Q11AM2324N
R4447R
1 2
D19
5.1V/200mW
R51 100R C19104/25V
D17
NC
R61100R
3
1
2
Q15AM2324N
R6047R
1 2
D26
5.1V/200mW
R64 100R C30104/25V
D23
NC
R69100R
3
1
2
Q18AM2324N
R6847R
1 2
D30
5.1V/200mW
R71 100R C36104/25V
D28
NC
R84100R
3
1
2
Q21AM2324N
R8347R
1 2
D38
5.1V/200mW
R90 100RC42
104/25V
D34
NC
R99 100R
3
1
2
Q26AM2324N
R9847R
1 2
D47
5.1V/200mW
R104100R
C50
104/25V
D44
NC
R116 100R
Bat14
Bat12
Bat11
Bat10
Bat9
Bat8
Bat7
Bat7
Bat6
Bat5
Bat4
Bat3
Bat2
Bat1
Bat13
Bat0 B0
B1
B2
B3
B4
B5
B6
B7
B7
B8
B9
BA
BB
BC
BD
BE
11
22
D51SD103
GND
R23 100R
R4 100R
C54
104/25V
B1
B2
B3
B4
B5
B6
B7
B8
B9
BA
BBBCBDBE
R29 1K
R17 1K
C8101/6.3V
TP1
TP0
TS1TS2TS3TS4
3302_VDO3
VDO5
VCC
ALARMA
CLKA
CSA
MOSIA
MISOA
MISOB
MOSIB
CSB
CLKBALARMB
3302_DSCHG3302_CHG
SRPISPISN
SRN
C231uF/6.3V
C241uF/6.3V
B0
GND
GND
VM
VIN
TP2
CTLD
C21
0.1uF/100V
R52100R
GND
Bat14
CSB
1
MOSIB
2
MISOB
3
MOSIA
4
MISOA
5
CSA
6
CLKA
7
ALARMA
8
VDO5
9
VCC
10
VDO3
11
TP0
12
NC13
TP114
TP215
TS116
TS217
TS318
TS419
VIN20
BE21
BD22
BC23
BB24
NC
25
BA
26
B9
27
B8
28
B7
29
B6
30
B5
31
B4
32
B3
33
B2
34
B1
35
NC
36
B037
GND38
SRN39
ISN40
ISP41
SRP42
CTLD43
DSCHG44
CHG45
VM46
ALARMB47
CLKB48
U3
IC_JW3302_LQFP48
VIN
C9
NC
C7
NC
GND
GND
R56
NC
R57
NCVIN
R27
100R
R33
100RR37
100R
R41
100R
R19
100R
ALARM
MISO
MOSI
CS
CLKCLKB
CSB
MOSIB
MISOB
ALARMB
R47
0R
VDO33302_VDO3
C20 1uF/100V
GND
BAT+1
12
2
D54
1N4148
VCCR133
100R
Bat1Bat2Bat3Bat4Bat5Bat6Bat7Bat8Bat9Bat10Bat11Bat12Bat13Bat14
1
PACK-
NC
PACK-
R137
10K
R136
10K
R135
10K
R134
10K
C60
104/25V
C61
104/25V
C62
104/25V
C63
104/25V
TS1
TS2
TS3TS4
1
GND2
NC
1
GND1
NC
Bat0123456789101112131415
J2
15Pin
GNDGND
1
BAT-
NC
GND
R125
10K
R124
10K
R123
10K
R122
10K
VDO5
TP0TP1TP2
1
PACK+
NC
PACK+
1
BAT+
NC
BAT+
BAT INPUT
TEST PIN
TEST PIN
Bat1Bat2Bat3Bat4Bat5Bat6Bat7Bat8Bat9Bat10Bat11Bat12Bat13Bat14
Bat0123456789101112131415
J3
NC
123
J6
NC
1
23
4
5
J5
NC
GND
BX123
JA1
3Pin
B3
VM OPTION
B61
JB1
1Pin
B9
TEST PIN
INPUT AND TEST PINBAT-
EV3302_S2_R0 JoulWatt
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Figure1. EV3302 Schematic Diagram
PA0
1
NRST/PA1
2
PA2
3
PA3
4
PA4
5
PA5
6
PA6
7
PA7
8
VSS1/VSSA/VREF-
9
VDD1
10
VDDA
11
VREF+
12
Res13
PE014
PE115
PE216
PE317
PE418
PE519
PD020
PD121
PD222
PD323
PB024
PB1
25
PB2
26
PB3
27
PB4
28
PB5
29
PB6
30
PB7
31
PF0
32
PD4
33
PD5
34
PD6
35
PD7
36
PC037
PC138
VDD239
VSS240
PC241
PC342
PC443
PC544
PC645
PC746
PE647
PE748
U8
STM8L151C8
1
23
4U9
=VALUE
R111100K
R1171M
GND
CHSE
VDO3
CHSE
GND
VDO3
C58
1uF/6.3VC59
1uF/6.3V
VDO3
VDO3
485EN_MCU485RX_MCU485TX_MCU
LED_RUN
CS
CLK
MOSI
MISO
ALARM
GND
VDO3C47
0.1uF/6.3V
RX1TX1
MCU_CHGMCU_DSG
PACK-
GND
1 2
LED1
green
R128
470R
R80
10KLDO_12V
CTLD
C52
1uF/6.3V
GND
R120
0RR121
0R
NRSTSWIM
R11410K
C551uF/6.3V
VDO3
GND
NRST
1234
J4
4Pin
VDO3SWIMGNDNRST
3510__EN
SC
PWR_CTL
1
3 2Q32
2N7002
GND
VDO3
G1 Q33
PMOS
CHG_DET
CHG_DET
PACK-R105NC
R1105mR
R1135mR
GND
11
22
D421N4148
R941K
C43
47nF/16V
GND
BX
11
22
D50
SMCJ64CA/1500W
R101NC
R95NC
SRPSRN
BAT+ PACK+
C53
104/100V
VM
1
32
Q192N7002K
R112
0R
R77
0R
B3
3
1
2
Q27
11
22 D52
D4815V
R108
0R
C56104/100V
R118 0.1R
3
1
2
Q23
11
22
D43
D3515V
R87
0R
C48104/100V
R102 0.1R
MOS_DSG
3
1
2
Q28
11
22 D53
D4915V
R109
0R
C57104/100V
R119 0.1R
3
1
2
Q24
11
22 D41
D3615V
R88
0R
C49NC
R103 0.1R
MOS_CHG
BAT-
G1 Q16
ZXMP10A13FTA
3302_CHG
GND
11
22
D311N4148
R861M
R107NC
D56
SOD-123 12V/0.5W M
MSZ12VT1G
LDO_12V
C66
0.1uF/25V
C65
1uF/25V
R126
5.1M
R127
100R
D5715V/0.5W M
MSZ15T1G
C67
1uF/25V
D55
SOD-323 0.1A/100V 1N4148WS
GND
51
4 Q29NMOS
BAT+
3302_DSCHGR46 510R
E2
C3
1
Q13MMBT3906
DSG_IN R53 100R
GND
MOS_DSG
12uA
C010.1uF
GND
MCU功功功功功功VCC从LDO_12V取取
11
22
D01
1N4148
EV3302_S2_R0 JoulWatt
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BILL OF MATERIALS
Qty. Designator Comment Description Footprint Manufac
turer
Manufa
cturer
P/N
1 J2 15Pin Connector CON15-2.54
1 J4 4Pin Connector SIP4-2.54
1 C01 0.1uF Cap 0603C
21 C4, C5, C12, C13, C18,
C19, C29, C30, C35,
C36, C42, C44, C47,
C50, C51, C54, C60,
C61, C62, C63
104/16V Cap 0603C
1 C8 101 Cap 0603C
1 C20 1uF/100V Cap 1206C
1 C21 0.1uF/100V Cap 0805C
2 C23, C24 1uF Cap 0603C
1 C43 47nF/16V Cap 0805C
3 C48, C53, C56 104/100V Cap 1206C
4 C52, C55, C58, C59 1uF/16V Cap 0603C
14 D6, D7, D12, D13, D18,
D19, D25, D26, D29,
D30, D37, D38, D46, D47
5.1V/200mW Zener SOD323
2 D24, D31 1N4148 Diode D1206
4 D35, D36, D48, D49 15V Diode SOD123
2 D42, D54 1N4148 Diode SOD123
3 D43, D50, D52 SMCJ64CA/
1500W
Diode SMC
1 D51 SD103 Diode SOD523
1 LED1 LED LED LED0603
14 Q2, Q3, Q7, Q8, Q10,
Q11, Q14, Q15, Q17,
Q18, Q20, Q21, Q25,
Q26
AO3414 NMOS SOT23-3
1 Q9 MMBT3904 PNP SOT23-3
1 Q13 MMBT3906 NPN SOT23-3 JoulWatt
1 Q16 ZXMP10A13
FTA
PMOS SOT23-3 JoulWatt
2 Q19, Q32 2N7002 NMOS SOT23-3 ST
4 Q23, Q24, Q27, Q28 IPB042N10N
3G
NMOS TO263
1 Q29 NMOS NMOS SOP8
EV3302_S2_R0 JoulWatt
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1 Q64 BSS84P PMOS SOT23
14 R3, R5, R22, R24, R42,
R44, R58, R60, R66,
R68, R81, R83, R96, R98
47R Res 2512R
41 R4, R11, R12, R19, R23,
R25, R27, R31, R32,
R33, R37, R41, R43,
R45, R50, R51, R52,
R53, R59, R61, R63,
R64, R67, R69, R70,
R71, R82, R84, R87,
R88, R89, R90, R97,
R99, R104, R106, R108,
R109, R115, R116
100R Res 0603R
4 R17, R29, R94, R128 1K Res 0603R
1 R133 100R Res 1206R
1 R46 510R Res 0603R
6 R47, R56, R57, R77,
R120, R121
0R Res 0603R
2 R86, R117 1M Res 0603R
2 R95, R101 5mR Res 2512R
2 R102, R118 0.1R Res 1206R
1 R111 100K Res 0603R
1 R112 0R Res 1206R
9 R114, R122, R123, R124,
R125, R206, R208, R210,
R212
10K Res 0603R
1 U9 TLP291 TLP291 SOP4
1 U3 JW3302 IC LQFP48
1 U8 STM8L151C
8
IC LQFP48
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PRINTED CIRCUITS BOARD LAYEROUT
Figure4-Top Layer Figure5-Bottom Layer
Figure6-Top Overlay Figure7-Bottom Overlay
EV3302_S2_R0 JoulWatt
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QUICK START GUIDE
These steps describe quick connection of the JW3302 to demonstrate operation of the AFE potion of the
EVB. For more detailed description, refer to other sections of user guide.
1. Get the JW3302 evaluation software from JoulWatt.
2. Connect battery power supply to the “BAT+” and “BAT-” terminals, and connect the battery pack to
the cells connector “J6” through butted lines. The EV3302 is intended to measure ten individual cells
with a total stack voltage of 14V to 60V
3. Connect electric load to the “PACK+” and “PACK-” terminals.
4. Make other adjustments as desired for evaluation. Refer to other sections of this user guide for
additional details.
CAUTION: As battery pack voltage is higher, great care must be taken to prevent damage and personal injury. Do
not allow short circuit connections, whether electrical or human, between a high voltage point and the system
ground. Be very careful and respect the potential danger of high voltage!
EV3302_S2_R0 JoulWatt
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IMPORTANT NOTICE
� Joulwatt Technology Inc. reserves the right to make modifications, enhancements, improvements,
corrections or other changes without further notice to this document and any product described herein. � Any unauthorized redistribution or copy of this document for any purpose is strictly forbidden.
� Joulwatt Technology Inc. does not warrant or accept any liability whatsoever in respect of any products
purchased through unauthorized sales channel.
Copyright © 2018 EV3302 Incorporated.
All rights are reserved by Joulwatt Technology Inc.