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BQ20Z80-V102 Datasheet(PDF) 2 Page - Texas Instruments

Part No. BQ20Z80-V102
Description  SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK TM TECHNOLOGY FOR USE WITH THE BQ29312A
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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BQ20Z80-V102 Datasheet(HTML) 2 Page - Texas Instruments

 
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SYSTEM DIAGRAM
LDO, ThermOutputDrive&UVLO
PowerManagement
LDO, TOUT,andPowerModecontrol
I2C
Impedance Track(TM)+LifetimeDataLogging
SMBus
Pack+
Pack-
Discharge/Charge/
PrechargeFETs
CellandPack
Voltage
Measurement
Precharge
FET Drive
2-TierOvercurrentProtection
32-kHzClock
Generator
bq20z80
768Bytesof
UserFlash
Fuse
1stLevelOVand
UVProtection
PackUndervoltage
PowerMode
Control
PrechargeControl
DelayCounters
CellBalancing AlgorithmandControl
CellBalancing
Drive
SystemInterface
SystemWatchdog
VoltageLevel Translator
SystemInterface
32kHz
PowerModeControl
Fail-SafeProtection
T1
1st LevelOC
Protection
TemperatureMeasurement
<1%Error
TINT
SupplyV oltage
bq29312A
PCHFET Drive
RAMRegisters
SBSv1.1Data
bq29312RAM/CommsValidation
bq294xx
XAlert
Sleep
SenseResistor
(5m-20mWtyp)
PFInput
1
2
7
6
5
4
3
38
37
36
35
34
33
32
VIN
TS1
TS2
PU
PRES
SCLK
VSSD
NC
NC
CLKOUT
XCK1/VSSA
XCK2/ROSC
FILT
SAFE
VDDD
VDDA
RBI
SDATA
VSSD
SAFE
SR2
SR1
VSSA
VSSA
8
9
10
11
12
31
30
29
28
27
13
14
19
18
17
16
15
26
25
24
23
22
21
20
NC
NC
SMBC
SMBD
DISP
PFIN
MRST
XALERT
LED1
LED2
LED3
LED4
LED5
VSSD
NC-Nointernalconnection
bq20z80-V102
SLUS681B – NOVEMBER 2005 – REVISED JANUARY 2007
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
TSSOP (DBT)
(TOP VIEW)
2
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