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| BQ2084-V133 Datasheet, PDF (5/64 Pages) Texas Instruments – SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312 | |||
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www.ti.com
SMBus TIMING DIAGRAMS
bq2084-V133
SLUS640A â JUNE 2005 â REVISED JUNE 2005
SYSTEM DIAGRAM
Pack +
Pres
SMBus
Fuse
bq2084âV133
Pre-Charge Control
Fail-Safe
Protection
PF Input
Power Management
LDO, TOUT and Power Mode Control
3.3 V
Temperature Measurement TINT
<1% Error
T1
1 k Bytes of
User Flash
32 kHz Clock
Generator
Cell Balancing Algorithm and Control
32 kHz
SBS v1.1 Data
System Interface
I2C
bq29312 RAM/Comms Validation
1 st Level OC
Protection
1 st Level OV and
UV Protection
Pack Under
Voltage Power
Mode Control
Cell and Pack
Voltage
Measurement
Capacity Prediction <1% Error
Discharge / Charge /
Pre-Charge FETs
bq29312
PCH FET Drive
Pre-Charge
FET Drive
Cell Balancing
Drive
LDO, Therm Output Drive and UVLO
System
Watchdog
Delay Counters
System Interface
RAM Registers
Power Mode Control
2-Tier Overcurrent Protection
Voltage Level Translator
Pack â
Sense Resistor
(5 to 30 mâ¦)
5
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