BQ2084-V140_14 Datasheet, PDF (26/64 Pages) Texas Instruments – SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312

bq2084-V140
SLUS664B – JULY 2005 – REVISED AUGUST 2006
Normal Operation
SBS.VCELLx( ) Measured
SBS.PackVoltage( ) Measured
SBS.Voltage( ) calculated
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No
SBS.Voltage( ) <=
DF.Shutdown
Threshold ?
Yes
No
SBS.Current( ) <= 0?
Yes
SBS.PackVoltage( ) <
No
DF.Vpack Threshold ?
Yes
No
Has Time since exit
from last Shutdown >
DF.Shutdown Timer?
Yes
bq2084 Enters Shutdown
DEFAULTS:
Non-Removable Pack
DF.ShutdownVoltage = 2.8 V x Number of Series cells; DF.ShutdownTimer = 2 s
NOTE: VpackThreshold must be greater than Shutdown voltage + 6%.
Removable Pack
DF.ShutdownVoltage = 2.8 V x Number of Series cells; DF.ShutdownTimer = 20 s
NOTE: VpackThreshold must be greater than Shutdown voltage + 6%.
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