BQ2085-V1P2 Datasheet, PDF (37/56 Pages) Texas Instruments – SBS-COMPLIANT GAS GAUGE IC FOR USE WITH THE bq29311

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bq2085−V1P2
SLUS590 − DECEMBER 2003
VDQ
The VDQ bit indicates if the present discharge cycle is valid for an FCC update.
0 Discharge cycle not valid
1 Discharge cycle valid
SOV
The SOV bit indicates that the safety output limits have been exceeded. Once set, the flag stays set until the
bq2085−V1P2 is reset.
0 Safety limits not exceeded
1 Safety limits exceeded
CVOV
The CVOV bit indicates that a protection limit has been exceeded. It is set on a Prolonged Overcurrent,
Overvoltage, or Overtemperature condition. The bit is not latched and merely reflects the present fault status.
0 No secondary protection limits exceeded
1 A secondary protection limit exceeded
CVUV
The CVUV bit indicates that a protection limit has been exceeded. It is set on an overload or overdischarge
condition. The bit is not latched and merely reflects the present fault status.
0 No secondary protection limits exceeded
1 A secondary protection limit exceeded
VCELL4-VCELL1 (0x3c-0x3f)
These functions return the calculated individual cell voltages in mV.
DATA FLASH
General
The bq2085−V1P2 accesses the internal data flash during reset and when storing historical data. The data flash
stores basic configuration information for use by the bq2085−V1P2. The data flash must be programmed
correctly for proper bq2085−V1P2 operation.
Memory Map
Table 13 shows the memory map for the data flash. It shows the default programming for the bq2085−V1P2.
The default programming reflects example data for a 3s2p Li-Ion battery pack with a 0.02 Ω sense resistor. The
data flash must be reprogrammed to meet the requirements of individual applications.
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