BQ2084-V133 Datasheet, PDF (57/64 Pages) Texas Instruments – SBS v1.1-COMPLIANT GAS GAUGE FOR USE WITH THE bq29312

bq2084-V133
www.ti.com
SLUS640A – JUNE 2005 – REVISED JUNE 2005
Charge Suspend Temp Low
Charge Suspend Temp Low (DF 0x79) sets the lowest temperature, in degrees C/10, at which normal operation
is allowed. If the temperature falls below this limit, the pack goes into a temporary failure state, the charge FET is
turned off, and the MAC status is set to system present. It is cleared when the pack warms, or the pack is
removed.
Charge Inhibit Temp Low
Charge Inhibit Temp Low (DF 0x46) inhibits charging by setting ChargingCurrent() and ChargingVoltage() to 0
and turn off the CHG FET. It is programmed in degrees C ÷ 10, and the range of -12.8°C to 12.7°C.
Charge Inhibit Temp High
Charge Inhibit Temp High (DF 0x47-0x48) inhibits charging by setting ChargingCurrent() and ChargingVoltage()
to 0
Charge Suspend Temp High
Charge Suspend Temp High (DF 0x6d-0x6e) sets the highest temperature, in degrees C ÷ 10, at which charging
will be allowed to continue. If this temperature is exceeded during charging, the pack goes into a temporary
failure state, and the MAC status is set to system present. It is cleared when the pack cools below
OverTemperature Charge Reset, or ac adapter is removed, or the pack is removed. Charging can only resume
when the temperature returns to within the charge start temperature limits.
Charge Suspend Temp High Reset
Charge Suspend Temp High Reset (DF 0x6f-0x70) sets the temperature, in degrees C/10, at which the pack
recovers from Charge Suspend Temp High fault.
Over Temperature Discharge
Over Temperature Discharge (DF 0x71-0x72) sets the highest temperature, in degrees C/10, at which
discharging will be allowed. If the pack exceeds this temperature, charge and discharge FETs are turned off, and
MAC status is set to system present. The pack returns to normal operation when the temperature falls below
Over Temperature Discharge Reset, or if the pack is removed.
Over Temperature Discharge Reset
Over Temperature Discharge Reset (DF 0x73-0x74) sets the temperature, in degrees C/10, at which the pack
will recover from Over Temperature Discharge Over temperature will also reset when the pack is removed from
the system if not in the non-removable mode.
Failure Detection Thresholds
Safety OverTemperature Charge
Safety OverTemperature Charge (DF 0x75-0x76) sets the temperature, in degrees C/10, above which, during
charging, the pack enters permanent failure, if the XSOTC bit in Permanent Failure Configuration is set.
Safety OverTemperature Discharge
Safety OverTemperature Discharge (DF 0x77-0x78) sets the temperature, in degrees C/10, above which, during
discharging, the pack enters permanent failure, if the XSOTD bit in Permanent Failure Configuration is set.
Charge Detection Current
Charge Detection Current (DF 0x113-0x114) sets the threshold in milliamperes for detecting charge current. This
is a signed value and is positive. This threshold is used for detecting cross-conduction, and ensuring that charge
termination is not improperly detected due to loss of charging current.
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