SLUS987C January 2011 – December 2019 BQ33100
PRODUCTION DATA.
The BQ33100 has overtemperature protection to prevent charging at excessive temperatures.
When Temperature exceeds OT Chg the [OT] flag in SafetyAlert is set.
When Temperature exceeds OT Chg for a period greater than OT Chg Time the [OT] flag in SafetyStatus is set.
This function is disabled if OT Chg Time is set to 0.
In an overtemperature condition, charging is disabled and the CHG FET is turned off, ChargingCurrent and ChargingVoltage() are set to 0.
The overtemperature fault is cleared when Temperature falls equal to or below the OT Chg Recovery limit. When the recovery condition is detected, then the CHG FET is allowed to be turned on, if other safety and configuration states permit, ChargingCurrent and ChargingVoltage() are set to the appropriate value per the charging algorithm, and the [OT] flag in SafetyStatus is reset.