SLUS987C January 2011 – December 2019 BQ33100
PRODUCTION DATA.
The BQ33100 starts capacitor voltage imbalance detection when Current is less than or equal to CIM Current AND ALL CapacitorVoltage5..1 > Min CIM Check Voltage.
When the difference between highest capacitor voltage and lowest capacitor voltage exceeds CIM Fail Voltage the [CIM] flag in SafetyAlert is set.
When the difference between highest capacitor voltage and lowest capacitor voltage exceeds CIM Fail Voltage for a period greater than CIM Time the [CIM] flag in SafetyStatus is set and ChargingCurrent and ChargingVoltage() are set to 0 and the CHG FET is turned off. SafetyStatus() [CIM] is cleared and CHG FET is allowed to turn ON when the differences between the highest capacitor voltage and lowest capacitor voltage is less than CIM Recovery.
This function is disabled if CIM Time is set to 0.
The capacitor voltage imbalance detection is cleared when the difference between highest capacitor voltage and lowest capacitor voltage is less than CIM Fail Voltage. When this 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 [CIM] flag in SafetyStatus is reset.