SLUSCU0I March 2018 – September 2020 BQ77915
A UV fault detection is when at least one of the cell voltages is measured below the UV threshold, VUV, for a duration of a UV delay, tUVn_DELAY. The DSG FET is turned off. The UV fault recovers when:
To minimize device supply current when a UV fault has occurred or CTRD was driven to the DISABLED state, the BQ77915 device disables all discharge overcurrent detection blocks. Upon recovery from the fault or when CTRD is no longer externally driven, all discharge overcurrent detection blocks are reactivated.