SLUSCU0I March 2018 – September 2020 BQ77915
A UTC fault occurs when the temperature decreases such that the voltage across an NTC thermistor gets above the UTC voltage threshold, VUTC, for a time of a UTC delay, tUTC_DELAY. CHG is turned off. The state comparator is turned on when CHG is turned off. If a discharge current is detected, the device will immediately switch the CHG back on. The response time of the state comparator is typically in 700 µs and should not pose any disturbance in the discharge event. The UTC fault recovers when the voltage across thermistor gets below UTC recovery threshold, VUTC_REC, for a time of UTC delay.