SLUA963B June 2020 – October 2022 UCC21710-Q1 , UCC21732-Q1 , UCC5870-Q1
The driver IC also has integrated thermal monitoring to prevent failure during overheating conditions. Both the primary and secondary sides of the driver utilize thermal warning and shutdown comparators to help mitigate damage due to high temperatures. When a thermal warning is detected on the primary side, the Status is set and, if unmasked, a fault is reported. If an over-temperature event is detected on the primary side, the device transitions to the RESET state where the driver output is held low. Once the device cools, the UCC5870-Q1 must be reconfigured. If a thermal warning is detected on the secondary side, the Status is set and, if unmasked, the fault is reported. When a thermal shutdown is detected on the secondary side, the driver is disabled, the Status is set and, if unmasked, the fault is reported. Once the driver cools and the fault clears, the UCC5870-Q1 must be reconfigured.