JAJSMY4 September 2021 UCC14240-Q1
For the first pre-production samples, the ENA pin sequence must follow the recommendations below to allow the device to operate within the safe operating region.
Case A: After VIN has been applied and V(ENA) > VEN_IR: Never set V(ENA) < VEN_IF with V(VIN) > VVIN_UVLOP_FALLING.
Case B: To reset a fault condition detected by the module that resulted in /PG = high, while keeping V(ENA) > VEN_IR:
Case C: To power-down and power-up, use this ENA triggered power-up sequence: