UCC14240-Q1 integrates the primary-side, secondary-side power stages, as well as the isolation transformer. The power loss caused by the power conversion causes the module temperature higher than the ambient temperature. To ensure the safe operation of the power module, the UCC14240-Q1 device is equipped with over-temperature protection. Both the primary-side power stage, and the secondary-side power stage temperatures are sensed and compared with the over-temperature protection threshold. If the primary-side power stage temperature becomes higher than TSHUTP_{PRIMARY_RISE}, or the secondary-side power stage temperature becomes higher than TSHUTS_{SECONDARY_RISE} , the module enters over-temperature protection mode. The module stops switching; PG pin becomes open. After protection, the module enters latch-off mode. When the power stage temperature drops below the over-temperature recovery threshold, recycling V_VIN, or toggling ENA pin voltage brings the model out of latch-off mode. Depending on ENA pin voltage, the module either starts switching, delivering power to the secondary side, or in the standby mode waiting for ENA pin voltage becomes high.