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SLUSG22 October 2025 UCC35131-Q1
ADVANCE INFORMATION
The UCC35131-Q1 enters input undervoltage lockout when VVIN voltage becomes lower than the UVLO threshold VVIN_UVLO_F. In UVLO mode, the converter stops switching. After VIN pin voltage falls lower than the VVIN_UVLO_F, UCC35131-Q1 resets all the protections. And then, after the VVIN voltage rises above the UVLO threshold VVIN_UVLO_R, the converter is enabled. Depending on the ENA pin voltage, the converter can start switching, go through the soft-start process, or in the disable mode, waiting for ENA pin voltage becomes high.