SNVSBY7 March 2021 TPS92390
Boost overcurrent is detected if the FB pin voltage drops below the VUVP threshold for 110 ms. If the boost overcurrent timer expires before the output voltage recovers, the BSTOCP_STATUS bit is set in the BOOST_FAULT_STATUS register. The fault recovery state is entered, and a fault interrupt is generated. The device will enter Fault Recovery mode and then attempt to restart after 100 ms. If the BSTOCP_STATUS bit is permanently set, it may indicate an issue in the application. Boost overcurrent is monitored from the boost start, and fault may trigger during boost start-up.