Renesas Electronics Corporation Dual Low Voltage Circuit Breaker ISL6174IRZ

This IC targets dual voltage hot swap applications across the +2.5V to +3.3V (nominal) bias supply voltage range with a second lower voltage rail down to less than 1V where a circuit breaker response to an over current event is preferred. It features a charge pump for driving external N-Channel MOSFETs, accurate programmable circuit breaker current thresholds and delay output undervoltage monitoring and reporting and adjustable soft-start.brbr The circuit breaker current level (IsubCB/sub) for each rail is set by two external resistors, and for each rail a delay (tsubCB/sub) is set by an external capacitor on the TCB pin. After tsubCB/sub has expired, the IC then quickly pulls down the associated GATE(s) output turning off its external FET(s).