FP131 Datasheet | Feeling Technology

Over Current Protection IC General Description FP131 is a current detection and over current protection IC. It includes a current shunt parator and shutdown parator with a precision shunt regulator like FP431. The rail current detection gain can be adjusted with three external resistors. The regulator output CSO pin is connected to a shutdown parator for driving a protection circuit like a photo-coupler to shutdown the converter’s primary side PWM IC when over current occurs. The voltage shunt regulator has a 1.25V reference for switching power supply secondary output voltage feedback. FP131 can be used for OCP and output voltage feedback function with few external parts....