Description
Pin No Pin Name
Function
1 LATCH
Latch
Off Input
2 FB Feedback + Shutdown pin
3 CS
Current Sense
4 GND 5 DRV 6 VCC
Drive output VCC input
8 HV
High
voltage pin
Pin Description
Pull the pin up or down to latch
off the controller.
Features
- a timer.
- based fault detection that ensures the detection of overload and an adjustable compensation to help keep the maximum power independent of the input voltage. Due to frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low standby power consumption. Internal frequency jittering, ramp compensation, and a versatile latch input make this controller an excellent candidate for the robust power supply designs. A dedicated Off.
NCP1240-ONSemiconductor.pdf
