NCP1380 Datasheet - ON Semiconductor

NCP1380 Quasi-Resonant Current Mode Controller

Pin N5 Pin Name 1 ZCD Function Zero Crossing Detection Adjust the over power protection 2 FB Feedback pin 3 CS Current sense 4 GND * 5 DRV Driver output 6 VCC Supplies the controller 7 Fault Over voltage and Over temperature protection (A and B versions) Over

DATA SHEET www.onsemi.com Quasi-Resonant Current-Mode Controller for High-Power Universal Off-Line Supplies NCP1380 The NCP1380 hosts a high performance circuitry aimed to powering quasi resonant converters. Capitalizing on a proprietary valley lockout system, the controller shifts gears and reduces the switching frequency as the power loading becomes lighter. This results in a stable operation despite switching events always occurring in the drain source valley..

NCP1380 Features

* a pin to implement either a combined overvoltage / overtemperature protection (Version A and B) or a combined brown

* out/overvoltage protection (Version C and D). Features

* Quasi

* Resonant Peak Current

* Mode Control Operation

* Valley Switching Operation with Va

NCP1380_ONSemiconductor.pdf