NCP1380 Description
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 bees lighter. This results in a stable operation despite switching events always occurring in the...
NCP1380 Key Features
- Quasi-Resonant Peak Current-Mode Control Operation
- Valley Switching Operation with Valley-Lockout for Noise-Immune
- Frequency Foldback at Light Load to Improve the Light Load
- Adjustable Over Power Protection
- Auto-Recovery or Latched Internal Output Short-Circuit Protection
- Fixed Internal 80 ms Timer for Short-Circuit Protection
- bined Overvoltage and Overtemperature Protection (A and B
- bined Overvoltage Protection and Brown-Out (C and D
- +500 mA/-800 mA Peak Current Source/Sink Capability
- Internal Temperature Shutdown