NCP1337 Description
PWM Current-Mode Controller for Free Running Quasi-Resonant Operation NCP1337 The NCP1337 bines a true current mode modulator and a demagnetization detector which ensures full Borderline/Critical Conduction Mode in any load/line conditions together with minimum drain voltage switching (Quasi−Resonant operation). The transformer core reset detection is done internally, without using any external signal, due to the...
NCP1337 Key Features
- Free-Running Borderline/Critical Mode Quasi-Resonant Operation
- Current-Mode
- Soft-Skip Mode with Minimum Switching Frequency for Standby
- Auto-Recovery Short-Circuit Protection Independent of Auxiliary
- Overvoltage Protection
- Brown-Out Protection
- Two Externally Triggerable Fault parators (one for a disable
- Internal 4.0 ms Soft-Start
- 500 mA Peak Current Drive Sink Capability
- 130 kHz Max Frequency
NCP1337 Applications
- AC−DC Adapters for Notebooks, etc