NCP1377B Description
NCP1377, NCP1377B PWM Current-Mode Controller for Free-Running Quasi-Resonant Operation The NCP1377 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). Due to its inherent skip cycle capability, the controller enters burst mode as soon as the...
NCP1377B Key Features
- Free-Running Borderline/Critical Mode Quasi-Resonant Operation
- Latched Overvoltage Protection
- Auto-Recovery Short-Circuit Protection Via UVLO Crossover
- External Latch Triggering, e.g. Via Overtemperature Signal
- Current-Mode with Adjustable Skip Cycle Capability
- Internal 1.0 ms Soft-Start
- Internal Temperature Shutdown
- Internal Leading Edge Blanking
- 500 mA Peak Current Source/Sink Capability
- Under Voltage Lockout Level of 12.5 V (On) and 7.5 V (Min)
NCP1377B Applications
- AC−DC Adapters for Notebooks, etc