NCP1218 Overview
NCP1218 PWM Controller with Adjustable Skip Level and External Latch Input The NCP1218 represents a new, pin to pin patible, generation of the successful 7−pin current mode NCP12XX product series. The controller allows for excellent standby power consumption by use of its adjustable skip mode and integrated high voltage startup FET. Internal frequency jittering, ramp pensation, timer−based fault detection and a...
NCP1218 Key Features
- Fixed-Frequency 65 kHz Current-Mode Operation with Ramp
- Dynamic Self Supply Eliminates the Need for an Auxiliary Winding
- Timer-Based Fault Protection for Improved Overload Detection
- Cycle Skip Reduces Input Power in Standby Mode
- Latched Overload Protection
- Internal High Voltage Startup Circuit
- Accurate Current Limit Detector (±5%)
- Adjustable Skip Level
- Latch Input for Easy Implementation of Overvoltage and
- Frequency Modulation for Softened EMI Signature
NCP1218 Applications
- Fixed−Frequency 65 kHz Current−Mode Operation with Ramp
- Dynamic Self Supply Eliminates the Need for an Auxiliary Winding
- Timer−Based Fault Protection for Improved Overload Detection
- Cycle Skip Reduces Input Power in Standby Mode
- Latched Overload Protection