onsemi NCP1271D100R2G

The NCP1271 represents a new generation of the fixed−frequency PWM current−mode flyback controllers. The device features integrated high−voltage startup and excellent standby performance. The proprietary Soft−Skip Mode achieves extremely low−standby power consumption while keeping power supply acoustic noise to a minimum.

• Fixed−Frequency Current−Mode Operation with Ramp Compensation and Skip Cycle in Standby Condition
• Timer−Based Fault Protection for Improved Overload Detection
• “Soft−Skip Mode” Technique for Optimal Noise Control in Standby
• Internal High−Voltage Startup Current Source for Lossless Startup
• ±5% Current Limit Accuracy over the Full Temperature Range
• Adjustable Skip Level
• Internal Latch for Easy Implementation of Overvoltage and Overtemperature Protection
• Frequency Jittering for Softened EMI Signature
• +500 mA/-800 mA Peak Current Drive Capability
• Sub -100 mW Standby Power can be Achieved
• Pin−to−Pin Compatible with the Existing NCP120X Series
• This is a Pb −Free Device

• AC−DC Adapters for Notebooks, LCD Monitors
• Offline Battery Chargers
• Consumer Electronic Appliances STB, DVD, DVDR