NCP1219 PWM controller.

• Fixed−Frequency Current−Mode Operation with Ramp
Compensation (65 kHz and 100 kHz Options)
• 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
• Latch and Auto−Recovery Overload Protection Options
• Internal High Voltage Startup Circuit
• Accurate Current Limit Detector (±5%)
• Adjustable Skip Level
• Latch Input for Easy Implementation of Overvoltage and
Overtemperature Protection
• Frequency Modulation for Softened EMI Signature
• 500 mA/800 mA Peak Source/Sink Current Drive Capability