onsemi NCP1361/62/66 PWM controller

The NCP1362 is a new quasi−resonant peak current mode control mode controller targeting output power levels from a few watts up to 50 W in a flyback application. It is primary side regulated for Constant Voltage and Constant Current regulation, achieving excellent line and load regulation without requiring the typical opto-coupler and voltage reference.

Key features

• Quasi−Resonant with Valley Switching Operation
• Maximum Frequency Clamp (No Clamp, 80, 110 and 140 kHz)
• Frequency Jittering
• LFF and BO Feature on a Dedicated Pin

Additional features

• Dual Frozen Peak Current
• Constant Voltage Primary−Side Regulation < ±5%
• Constant Current Primary−Side Regulation < ±5%

Applications

• Low Power AC/DC Adapters
• Industrial Auxiliary Power
• Battery Chargers
• Set-top Box
• Auxiliary Power