Datasheet Summary
.fairchildsemi.
AN-6073
- Highly Integrated Green-Mode PWM Controller
Introduction
This application note describes a detailed design strategy for a high-efficiency, pact flyback converter. Design considerations and mathematical equations are presented as well as guidelines for a printed circuit board layout. The highly integrated FAN6751 series of PWM controllers provides several Features to enhance the performance for LCDM/TV, NB, and adapters. The green-mode function includes off-time modulation and burst mode to reduce the PWM frequency at light-load and in no-load conditions. To avoid acoustic noise problems, the minimum PWM frequency is set above 18KHz. This...