Description
SC2569 High Performance Current Mode PWM Controller .
SC2569 combines a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective off line flyback.
Features
* Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design
* Power-on Soft Start Reducing MOS Stress
* Audio Noise Free Operation
* External Programmable PWM Switching
Frequency
* Low VDD startup and operating current
* Frequency jitter to Minimize
Applications
* PWM switching frequency at normal operation is externally programmable and trimmed to tight range. At no load or light load condition, the IC operates is extended ‘burst mode’ to minimize switching loss. Lower standby power and higher conversion efficiency is thus achieved. VDD low startup current