SC4905A
SC4905A is HIGH PERFORMANCE VOLTAGE MODE PWM CONTROLLER manufactured by SEMTECH.
POWER MANAGEMENT Description
The SC4905A/B is a 10 pin BICMOS primary side voltage mode controller for use in Isolated DC-DC and off-line switching power supplies. It is a highly integrated solution, requiring few external ponents. The device Features a high speed oscillator with integrated feed forward pensation, accurately programmable maximum duty cycle, voltage mode of operation, line voltage monitoring, supply UVLO, low start up current, low voltage current limit threshold and user accessible reference. .. The SC4905A/B device operates at a fixed frequency, highly desirable for Tele applications. Features a separate SYNC pin which simplifies synchronization...
