Datasheet
The UC1842/3/4/5 family is a current mode PWM controller optimized for off-line and DC to DC converters. It features low start-up current, automatic feed forward compensation, pulse-by-pulse current limiting, enhanced load response characteristics, etc.
Datasheet
This datasheet provides detailed information on the UC1842/3/4/5 series current mode PWM controllers. This series of controllers features low start-up current (less than 1 mA), automatic feed forward compensation, pulse-by-pulse current limiting, enhanced load response characteristics, under-voltage lockout with hysteresis, double pulse suppression and high current totem pole output stage.