UC3883 Datasheet - UTC

UC3883 PWM CONTROLLER

UTC UC3883 is a highly integrated current mode PWM control IC optimized for high performance, low standby power and cost effective offline flyback converter applications. PWM switching frequency at normal operation is internally fixed and is trimmed to tight range. At no load or light load condition.

UC3883 Features

* Power on Soft Start Reducing MOSFET VDS Stress

* Frequency shuffling for EMI

* Extended Burst Mode Control For Improved Efficiency and Minimum Standby Power Design

* Ultra Low Operating Current at Light Load (typical 0.6mA)

* Audio Noise Free Operation

* Normal 65KHz Switch

UC3883-UTC.pdf