UC3854 Datasheet - Unisonic Technologies

UC3854, ENHANCED HIGH POWER FACTOR PREREGULATOR

UNISONIC TECHNOLOGIES CO., LTD UC3854 Preliminary ENHANCED HIGH POWER FACTOR PREREGULATOR * .
The UTC UC3854 provide all the functions necessary for active power factor corrected preregulators.

Features

* such as wide bandwidth, low offset Current Amplifier, a faster responding and improved accuracy enable comparator, a VREF "good" comparator, UVLO threshold options (16/10V for offline, 10.5/10V for startup from an auxiliary 12V regulator), lower startup supply current, and an enhanced multiply/divid

UC3854-UnisonicTechnologies.pdf