UC3853 Datasheet - Unitrode

UC3853 - High Power Factor Preregulator

The UC3853 provides simple, yet high performance active power factor correction. Using the same control technique as the UC1854, this 8-pin device exploits a simplified architecture and an internal oscillator to minimize external component count. The UC3853 incorporates a precision multiplier/square.

UC3853 Features

* Complete 8-pin Power Factor Solution

* Reduced External Components

* RMS Line Voltage Compensation

* Precision Multiplier/Squarer/Divider

* Internal 75kHz Synchronizable Oscillator

* Average Current Mode PWM Control

* Overvoltage Protection C

UC3853-Unitrode.pdf