UCC2897 Datasheet - Texas Instruments

Active Clamp PWM Controller

UCC2897 Features

* D Ideal for Active Clamp/Reset Forward, Flyback and Synchronous Rectifier Apps D Provides Complementary Auxiliary Driver with Programmable Deadtime (Turn-On Delay) between AUX and MAIN Switches D Peak Current-Mode Control with 0.5-V Cycle-by-Cycle Current Limiting D Hiccup Mode 0.75-V Current Limit

UCC2897 General Description

The UCC2897 PWM controller simplifies implementation of the various active clamp/reset and synchronous rectifier switching power topologies. Based on the UCC2891 active-clamp controller the UCC2897 is a peak current-mode, fixedfrequency, high-performance pulse width modulator. It includes the logic .

UCC2897 Datasheet (1.08 MB)