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UCC2897 - Active Clamp PWM Controller

Datasheet Summary

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.

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 D TrueDrivet 2-A Sink, 2-A Source Outputs D 110-V Input Startup Device D Trimmed Internal Bandgap Reference for Accurate Line UV and Line OV Threshold D Programmable Slope Compensation D High-Performa.

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Datasheet preview – UCC2897

Datasheet Details

Part number UCC2897
Manufacturer Texas Instruments
File Size 1.08 MB
Description Active Clamp PWM Controller
Datasheet download datasheet UCC2897 Datasheet
Additional preview pages of the UCC2897 datasheet.

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Full PDF Text Transcription

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UCC2897 ą SLUS591G − NOVEMBER 2003 − REVISED DECEMBER 2008 ADVANCED CURRENTĆMODE ACTIVE CLAMP PWM CONTROLLER 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 D TrueDrivet 2-A Sink, 2-A Source Outputs D 110-V Input Startup Device D Trimmed Internal Bandgap Reference for Accurate Line UV and Line OV Threshold D Programmable Slope Compensation D High-Performance 1.
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