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UCC2897A - Active Clamp PWM Controller

General Description

The UCC2897A PWM controller simplifies implementation of the various active clamp or reset and synchronous rectifier switching power topologies.

The UCC2897A is a peak current-mode fixedfrequency high-performance pulse-width modulator.

Key Features

  • 1 Low-output jitter.
  • Soft-stop shutdown of MAIN and AUX.
  • 110-V input startup function.
  • Ideal for active-clamp, reset-forward, flyback and synchronous rectifier uses.
  • Provides complementary auxiliary driver with programmable dead time (Turn-On Delay) between AUX and MAIN switches.
  • Peak current-mode control with 0.5-V cycle-bycycle current limiting.
  • TrueDrive™ 2-A Sink, 2-A source outputs.
  • Trimmed internal-bandgap reference fo.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Product Folder Order Now Technical Documents Tools & Software Support & Community Reference Design UCC2897A SLUS829G – AUGUST 2008 – REVISED FEBRUARY 2020 UCC2897A Advanced Current-Mode Active-Clamp PWM Controller 1 Features •1 Low-output jitter • Soft-stop shutdown of MAIN and AUX • 110-V input startup function • Ideal for active-clamp, reset-forward, flyback and synchronous rectifier uses • Provides complementary auxiliary driver with programmable dead time (Turn-On Delay) between AUX and MAIN switches • Peak current-mode control with 0.