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UCC28230 - PWM Controller

Description

The UCC28230, UCC28231 PWM bus controllers are optimized for use in high efficiency, high power density, unregulated intermediate bus converters.

Topologies include push-pull, half-bridge and full-bridge.

Features

  • 1.
  • Programmable, Load Depended Off Time Control.
  • Frequency Controlled Start Up Allows Small Output Inductor, Low Ripple and Constant Current Start with Large Output Capacitor.
  • Two 0.2-A Push-Pull Outputs Provide Matched Control Signals D to External Drivers.
  • Two Additional 1- D Outputs for Optimal Use of Self-Driven or Control Driven Synchronous Rectifiers.
  • Unregulated, Fixed Volt-Second or Fixed Frequency Modes set by User.
  • Two, 1.5% Overall.

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Full PDF Text Transcription

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UCC28230 UCC28231 www.ti.com ................................................................................................................................................... SLUS814A – FEBRUARY 2008 – REVISED JUNE 2008 Advanced PWM Controller for Bus Converters FEATURES 1 • Programmable, Load Depended Off Time Control • Frequency Controlled Start Up Allows Small Output Inductor, Low Ripple and Constant Current Start with Large Output Capacitor • Two 0.2-A Push-Pull Outputs Provide Matched Control Signals D to External Drivers • Two Additional 1- D Outputs for Optimal Use of Self-Driven or Control Driven Synchronous Rectifiers • Unregulated, Fixed Volt-Second or Fixed Frequency Modes set by User • Two, 1.5% Overall Accuracy Reference Voltage Options: 5-V for UCC28230 and 3.
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