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UCC2819A - Power Factor Preregulator

Datasheet Summary

Description

The UCC2819A/UCC3819A provides all the functions necessary for active power factor corrected preregulators.

The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage.

Features

  • D Controls Boost Preregulator to Near-Unity Power Factor D World Wide Line Operation D Over-Voltage Protection D Accurate Power Limiting D Average Current Mode Control D Improved Noise Immunity D Improved Feed-Forward Line Regulation D Leading Edge Modulation D 150-µA Typical Start-Up Current D Low-Power BiCMOS Operation D 10.8-V to 17-V Operation D Programmable Output Voltage (Tracking Boost Topology) BLOCK.

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Datasheet Details

Part number UCC2819A
Manufacturer Texas Instruments
File Size 1.08 MB
Description Power Factor Preregulator
Datasheet download datasheet UCC2819A Datasheet
Additional preview pages of the UCC2819A datasheet.

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Full PDF Text Transcription

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UCC2819A UCC3819A ą SLUS579 − OCTOBER, 2003 PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR FEATURES D Controls Boost Preregulator to Near-Unity Power Factor D World Wide Line Operation D Over-Voltage Protection D Accurate Power Limiting D Average Current Mode Control D Improved Noise Immunity D Improved Feed-Forward Line Regulation D Leading Edge Modulation D 150-µA Typical Start-Up Current D Low-Power BiCMOS Operation D 10.8-V to 17-V Operation D Programmable Output Voltage (Tracking Boost Topology) BLOCK DIAGRAM OVP/EN 10 DESCRIPTION The UCC2819A/UCC3819A provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac-input line current waveform to correspond to that of the ac-input line voltage.
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