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UCC28700 - Constant-Current Controller

Datasheet Summary

Description

The UCC28700 family of flyback power supply controllers provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler.

Features

  • 1 < 30-mW No-Load Power for 5-Star Rating.
  • Primary-Side Regulation (PSR) Eliminates Opto- Coupler.
  • ±5% Voltage and Current Regulation.
  • 130-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs.
  • Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency.
  • Patent-Pending Frequency-Jitter Scheme to Ease EMI Compliance.
  • Wide VDD Range Allows Small Bias Capacitor.
  • Clamped Gate-Drive Output for MO.

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Datasheet preview – UCC28700

Datasheet Details

Part number UCC28700
Manufacturer Texas Instruments
File Size 1.96 MB
Description Constant-Current Controller
Datasheet download datasheet UCC28700 Datasheet
Additional preview pages of the UCC28700 datasheet.

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Full PDF Text Transcription

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Product Folder Sample & Buy Technical Documents Tools & Software Support & Community Reference Design UCC28700, UCC28701, UCC28702, UCC28703 SLUSB41A – JULY 2012 – REVISED DECEMBER 2014 UCC2870x Constant-Voltage, Constant-Current Controller With Primary-Side Regulation 1 Features •1 < 30-mW No-Load Power for 5-Star Rating • Primary-Side Regulation (PSR) Eliminates Opto- Coupler • ±5% Voltage and Current Regulation • 130-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs • Quasi-Resonant Valley-Switching Operation for Highest Overall Efficiency • Patent-Pending Frequency-Jitter Scheme to Ease EMI Compliance • Wide VDD Range Allows Small Bias Capacitor • Clamped Gate-Drive Output for MOSFET • Protection Functions: Overvoltage, Low-Line, and Overcurrent • Progra
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