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UCC28710 - Constant-Current Controller

General Description

The UCC2871x family of flyback power supply controllers provides isolated-output Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler.

Key Features

  • 1 < 10-mW No-Load Power.
  • Primary-Side Regulation (PSR) Eliminates Opto- Coupler.
  • ±5% Voltage and Current Regulation Across Line and Load.
  • 700-V Start-Up Switch.
  • 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs.
  • Resonant Valley-Switching Operation for Highest Overall Efficiency.
  • Frequency Jitter to Ease EMI Compliance.
  • Wide VDD Range Allows Small Bias Capacitor.
  • Clamped Gate-Drive Output.

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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 UCC28710, UCC28711, UCC28712, UCC28713 SLUSB86C – NOVEMBER 2012 – REVISED JUNE 2017 UCC2871x Constant-Voltage, Constant-Current Controller With Primary-Side Regulation 1 Features •1 < 10-mW No-Load Power • Primary-Side Regulation (PSR) Eliminates Opto- Coupler • ±5% Voltage and Current Regulation Across Line and Load • 700-V Start-Up Switch • 100-kHz Maximum Switching Frequency Enables High-Power Density Charger Designs • Resonant Valley-Switching Operation for Highest Overall Efficiency • Frequency Jitter to Ease EMI Compliance • Wide VDD Range Allows Small Bias Capacitor • Clamped Gate-Drive Output for MOSFET • Overvoltage, Low-Line, and Overcurrent Protection Functions • Programmabl