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UCC28730 - PSR Flyback Controller

General Description

The UCC28730 isolated-flyback power supply controller provides Constant-Voltage (CV) and Constant-Current (CC) output regulation without the use of an optical coupler, and wake-up signal detection to improve transient response to large load steps.

Key Features

  • 1 Enables Zero-Power (.

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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 UCC28730 SLUSBL5A – FEBRUARY 2015 – REVISED JUNE 2019 UCC28730 Zero-Power Standby PSR Flyback Controller With CVCC and Wake-Up Monitoring 1 Features •1 Enables Zero-Power (<5 mW) standby consumption • Smart Wake-Up detection enables smallest output capacitance • Primary-side regulation (PSR) eliminates optocoupler • ±5% voltage regulation and current regulation across line and load • 700-V start-up switch • 83-kHz maximum switching frequency enables low stand-by power charger designs • Resonant-ring valley-switching operation for highest overall efficiency • Frequency-dither to ease EMI compliance • Clamped gate-drive output for MOSFET • Overvoltage, low-line, and overcurrent protection functions • Prog