UCC28740 - Constant-Current Flyback Controller

Texas Instruments

UCC28740 Datasheet Preview — Preview of UCC28740 PDF

Datasheet Details

Part number	UCC28740
Manufacturer	Texas Instruments ↗
File Size	1.37 MB
Description	Constant-Current Flyback Controller
Datasheet	UCC28740-etcTI.pdf

UCC28740 Product details

Description

The UCC28740 isolated-flyback power-supply controller provides Constant-Voltage (CV) using an optical coupler to improve transient response to largeload steps.

Features

1 Less than 10-mW No-Load Power Capability.
Optocoupled Feedback for CV, and Primary-Side Regulation (PSR) for CC.
Enables ±1% Voltage Regulation and ±5% Current Regulation Across Line and Load.
700-V Startup Switch.
100-kHz Maximum Switching Frequency Enables High-Power-Density Charger Designs.
Resonant-Ring Valley-Switching Operation for Highest Overall Efficiency.
Frequency Dithering to Ease EMI Compliance.
Clamped Gate-D.

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Published: Apr 25, 2020 |