UCG28824EVM-124

UCG28824 45W QR flyback evaluation module

UCG28824EVM-124

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Overview

The UCG28824EVM-124 is a 45W USB-C PD evaluation module (EVM) for evaluating an off-line GaN integrated quasi-resonant flyback converter for AC/DC adapters, chargers, USB wall outlets, and other applications. The EVM meets CoC Tier 2 and DoE Level 6 efficiency requirements. The EVM is intended for evaluation purposes and is not intended to be an end product. The UCG28824EVM-124 converts input voltage of 90VRMS to 264VRMS down to a selectable USB-C PD output voltage of 5VDC, 9VDC, 15VDC, or 20VDC. This EVM can also be configured to produce a fixed output voltage in the range of 5VDC to 24VDC. The EVM is designed to deliver 3.00A of maximum output current up to 15VDC and 45W of maximum output power for the output voltage in the range of 15VDC to 24VDC. The main device used in this design is the UCG28824 with integrated 750V GaN FET and controller in 5mm × 5mm package.

Features
  • 93-95% efficiency under full-load operation over entire input voltage range
  • 2W/cm3 (5.4cm × 2.67cm × 1.6cm) power density enabled by 140kHz maximum switching frequency
  • Self-bias and auxless-sense, integrated current sense, integrated HV start-up and integrated X-cap discharge enable lowest BOM cost by integration
  • Comprehensive protection features including OVP, OTP, short circuit, overcurrent, and brown-in/out protections
  • USB-C output enables full system-level evaluation for end-equipments like adapters, notebook chargers, and USB wall outlets
AC/DC & DC/DC converters (integrated FET)
UCG28824 Self-biased high frequency QR flyback converter with integrated GaN (45W)
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UCG28824EVM-124 — UCG28824 45W QR flyback evaluation module

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UCG28824EVM-124 UCG28824 45W QR flyback evaluation module

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Technical documentation

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Type Title Date
* EVM User's guide Using the UCG28824EVM-124 45W High-Density GaN Integrated Quasi-Resonant Flyback Converter PDF | HTML Dec 11, 2025
Certificate UCG28824EVM-124 EU Declaration of Conformity (DoC) Nov 14, 2025

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