Texas Instruments UCG28826EVM-093 User Manual

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EVM User's Guide: UCG28826EVM-093
Using the UCG28826EVM-093 65W USB-C PD High-
Density GaN
Integrated Quasi-Resonant Flyback Converter
Description
The UCG28826EVM-093 is a 65W USB-C PD
evaluation module (EVM) for evaluating an off-line
GaN integrated quasi-resonant flyback adapter 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 UCG28826EVM-093
converts input voltage of 90V
to a selectable USB-C PD output voltage 20V
with a max 3.25A, and to 5V
with a max 3.00A output current rating. The main
device used in this design is the UCG28826 with
integrated 650V GaN FET and controller in 5mm x
5mm package.
Get Started
1. Read and study this user's guide completely
before evaluating
2. Order the UCG28826EVM-093
step 1 met
3. Setup and test the UCG28826EVM-093
guide instructions
Figure 1-1. UCG28826EVM-093 (Top view)
SLUUD60A – OCTOBER 2024 – REVISED FEBRUARY 2025
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to 264V down
RMS RMS
,
DC
, 9V , and 15V ,
DC DC DC
for evaluation if
per user's
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Features
• 93-95% Efficiency under full-load operation over
entire input voltage range
3
• 2.8W/cm (3.9cm x 3.43cm x 1.71cm) Power
density enabled by 140kHz maximum switching
frequency
• Self-bias and auxless-sense, Integrated current
sense, Integrated HV startup and Integrated X-cap
discharge enable lowest BOM cost by integration
• Comprehensive protection features including OVP,
OTP, Short circuit and overcurrent protection and
brown-in/out protection
• USB-C output enables full system-level evaluation
for end-equipments like adapters, notebook
chargers, USB wall outlets
Applications
• USB-C PD power adapters
• AC-to-DC or DC-to-DC auxiliary power supplies
• High-density AC-to-DC converters / adapters for
notebook computers, tablet computers, TV, and
set-top box
• USB-C PPS power adapters
Figure 1-2. UCG28826EVM-093 (Bottom view)
Using the UCG28826EVM-093 65W USB-C PD High-Density GaN
Integrated Quasi-Resonant Flyback Converter
Description
1