PMP23558

240W AC/DC PSU Using GaN reference design

PMP23558

Design files

Overview

This reference design is a transition-mode, boost power factor correction (PFC) and half bridge LLC that accepts universal AC input and generates an isolated 24V, 10A output. The design utilizes LMG3622 GaN module on the primary side with integrated driver and current sense emulation for improved efficiency. This design achieves a full load efficiency of 93.62% at 90Vac input.

Features
  • Integrated current sense emulation in PFC stage (no shunt resistor required)
  • Peak efficiency of 95.96%
  • Full load efficiency of 93.62% at 90Vac input
Output voltage options PMP23558.1 PMP23558.2
Vin (Min) (V) 90 360
Vin (Max) (V) 264 410
Vout (Nom) (V) 390 24
Iout (Max) (A) .62 10
Output Power (W) 241.8 240
Isolated/Non-Isolated Non-Isolated Isolated
Input Type AC DC
Topology PFC- Boost Half Bridge- LLC
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

SLVT228.PDF (2967 KB)

Test results for the reference design, including efficiency graphs, test prerequisites and more

SLVMEJ9.PDF (345 KB)

Detailed overview of design layout for component placement

SLVMEK1.PDF (144 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

SLVMEK0.ZIP (16235 KB)

Files used for 3D models or 2D drawings of IC components

SLVC903.ZIP (1022 KB)

Design file that contains information on physical board layer of design PCB

SLVMEJ8.PDF (2797 KB)

PCB layer plot file used for generating PCB design layout

SLVMEJ7.PDF (409 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC280566-pin high performance CRM/DCM PFC controller

Data sheet: PDF | HTML
General-purpose op amps

OPA2170Dual, 36-V, 1.2-MHz, low-power operational amplifier

Data sheet: PDF | HTML
Gallium nitride (GaN) power stages

LMG3622650V 120mΩ GaN FET with integrated driver, protection and current sensing

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

UCC25661Wide VIN and VOUT 750KHz LLC controller with high-voltage startup

Data sheet: PDF | HTML
MOSFETs

CSD18540Q5B60-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.2 mOhm

Data sheet: PDF | HTML
Shunt voltage references

LM4040Fixed voltage, 45-µA, precision micropower shunt voltage reference

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report 240W AC/DC PSU Using GaN Reference Design Oct 21, 2025

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