PMP20289

400V – 12V/500W High Frequency Resonant Converter Reference Design Using High Voltage GaN Devices

PMP20289

Design files

Overview

The PMP20289 was built and tested to verify the performance of a high frequency (>400kHz nominal switching frequency) LLC series resonant converter (LLC-SRC) implemented with Texas Instrument’s high voltage GaN FETs under nominal (390V to 12V) voltage conversion. The digital controller UCD3138A is used along with the UCD7138 SR controller to optimize LLC-SRC efficiency. TI’s high voltage direct drive GaNFET LMG3410 is used to enable fast switching and be able to minimize dead-time between half-bridge switches. The test results show that 96.8% peak efficiency is achieved at 24A load and 96.3% efficiency is achieved at 42A full load with a switching frequency over 350kHz in a 390V to 12V conversion.

Features
  • 400V – 12V/500W high frequency LLC series resonant converter
  • 350kHz resonant frequency and 500kHz switching frequency at 400V to 12V conversion
  • Utilize TI high voltage direct drive GaN FETs as input switches
  • Optimized LLC SR conduction with UCD7138/UCD3138A
  • Achieve peak 96.8% efficiency
Output voltage options PMP20289.1 PMP20289.2 PMP20289.3
Vin (Min) (V) 370 200 5.5
Vin (Max) (V) 400 400 9
Vout (Nom) (V) 12 7 5
Iout (Max) (A) 42 1 1
Output Power (W) 504 7 5
Isolated/Non-Isolated Isolated Isolated Isolated
Input Type DC DC DC
Topology Half Bridge- LLC Flyback- DCM Buck- Synchronous

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.

TIDUC81.PDF (4071 K)

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

TIDRN80.PDF (129 K)

Detailed schematic diagram for design layout and components

TIDRN81.PDF (86 K)

Detailed schematic diagram for design layout and components

TIDRN82.PDF (111 K)

Detailed schematic diagram for design layout and components

TIDRN83.PDF (1073 K)

Detailed schematic diagram for design layout and components

TIDRN84.PDF (129 K)

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

TIDRN85.PDF (111 K)

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

TIDRN86.PDF (49 K)

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

TIDRN87.PDF (151 K)

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

TIDRN88.PDF (89 K)

Detailed overview of design layout for component placement

TIDRN89.PDF (144 K)

Detailed overview of design layout for component placement

TIDRN90.PDF (67 K)

Detailed overview of design layout for component placement

TIDRN91.PDF (108 K)

Detailed overview of design layout for component placement

TIDRN98.ZIP (522 K)

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

TIDRN99.ZIP (2874 K)

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

TIDRNA0.ZIP (254 K)

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

TIDRNA1.ZIP (256 K)

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

TIDRNA2.ZIP (623 K)

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

TIDRNA3.ZIP (890 K)

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

TIDCCJ3.ZIP (236 K)

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

TIDCCJ4.ZIP (1728 K)

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

TIDCCJ5.ZIP (1442 K)

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

TIDCCJ6.ZIP (1313 K)

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

TIDCCJ7.ZIP (1318 K)

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

TIDCCJ8.ZIP (1697 K)

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

TIDRN92.PDF (1317 K)

PCB layer plot file used for generating PCB design layout

TIDRN93.PDF (1230 K)

PCB layer plot file used for generating PCB design layout

TIDRN94.PDF (893 K)

PCB layer plot file used for generating PCB design layout

TIDRN95.PDF (243 K)

PCB layer plot file used for generating PCB design layout

TIDRN96.PDF (247 K)

PCB layer plot file used for generating PCB design layout

TIDRN97.PDF (1362 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Digital power isolated controllers

UCD3138AUCD3138A Highly Integrated Digital Controller for Isolated Power

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS621633V-17V 1A Step-Down Converters with DCS-Control™

Data sheet document-pdfAcrobat PDF open-in-new HTML
Digital isolators

ISO7821Highest isolation rating, dual-channel, 1/1, reinforced digital isolator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Gallium nitride (GaN) ICs

LMG3410R070600-V 70mΩ GaN with integrated driver and protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Gallium nitride (GaN) ICs

LMG3411R050600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Gallium nitride (GaN) ICs

LMG3411R070600-V 70-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection

Data sheet document-pdfAcrobat PDF open-in-new HTML
Isolated DC/DC converters & modules

DCP021212Miniature, 2W Isolated Unregulated DC/DC Converters

Data sheet document-pdfAcrobat PDF
Linear & low-dropout (LDO) regulators

LP3985150-mA, low-dropout voltage regulator with bypass & enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
PWM controllers

UCC3813-4Economy low power BICMOS 1MHz current mode PWM with 12.5V/8.3V UVLO, 50% duty cycle, 0C to 70C

Data sheet document-pdfAcrobat PDF open-in-new HTML
SR & load share controllers

UCD7138Low-side Power MOSFET Driver With Body Diode conduction Sensing

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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Type Title Date
* User guide 400V In to 12V Out, 500W Using LMG3410 User Guide Aug. 17, 2016
* Test report PMP20289 Test Results Aug. 16, 2016
Technical article Power Tips: Improve power supply reliability with high voltage GaN devices Nov. 03, 2016
Technical article Power Tips: How GaN devices boost resonant converter efficiency Aug. 25, 2016

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