PMP21842

12-V/500-W resonant converter reference design with HV GaN FET

PMP21842

Design files

Overview

This high-frequency resonant converter reference design regulates a 12-V output from a 380-V to 400-V input voltage range using a resonant tank with 500 kHz resonant frequency. A peak efficiency of 96.0% (bias supply included) is achieved with this design using our high-voltage GaN device along with UCD3138A and UCD7138 to optimize the dead time and synchronous rectifier (SR) conduction.

Features
  • 500 kHz resonant frequency
  • Nominal 390-V to 12-V/500-W conversion
  • 96.0% efficiency at 390-V input with bias supply included
  • Power stage X Y dimensions of 1.9" x 3"
Output voltage options PMP21842.1
Vin (Min) (V) 380
Vin (Max) (V) 400
Vout (Nom) (V) 12
Iout (Max) (A) 42
Output Power (W) 504
Isolated/Non-Isolated Isolated
Input Type DC
Topology Full Bridge- Resonant
Industrial

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.

TIDT088.PDF (3543 K)

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

TIDRYZ1.ZIP (254 K)

Detailed schematic diagram for design layout and components

TIDRYZ2.ZIP (153 K)

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

TIDRYZ3.PDF (119 K)

Detailed overview of design layout for component placement

TIDRYZ5.ZIP (584 K)

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

TIDCFA4.ZIP (1731 K)

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

TIDRYZ4.PDF (714 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

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UCD3138AUCD3138A Highly Integrated Digital Controller for Isolated Power

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Gallium nitride (GaN) ICs

LMG3410R070600-V 70mΩ GaN with integrated driver and protection

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Gallium nitride (GaN) ICs

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

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Gallium nitride (GaN) ICs

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

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Linear & low-dropout (LDO) regulators

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

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N-channel MOSFETs

CSD18510Q5B40-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 0.96 mOhm

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Precision op amps (Vos<1mV)

OPA376Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

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SR & load share controllers

UCD7138Low-side Power MOSFET Driver With Body Diode conduction Sensing

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Technical documentation

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Type Title Date
* Test report 12-V/500-W resonant converter reference design with HV GaN FET Feb. 04, 2019

Related design resources

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REFERENCE DESIGN
PMP21309 24-V/500-W resonant converter reference design with HV GaN FET

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