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High Efficiency and High Power Density 1kW Resonant Converter Reference Design with TI HV GaN FET
PMP20637
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Key Document

Description

This reference design is a high efficiency, high power density and light weight resonant converter reference design. It converts a 390V input to a 48V/1kW output. The PMP20637 power stage has over 140W/in^3 power density. The whole board weight is less than 210g. With fixed 950kHz switching frequency in steady state, 97.6% peak efficiency is achieved.  

Features
  • 390V - 48V/1kW high frequency resonant converter
  • 950kHz resonant frequency with less than 210g weight
  • Utilizes TI's high voltage GaN FETs as input switches
  • Optimized LLC SR conduction with UCD7138/UCD3138A
  • Power stage dimension: 2” x 2.1” x 1.7”
  • Achieves peak 97.6% efficiency

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Design Files

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Parametrics
 PMP20637.1
(Output Voltage 1)
Vin (Min) (V)380
Vin (Max) (V)400
Vout (Nom) (V)48
Iout (Max) (A)21
Output Power (W)1008
Isolated/Non-IsolatedIsolated
Input TypeDC
TopologyHalf Bridge- Resonant

TI Devices (13)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ISO7831  Highest isolation rating, triple-channel, 2/1, reinforced digital isolator  Isolation  Sample & Buy View Design Kits & Evaluation Modules
LM20  ±1.5°C Analog Output Temperature Sensor  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
LMG3410R070  600-V 70mΩ GaN with integrated driver and protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
LMG3411R050  600-V 50mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
LMG3411R070  600-V 70-mΩ GaN with integrated driver and cycle-by-cycle overcurrent protection  Power management  Sample & Buy View Design Kits & Evaluation Modules
LP3985  150-mA, low-dropout voltage regulator with bypass & enable  Power management  Sample & Buy View Design Kits & Evaluation Modules
OPA376  Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN6505B  Low-noise, 1-A, 420-kHz transformer driver with soft start for isolated power supplies  Power for signal isolators  Sample & Buy View Design Kits & Evaluation Modules
TPS62153  3–17V 1A Step-Down Converter in 3x3 QFN package  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
TPS62163  3V-17V 1A Step-Down Converters with DCS-Control™  Step-down (buck) regulators  Sample & Buy View Design Kits & Evaluation Modules
UCC3813-4  Economy low power BICMOS 1MHz current mode PWM with 12.5V/8.3V UVLO, 50% duty cycle, 0C to 70C  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
UCD3138A  UCD3138A Highly Integrated Digital Controller for Isolated Power  Digital power ICs  Sample & Buy View Design Kits & Evaluation Modules
UCD7138  Low-side Power MOSFET Driver With Body Diode conduction Sensing  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ISO7831 Download Download
Download
LM20 Download -
Download Download
LMG3410R070 Download Download
LMG3411R050 Download
LMG3411R070 Download Download
LP3985 Download Download
Download -
OPA376 Download Download
Download Download
Download Download
SN6505B Download Download
TPS62153 Download Download
TPS62163 Download Download
UCC3813-4 Download Download
Download Download
Download Download
UCD3138A Download
Download
Download

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Technical documentation

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Datasheet (2)
Title Type Size (KB) Date
PDF 1518 06 Apr 2020
PDF 1034 16 Jan 2020
User guide (1)
Title Type Size (KB) Date
PDF 3561 07 Jun 2017
Design files (24)
Title Type Size (KB) Date
ZIP 2766 07 Jun 2017
ZIP 849 07 Jun 2017
ZIP 2316 07 Jun 2017
ZIP 234 07 Jun 2017
ZIP 708 07 Jun 2017
ZIP 4087 07 Jun 2017
ZIP 748 07 Jun 2017
ZIP 520 07 Jun 2017
PDF 2063 07 Jun 2017
PDF 1331 07 Jun 2017
PDF 1313 07 Jun 2017
PDF 757 07 Jun 2017
PDF 550 07 Jun 2017
PDF 178 07 Jun 2017
PDF 178 07 Jun 2017
PDF 111 07 Jun 2017
PDF 29 07 Jun 2017
PDF 33 07 Jun 2017
PDF 29 07 Jun 2017
PDF 100 07 Jun 2017
PDF 312 07 Jun 2017
PDF 163 07 Jun 2017
PDF 181 07 Jun 2017
PDF 160 07 Jun 2017
Related Tools & Software

Reference Designs (1)

Name Part Number Tool Type
200V to 400V Input (Nominal), Triple-Output Bias Supply with Input Voltage Sensing Reference Design  PMP20306  Reference design 

Hardware development (1)

Name Part Number Tool Type
LMG3410R070 600-V 70-mΩ GaN half-bridge daughter card  LMG3410-HB-EVM  Daughter card 

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