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

(ACTIVE) 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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Schematic/Block Diagram

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Design Guide

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Bill of Materials (BOM)

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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 (11)

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  High-Immunity, 5.7kVRMS Reinforced Triple-Channel 2/1 Digital Isolator, 100Mbps  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  Gallium nitride (GaN)  Not Available View Design Kits & Evaluation Modules
LP3985  Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
OPA376  Precision, Low Noise, Low Iq Operational Amplifier  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
SN6505B  Low-Noise 1-A , 420kHz Transformer Driver for Isolated Power Supplies  Isolation  Sample & Buy View Design Kits & Evaluation Modules
TPS62153  3–17V 1A Step-Down Converter in 3x3 QFN package  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
TPS62163  3V-17V 1A Step-Down Converters with DCS-Control™  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
UCC3813-4  Low Power Economy BiCMOS Current Mode PWM  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
UCD3138A  UCD3138A Highly Integrated Digital Controller for Isolated Power  Digital power  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
SOIC (DWW)| 16 Download
LM20 Download -
Download Download
LMG3410R070 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
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 3561 07 Jun 2017 164
Design files (24)
Title Abstract Type Size (KB) Date Views
ZIP 2766 07 Jun 2017 7
ZIP 849 07 Jun 2017 3
ZIP 2316 07 Jun 2017 3
ZIP 234 07 Jun 2017 3
ZIP 708 07 Jun 2017 28
ZIP 4087 07 Jun 2017 27
ZIP 748 07 Jun 2017 18
ZIP 520 07 Jun 2017 24
PDF 2063 07 Jun 2017 36
PDF 1331 07 Jun 2017 22
PDF 1313 07 Jun 2017 18
PDF 757 07 Jun 2017 22
PDF 550 07 Jun 2017 18
PDF 178 07 Jun 2017 15
PDF 178 07 Jun 2017 17
PDF 111 07 Jun 2017 15
PDF 29 07 Jun 2017 30
PDF 33 07 Jun 2017 30
PDF 29 07 Jun 2017 30
PDF 100 07 Jun 2017 29
PDF 312 07 Jun 2017 74
PDF 163 07 Jun 2017 120
PDF 181 07 Jun 2017 107
PDF 160 07 Jun 2017 74
Related Tools & Software

Reference Designs  ( 1 )

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
LMG3410 Daughter Card  LMG3410-HB-EVM  Evaluation Modules & Boards 

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