Home
Design & development
Reference designs

PMP20978

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

Design files

PMP20978

Design files

Overview

The PMP20978 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 PMP20978 power stage has over 140W/in^3 power density. The whole board weight is less than 230g. 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
Output voltage options PMP20978.1
Vin (Min) (V) 380
Vin (Max) (V) 400
Vout (Nom) (V) 48
Iout (Max) (A) 21
Output Power (W) 1008
Isolated/Non-Isolated Isolated
Input Type DC
Topology Half Bridge- Resonant
Download View video with transcript Video

Design files & products

Design files

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

download Test report — PMP20978
TIDUDX9.PDF (4484 KB)

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

download Assembly drawing — PMP20978
TIDRU01A.ZIP (298 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — PMP20978
TIDRTZ6A.ZIP (281 KB)

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

download CAD/CAE symbol — PMP20978
TIDRU07A.ZIP (8391 KB)

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

download Gerber file — PMP20978
TIDCE41A.ZIP (15182 KB)

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

download PCB layout — PMP20978
TIDRU04A.ZIP (1839 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — PMP20978
TIDRTZ1A.ZIP (535 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

AND gates

SN74LVC2G08-Q1 — Automotive, 2-ch, 2-input 1.65-V to 5.5-V 32-mA drive strength AND gate

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

OPA376 — Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

Data sheet: PDF | HTML
Linear & low-dropout (LDO) regulators

LP3985 — 150-mA, low-dropout voltage regulator with bypass & enable

Data sheet: PDF | HTML
AC/DC controllers

UCD7138 — Single-channel synchronous rectifier driver with body-diode conduction sensing

Data sheet: PDF | HTML
AC/DC controllers

UCD3138A — UCD3138A Highly Integrated Digital Controller for Isolated Power

Data sheet: PDF | HTML
Analog temperature sensors

LM20 — ±1.5°C Analog Output Temperature Sensor

Data sheet: PDF | HTML

Start development

Hardware development

Daughter card

LMG3410-HB-EVM — LMG3410R070 600-V 70-mΩ GaN half-bridge daughter card

The PMP20978 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 PMP20978 power stage has over 140W/in^3 power density. The whole board weight is less than 230g. With fixed 950kHz (...)

EVM user’s guide: PDF
Supported products & hardware

Supported products & hardware

Hardware development
Reference design
PMP20873 — 99% Efficient 1kW GaN-based CCM Totem-pole Power Factor Correction (PFC) Converter Reference Design PMP20978 — High Efficiency and Power Density 1kW Resonant Converter Reference Design with High Voltage GaN FET PMP21309 — 24-V/500-W resonant converter reference design with HV GaN FET PMP41006 — 1-kW reference design with CCM totem pole PFC and current-mode LLC realized by C2000™ and GaN PMP41043 — 1.6-kW reference design with CCM totem pole PFC and current-mode LLC realized by C2000 and GaN TIDA-010062 — 1-kW, 80+ titanium, GaN CCM totem pole bridgeless PFC and half-bridge LLC with LFU reference design TIDM-02008 — Bidirectional high density GaN CCM totem pole PFC using C2000™ MCU TIDM-1007 — High efficiency GaN CCM totem pole bridgeless Power Factor Correction (PFC) reference design
Evaluation board
LMG34XX-BB-EVM — LMG34xx GaN system-level evaluation motherboard for LMG341x Family
In stock
Limit:
Out of stock on TI.com
Not available on TI.com

LMG3410-HB-EVM — LMG3410R070 600-V 70-mΩ GaN half-bridge daughter card

close
Latest version
Version: null
Release date:
open-in-new

View all versions

Hardware development
Reference design
PMP20873 — 99% Efficient 1kW GaN-based CCM Totem-pole Power Factor Correction (PFC) Converter Reference Design PMP20978 — High Efficiency and Power Density 1kW Resonant Converter Reference Design with High Voltage GaN FET PMP21309 — 24-V/500-W resonant converter reference design with HV GaN FET PMP41006 — 1-kW reference design with CCM totem pole PFC and current-mode LLC realized by C2000™ and GaN PMP41043 — 1.6-kW reference design with CCM totem pole PFC and current-mode LLC realized by C2000 and GaN TIDA-010062 — 1-kW, 80+ titanium, GaN CCM totem pole bridgeless PFC and half-bridge LLC with LFU reference design TIDM-02008 — Bidirectional high density GaN CCM totem pole PFC using C2000™ MCU TIDM-1007 — High efficiency GaN CCM totem pole bridgeless Power Factor Correction (PFC) reference design
Evaluation board
LMG34XX-BB-EVM — LMG34xx GaN system-level evaluation motherboard for LMG341x Family
TI’s Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Top documentation Type Title Format options Date
* Test report PMP20978 Test Results Dec 4, 2017

Related design resources

Reference designs

REFERENCE DESIGN
PMP20306 — 200V to 400V Input (Nominal), Triple-Output Bias Supply with Input Voltage Sensing Reference Design

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support.

Disclaimer
See the important notice and disclaimer covering reference designs and other TI resources.