PMP22951

54-V, 3-kW phase-shifted full-bridge with active clamp reference design

PMP22951

Design files

Overview

is reference design is a GaN-based 3-kW phase-shifted full-bridge (PSFB) converter. This design uses an active clamp on the secondary side to minimize the voltage stress on the synchronous rectifier (SR) MOSFETs enabling the use of lower voltage rating MOSFETs that possess better figure-of-merit (FoM). PMP22951 uses 30-mΩ GaN on the primary side and 100-V, 1.8-mΩ GaN for the synchronous rectifiers. PSFB control is realized using TMS320F280049C real-time microcontroller. The PSFB converter operates at 140-kHz switching frequency and achieves a peak efficiency of 97.45% with 385-V input.

Features
  • Peak efficiency of 97.45% at 385-V input
  • Active clamp for minimizing voltage stress on SR MOSFETs enabling use of better FoM devices
  • All GaN solution
Output voltage options PMP22951.1
Vin (Min) (V) 350
Vin (Max) (V) 400
Vout (Nom) (V) 54
Iout (Max) (A) 56
Output Power (W) 3024
Isolated/Non-Isolated Isolated
Input Type DC
Topology Full Bridge- Phase Shifted
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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.

PDF | HTML
TIDT331.PDF (1152 K)

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

TIDMBS8A.ZIP (489 K)

Detailed schematic diagram for design layout and components

TIDMBS9A.ZIP (113 K)

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

TIDMBT0.ZIP (957 K)

Detailed overview of design layout for component placement

TIDMBT2.ZIP (40428 K)

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

TIDCGG8.ZIP (4863 K)

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

TIDMBT1.ZIP (1229 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Analog current-sense amplifiers

INA293-4-V to 110-V, 1.3-MHz, ultra-precise current sense amplifier

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F280045C2000™ 32-bit MCU with 100 MHz, FPU, TMU, 256 KB flash, PGAs, SDFM

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F280049C2000™ 32-bit MCU with 100-MHz, FPU, TMU, 256-kb Flash, CLA, PGAs, SDFM

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F280049CC2000™ 32-bit MCU with 100-MHz, FPU, TMU, 256-kb Flash, CLA, InstaSPIN-FOC, CLB, PGAs, SDFM

Data sheet: PDF | HTML
Digital isolators

ISO7721Robust EMC, dual-channel, 1/1, reinforced digital isolator

Data sheet: PDF | HTML
Gallium nitride (GaN) power stages

LMG3522R030650-V 30-mΩ GaN FET with integrated driver, protection and temperature reporting

Data sheet: PDF | HTML
Half-bridge drivers

LMG12101.5-A, 3-A, 200-V half bridge gate driver, 5-V UVLO and programmable dead-time for GaNFET and MOSFET

Data sheet: PDF | HTML
Ideal diode/ORing controllers

LM74803-V to 65-V back-to-back NFET ideal diode controller, -55°C to 125°C

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

TLV713150-mA, capacitor-free low-dropout voltage regulator with enable

Data sheet: PDF | HTML
Low-side drivers

UCC276114-A/6-A single-channel gate driver with 4-V UVLO and 5-V regulated output

Data sheet: PDF | HTML
Thermistors

TMP611%, 10-kΩ linear thermistor in 0402, 0603/0805 and through hole packages

Data sheet: PDF | HTML
Transformer drivers

SN6505BLow-noise, 1-A, 420-kHz transformer driver with soft start for isolated power supplies

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 54-V, 3-kW, Phase-Shifted Full Bridge With Active Clamp Reference Design PDF | HTML Aug. 24, 2023

Related design resources

Software development

SOFTWARE DEVELOPMENT KIT (SDK)
C2000WARE-DIGITALPOWER-SDK DigitalPower software development kit (SDK) for C2000™ MCUs

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