PMP31193

Three-phase input valley switching flyback with two outputs reference design

PMP31193

Design files

Overview

This reference design uses the UCC28742 flyback controller to generate two outputs, 23 V @ 1.0 A and 5.0 V @ 0.15 A, from a three-phase input. UCC28742 uses an optical coupler to regulate the output and to improve transient response. The valley-switching technique reduces switching losses and keeps the efficiency high.

Features
  • Resonant-ring valley-switching operation
  • Dual outputs of 23 V or 1.0 A and 5.0 V or 0.15 A
  • Three-phase AC input voltage of 332 VAC to 459 VAC
  • Output overvoltage and overcurrent protection
  • Complete tested design with available design files and test report
Output voltage options PMP31193.1 PMP31193.2
Vin (Min) (V) 332 332
Vin (Max) (V) 459 459
Vout (Nom) (V) 23 3.3
Iout (Max) (A) 1 .15
Output Power (W) 23 .495
Isolated/Non-Isolated Isolated Isolated
Input Type AC AC
Topology Flyback- Quasi Resonant Flyback- Quasi Resonant
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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
TIDT321.PDF (1863 K)

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

TIDMBB7.PDF (302 K)

Detailed schematic diagram for design layout and components

TIDMBB8.PDF (159 K)

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

TIDMBB9.PDF (226 K)

Detailed overview of design layout for component placement

TIDMBC1.ZIP (2234 K)

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

TIDCGD3.ZIP (134 K)

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

TIDMBC0.PDF (172 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

UCC28742High-Efficiency Flyback Controller with 1% Output regulation accuracy

Data sheet: PDF | HTML
Shunt voltage references

ATL431LILow-IQ programmable shunt regulator offered in an ultra-small DQN package

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 3-Phase Input Valley Switching Flyback With Two Outputs Reference Design PDF | HTML Jan. 17, 2023

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