PMP20634

12V/12W PSR Flyback Reference Design

PMP20634

Design files

Overview

The PMP20634 reference design is an isolated DCM flyback design that takes a universal line input 85VAC to 265VAC, and produces a 12V ouput capable of 12W loading. The design uses the UCC28730 controller that achieves ultra-low standby power at no load. It achieves 85% efficiency at high and low line, and measures 1in x 3in on a 2 layer board.

Features
  • Universal input, 85VAC to 265VAC
  • Achieves over 85% efficiency at low and high line
  • Optional, isolated-disable circuit available
  • Primary side regulation allows for simple design
  • 2-layer board, 1 oz copper, measuring 1in x 3in
Output voltage options PMP20634.1
Vin (Min) (V) 85
Vin (Max) (V) 265
Vout (Nom) (V) 12
Iout (Max) (A) 1
Output Power (W) 12
Isolated/Non-Isolated Isolated
Input Type AC
Topology 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
TIDUDC0A.PDF (1489 K)

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

TIDRRJ3A.PDF (192 K)

Detailed schematic diagram for design layout and components

TIDRRJ4A.PDF (154 K)

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

TIDRRJ5A.PDF (162 K)

Detailed overview of design layout for component placement

TIDRRJ7A.ZIP (635 K)

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

TIDCDK8A.ZIP (535 K)

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

TIDRRJ6A.PDF (472 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)

UCC28730Zero standby PSR flyback controller with CVCC and wake-up monitoring

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report 12-V, 12-W Primary-Side Regulated (PSR) Flyback Reference Design (Rev. A) PDF | HTML May 16, 2023

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