PMP20421

US Line (120VAC +/- 15%) Input, 12V/850mA Output Bias Supply Reference Design

PMP20421

Design files

Overview

The PMP20421 is a low cost bias supply reference design with 12V/850mA output from 120VAC input. This design uses BJT with UCC28722 primary-side regulation BJT controller and single layer PCB to reduce the overall BOM cost.

Features
  • 120VAC nominal (102VAC to 138VAC) 50/60Hz input to 12V/850mA output
  • Conduction EMI tested
  • Single layer PCB design
  • Flyback with bipolar junction transistor (BJT) switch
  • Test report available
Output voltage options PMP20421.1
Vin (Min) (V) 102
Vin (Max) (V) 138
Vout (Nom) (V) 12
Iout (Max) (A) .85
Output Power (W) 10.2
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- DCM
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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.

TIDUD67.PDF (3017 K)

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

TIDRQW3.PDF (102 K)

Detailed schematic diagram for design layout and components

TIDRQW4A.PDF (136 K)

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

TIDRQW5.PDF (82 K)

Detailed overview of design layout for component placement

TIDRQW7.ZIP (495 K)

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

TIDCDF3.ZIP (1227 K)

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

TIDRQW6.PDF (283 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)

UCC28722Low-Cost CVCC Flyback controller With primary-side regulation for bipolar Power Device

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP20421 Test Results May 16, 2017

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