PMP7902

1.25W Isolated Flyback Converter for Analog/Digital Power

PMP7902

Design files

Overview

PMP7902 is an Isolated Flyback converter utilizing the LM5001 non-synchronous current-mode regulator I.C.  The design accepts an input voltage of 4.5V to 5.5V and provides an isolated 5V output capable of supplying 0.25A of current to the load.  The design uses an off-the-shelf VERSAPAC transformer, providing 500V of operational isolation between primary and secondary.  A precision shunt regulator provides a tight control of the output voltage using an optocoupler to cross the isolation barrier.

Features
  • Isolated output
  • Uses standard off-the-shelf transformer
  • Regulated output using precision shunt on secondary
  • Low-profile design using all ceramic capacitors
  • Integrated switching MOSFET
  • Built-in over-current protection
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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.

TIDU900.PDF (1066 K)

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

TIDRE18.PDF (114 K)

Detailed schematic diagram for design layout and components

TIDRE19.PDF (104 K)

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

TIDRE20.PDF (67 K)

Detailed overview of design layout for component placement

TIDRE21.PDF (101 K)

Detailed overview of design layout for component placement

TIDRE23.ZIP (347 K)

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

TIDCA36.ZIP (205 K)

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

TIDRE22.PDF (205 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 converters (integrated FET)

LM50013.1-75V Wide Vin, 1A Current Mode Non-Synchronous Switch Mode Regulator

Data sheet: PDF | HTML
Shunt voltage references

LMV431A1%, low-voltage (1.24-V) adjustable precision shunt regulator

Data sheet: PDF

Technical documentation

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Type Title Date
Test report PMP7902 Test Results Apr. 09, 2015

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