PMP20278

37-57Vdc Input, 5V/4A Output Cost Optimized Flyback Converter Reference Design

PMP20278

Design files

Overview

The LM5021 provides a cost effective solution for controlling an isolated flyback converter.  Diode rectification is used to keep cost low while maintaining good efficiency.  This converter is ideal for any cost sensitive telecom or PoE application.

Features
  • Diode recitifcation for low cost
  • Good efficiency (85% at 4A)
  • 1500Vrms isolation
Output voltage options PMP20278.1
Vin (Min) (V) 37
Vin (Max) (V) 57
Vout (Nom) (V) 5
Iout (Max) (A) 4
Output Power (W) 20
Isolated/Non-Isolated Isolated
Input Type DC
Topology Flyback- Non Sync
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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.

TIDUCB3.PDF (766 K)

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

TIDRNJ8.PDF (246 K)

Detailed schematic diagram for design layout and components

TIDRNJ9.PDF (59 K)

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

TIDRNK0.PDF (168 K)

Detailed overview of design layout for component placement

TIDCCM5.ZIP (330 K)

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

Products

Includes TI products in the design and potential alternatives.

Flyback controllers

LM502130V, 1MHZ current mode PWM controller

Data sheet: PDF | HTML
Shunt voltage references

TLV431A1% accuracy, low-voltage, adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP20278 Test Results Sep. 07, 2016

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