PMP21549

75/150-W Flyback reference design for audio applications

PMP21549

Design files

Overview

This flyback reference design uses the cost effective LM5021 AC-DC Current-Mode PWM Controller. Universal line input is converted to a 28-V output. The supply is designed for sustained operation at 75-W and is rated for peaks up to 150-W. This range is ideal for the power requirements of audio signals. It is also tested for conductive EMI compliance.

Features
  • 90-VAC - 265-VAC input to 28-V/5.5-A isolated output
  • Up to 89% efficiency at full load without the need for a synchronous rectifier
  • Data provided for conducted emissions tests
Output voltage options PMP21549.1
Vin (Min) (V) 90
Vin (Max) (V) 265
Vout (Nom) (V) 28
Iout (Max) (A) 5.5
Output Power (W) 154
Isolated/Non-Isolated Isolated
Input Type AC
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.

TIDT082.PDF (2921 K)

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

TIDRYU0A.PDF (186 K)

Detailed schematic diagram for design layout and components

TIDRYU1.PDF (61 K)

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

TIDRYU2A.PDF (165 K)

Detailed overview of design layout for component placement

TIDM553.ZIP (916 K)

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

TIDM552.PDF (851 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)

LM502130V, 1MHZ current mode PWM controller

Data sheet: PDF | HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report 75/150-W Flyback reference design for audio applications Jan. 25, 2019

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