PMP21516

50/100-W Flyback reference design for audio applications

PMP21516

Design files

Overview

This reference design implements a dual-output flyback using the cost effective LM5021 AC-DC Current-Mode PWM Controller. Universal line input is converted to both 24-V and 6-V outputs. The TLV1117 Fixed LDO Voltage Regulator converts the 6-V output to 3.3 V and can handle 0.2 A of current. The supply is designed for sustained operation at 50 W and is rated for peaks up to 100 W, which is ideal for the power requirements of audio signals.

Features
  • Universal line input to 24-V 2.25-A/4.5-A isolated output
  • Secondary output through an LDO outputs 3.3-V/200-mA with reduced noise
  • Up to 89% efficiency at full load without the need for a synchronous rectifier
  • Operates at 50 W of sustained power and 100 W peaks
Output voltage options PMP21516.1
Vin (Min) (V) 85
Vin (Max) (V) 264
Vout (Nom) (V) 24
Iout (Max) (A) 4.5
Output Power (W) 108
Isolated/Non-Isolated Isolated
Input Type AC
Topology Flyback- Non Sync

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.

TIDT086.PDF (3256 K)

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

TIDRYX8A.PDF (133 K)

Detailed schematic diagram for design layout and components

TIDRYX9A.PDF (295 K)

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

TIDRYY0.PDF (127 K)

Detailed overview of design layout for component placement

Products

Includes TI products in the design and potential alternatives.

Flyback controllers

LM502130V, 1MHZ current mode PWM controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
Linear & low-dropout (LDO) regulators

TLV1117800-mA, 15-V, linear voltage regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML
Shunt voltage references

TL431Adjustable precision shunt regulator

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

star
= Top documentation selected by TI
No results found. Please clear your search and try again.
View all 1
Type Title Date
* Test report 50/100-W Flyback reference design for audio applications Feb. 04, 2019

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​

Videos