24V/1.45A AC/DC Flyback PSU Optimized for Low AC Line Input Reference Design PMP7174 (ACTIVE)

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.


Description

This design is a compact, low AC line input (Maximum 130Vac) Flyback converter which provides a regulated and fully-isolated 24V@1.45A output. Featuring TI's LM5021 current mode controller working at 135kHz, the converter features fast start-up and delivers greater than 85% efficiency from 30-100% load. The overall solution is very compact at 2312sq.mm. footprint area.

Features
  • Delivers 35W output power at efficiency of 85.3% @ 85VAC, 86.6% @ 130VAC
  • 24V output compatible with standard industrial applications, less than 0.5% line/load regulation from no-load to full-load
  • 4kV galvanic isolation between input and output
  • 108mVpp ripple on output at 35W full-load condition
  • Passes conducted EMI emissions in compliance with EN55022
  • Ideal for Bias power supplies needed in industrial electronic equipment for building infrastructure, home automation etc.

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Test Data

Get results faster with test and simulation data that's been verified.

Download Test Data

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


Parametrics
 PMP7174.1
(Output Voltage 1)
Vin (Min) (V)85
Vin (Max) (V)130
Vout (Nom) (V)24
Iout (Max) (A)1.45
Output Power (W)34.8
Isolated/Non-IsolatedIsolated
Input TypeAC
TopologyFlyback- DCM

TI Devices (3)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM5021  AC-DC current mode PWM controller  Offline & isolated DC/DC controllers & converters  Sample & Buy Not Available
OPA170  36V, microPower, Rail-to-Rail Output, General Purpose Op Amp in MicroPackages  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
TLV431  1.5% Accuracy Low-Voltage Adjustable Precision Shunt Regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM5021 Download Download
Download Download
OPA170 Download Download
Download Download
Download Download
TLV431 Download Download
Download Download
Download -
Download Download
Download -

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 435 30 Oct 2014
Design files (3)
Title Type Size (KB) Date
ZIP 73 30 Oct 2014
PDF 25 30 Oct 2014
PDF 104 30 Oct 2014

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective 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 visit our Support page.

Technical articles