DER-187: 13V @ 2.69A, 90 ~ 264 VAC in

Summary

This engineering report describes an LCD monitor power supply utilizing the TOPSwitch®-HX TOP257EN in a universal input, single output (13 V, 2.69 A) fly-back converter configuration.

This document contains specifications for the power supply and transformer, the design schematic, bill of materials, printed circuit board layout, and power supply performance specifications.

This power supply design uses the TOP257EN in a flyback converter configuration to obtain a single 13 V, 2.69 A output from a universal voltage input (90 – 264 VAC). A TL431 voltage reference (shunt regulator) IC provides the tight regulation required in this design.

Specifications

Manufacturer Power Integrations
Category AC/DC and DC/DC Conversion
Sub-Category AC/DC SMPS - Single Output
Eval Board Board not Stocked
AC Voltage 115 V
230 V
Universal (115 / 230V)
Outputs and Type 1 Isolated
Voltage Out 13 V
Current Out 2.69 A
Output Power 35 W
Features Current Limit (Adj. or Fixed)
Open Circuit Protection
Over Voltage Protection
Thermal Protection
Under Voltage Protection, Brown-Out
Efficiency @ Conditions >85%, 115 ~ 264 VACin
No-load Input Power @ Voltage 180 mW @ 264 V
Switching Frequency 132 kHz
Internal Switch Yes
Component Count + Extras 46 + 4
Voltage In 90 ~ 264 VAC
Design Author Power Integrations
Application / Target Market LCD TV / Monitor
Main I.C. Base Part TOP257
Date Created By Author 2008-06
Date Added To Library 2014-06

Support Documents & Media

TOP252 - 262 - Datasheet DER-187 - User Guide

Media

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