STMicroelectronics AN2749 Application Note

This document is a 40 W switch-mode power supply application note, based on L6566B, can be used for set-top box, DVD and more.

Brand: STMicroelectronics
Document type: Application Note
Language: English
Pages: 34
File format: PDF
File size: 1.8 MB
Published: 06 August, 2012
Updated: 30 September, 2023
MD5 checksum: 263785056240D99424DD81BBBD1CE5E8
PDF: STMicroelectronics AN2749 Application Note PDF

About this manual

The document details a 40 W switch-mode power supply (SMPS) designed as a demonstration board. It is dedicated to set-top boxes, DVD players, and auxiliary supplies for flat TVs or small screen equipment. The design accepts a wide input voltage range of 90 to 265 Vrms and delivers four specific output voltages.

What's inside

Main characteristics
Circuit description
Functional checking
Conducted noise measurements
Thermal measures
Bill of material
PCB layout
Transformer specifications

Frequently asked questions

What input voltage range does this demonstration board accept?

The board accepts a wide range of input voltages from 90 to 265Vrms.

What is the maximum power rating of this switch-mode power supply?

The power supply is rated for a maximum output of 40 W.

What is the nominal switching frequency of the converter?

The nominal switching frequency is 62 kHz.

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