September 2007

Rev 2

1/13

AN1513

Application note

VIPower: 30 W SMPS using VIPer50A-E

Introduction

In a growing consumer market, cost effective solutions with good performances and

reliability able to meet energy saving international or local standards (Blue Angel) are

needed.

STMicroelectronics has, among its wide products portfolio, the VIPer product family offering

excellent solutions with all features to design SMPS suitable for consumer applications.

Thanks to the VIPower Technology, these devices combine on the same silicon chip a state-

of-the-art PWM control circuit along with an optimized high voltage avalanche rugged

Vertical Power MOSFET.

The benefits obtained using these devices are:

This document describes the results obtained from an off-line SMPS designed with

VIPer50A-E. It has been designed for European mains, providing 30 W on two outputs.

The main target of this application is total power consumption less than 1 W (Blue Angel

Norm) in standby mode delivering an output power of 400 mW.

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