VIA Technologies EPIA-M Mini-ITX Manual de usuario descargar pdf (Pagina 3)

Mini-ITX Power Solutions Andrei Bulucea

Automotive Solutions Ituner Networks

DC-DC converters - 3 - Automotive Applications

Introduction

This article covers a series of mini-ITX micro power supply solutions focusing on operating VIA’s

mini-ITX boards in car environments. To be more precise, the ITPS power sequencer and

regulator are described in greater detail. Such power sequencer devices are vital in automotive

applications. Also, the article covers some Compact Flash embedded solutions, suitable for

environments where high vibrations and low power consumptions are a must.

Several schematics, and the micro-controller code are being released as Open Source for the

Mini-ITX community. We hope this will shed some light onto one of the most interesting and

challenging computing areas, the general-purpose automotive computing.

First, for the readers that are unfamiliar with the mini-ITX products, here is a brief introduction.

ITX, the Ultimate Form Factor

In late 1999, Via Technologies took the computing industry by storm with the introduction of the

mini-ITX form factor motherboards. The Mini-ITX main board is the ideal platform for an almost

unlimited variety of Extreme Value PC, Information Appliance, Set Top Box, Personal Video

Recorders, and Industrial PC designs. By using high level of integration previously available only

in embedded computers, and the ultra low power x86 processors VIA was able to break through

several frontiers at once:

The mini-ITX Form Factor

Measuring just 170 x 170 mm2, the mini-ITX is the smallest mass produced.

Fig 1.0 - The Mini-ITX form factor

Low Power Consumption

Consuming only 10 W, the EPIA boards broke the x86 power consumption records, while running

cooler than ever. For more information on power consumption measurements, please see the

Power Consumption Charts chapter.

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VIA Technologies EPIA-M Mini-ITX Manual de usuario Pagina 3