Low Voltage Power MOSFETs Design, Performance and Applications
Low Voltage Power MOSFETs focuses on the design of low voltage power MOSFETs and the relation between the device structure and the performance of a power MOSFET used as a switch in power management applications. This SpringerBriefs close the gap between d
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Volume 7
For further volumes: http://www.springer.com/series/8884
Jacek Korec
Low Voltage Power MOSFETs Design, Performance and Applications
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Jacek Korec Texas Instruments Power Stage BU 116 Research Drive Bethlehem, PA 18015, USA [email protected]
ISSN 2191-530X e-ISSN 2191-5318 ISBN 978-1-4419-9319-9 e-ISBN 978-1-4419-9320-5 DOI 10.1007/978-1-4419-9320-5 Springer New York Dordrecht Heidelberg London Library of Congress Control Number: 2011924343 © Jacek Korec 2011 All rights reserved. This work may not be translated or copied in whole or in part without the written permission of the publisher (Springer Science+Business Media, LLC, 233 Spring Street, New York, NY 10013, USA), except for brief excerpts in connection with reviews or scholarly analysis. Use in connection with any form of information storage and retrieval, electronic adaptation, computer software, or by similar or dissimilar methodology now known or hereafter developed is forbidden. The use in this publication of trade names, trademarks, service marks, and similar terms, even if they are not identified as such, is not to be taken as an expression of opinion as to whether or not they are subject to proprietary rights. Printed on acid-free paper Springer is part of Springer Science+Business Media (www.springer.com)
Introduction
This is not intended to be a reference book. This is not intended to be a student book. This script should help newcomers to the power management community like young device and circuit designers, product engineers, and marketing staff entering into the field of low voltage power MOSFETs and their applications. The goal is to show the relations between the way how a power MOSFET has been designed and the performance of this device in different applications. No power device expertise is required from the reader. Just a general electric engineering background should be enough to find fun in understanding why some MOSFETs are better than other, and how to use a better MOSFET performance to improve power management products. An ideal MOSFET should have zero conduction resistance and zero switching losses. This is trivial. How to approach the ideal is not trivial as demonstrated by the many MOSFET generations introduced into the market since early 1980s. Basically, a power MOSFET is a piece of Silicon integrating a large number of basic cells acting in parallel. It has three terminals: Source and Drain being main power connectors, and a Gate used as the control to switch the current. Usually, the Silicon chip is molded into a plastic package which has exposed leads acting as the mentioned terminals. The performance of the package is as important as the performance of the Silicon device itself. Package should add minimum on serial resistance, should have minimal parasitic inductance, and a low thermal impedance allowing easy dissipation of the generated heat. In spite of the importance of package characteristics, this script will focus on the design of the Silicon device itself and package performance will be treated marginall
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