Project Analog - April 2008 - (Page 17)

FETs and transistors. Such integration can synergistically provide a far greater range of functionalities than discrete products alone. Designers working in a wide range of electronics industries can make use of integrated MOSFETs. More and more companies are using them in consumer electronics such as DVD players, satellite TV receivers, highdefinition LCD and plasma televisions, stereos, game systems, and a wide range of electronic toys. Most designers would intuitively realize the need for integrated solutions in computers (especially notebooks and ultra-mobile PCs and computer peripherals such as modems and routers), but they are also highly valuable in GPS navigation systems, remote health monitors, casino games, robots, military communications and navigation systems, and even casino games. Integrated MOSFETs are ideal for use in portable battery-powered electronics, everything from cell phones, PDAs, and media players to flashlights, testing equipment and barcode scanners. Because batteries are heavy, increasing the power efficiency of portable electronics is one of the most important challenges facing designers who seek to make smaller, lighter devices. In cell phones, where component space and performance is critical, improving battery life by 1% can result in 5 more minutes of talk time for the user. A similar power efficiency/ use-time ratio applies to notebooks computers and media players. Therefore, integrated MOSFETs that combine drivers, buck converters, buck controllers, and FETs can be extremely useful to designers. These integrated devices are compact, thin, require little heat-sinking, and are much more cost-effective than discrete components. Better yet, they can be highly power-efficient. integrated solutions Several companies are producing integrated MOSFET solutions. For instance, Fairchild Semiconductor’s TinyBuck is the industry’s smallest 6-A synchronous dc/dc buck converter solution and has the Contents Viewpoint Calculating Power Dissipation Accelerating Amplifier Design Driving Power MOSFETs Analog news fig 1 Products such an thE tinyBuck froM fairchild sEMiconductor havE loW-ProfilE MlP PackagE Which rEPlacEs onE Buck controllEr, tWo drivErs, tWo fEts, and onE Boot diodE, rEQuiring 50% lEss sPacE. Microchip analog page MOSFET driver overview Sample center microchipDIRECT Reference designs/ app notes Technical training signers continue to create electronics that feature better optimization and performance? The solution is to take standard MOSFETs and integrate new features into them to create better components. integration advantages What kind of new performance advantages can designers find in integrated MOSFETs? A single integrated MOSFET can include the full functionality of analog controllers and drivers plus any of many different kinds of 17 · prOjECT ANAlOg · Apr 08 http://www.microchip.com http://www.microchip.com/analog http://www.microchip.com/analog http://www.microchip.com/mosfetdriver http://www.microchip.com/mosfetdriver http://sample.microchip.com/Default.aspx?testCookies=true http://www.microchipdirect.com/catalogselection.aspx?returnURL=default.aspx http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1469&filter1=function&redirects=appnotes http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1469&filter1=function&redirects=appnotes http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1423

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Project Analog - April 2008 Contents Viewpoint About Project Analog Sponsor Calculating Power Dissipation in a MOSFET Driver Accelerating Design of >50-W Class D Amplifiers Driving Power MOSFETs in Switch Mode Power Supplies Synergistic MOSFET Solutions Trends in MOSFET Gate Drivers Analog News—Analog news from multiple sources Enter to win an iPhone Contact Project Analog Sponsor Treelink Microchip Advanced Parts Selector (MAPS)

Project Analog - April 2008

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