Transcription of Digital Isolator Design Guide (Rev. A) - Texas …
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Developer's GuideSLLA284A January2009 RevisedNovember2014 DigitalIsolatorDesignGuideThisdesignguid ehelpssystemdesignersof galvanicallyisolatedsystemsto begindesigningwith TI'sbroadportfolioof digitalisolatorsandisolatedfunctionsin the ISO78xxfamilyof ,the ISO73xxfamilyof 3-kVrmsdigitalisolators,and the ISO71xxfamilyof , documentexplainsthebasicoperatingprincip leof an Isolator ,suggestswhereto placeit withina systemdesign,andrecommendsguidelinesfor an electromagneticcompatible(EMC) availablein the respectiveproductdatasheetsand the (OOK) DigitalIsolatorsand of Figures1 ConceptualBlockDiagramof On-OffKeying(OOK) a :Z0~ a Functionof the w/h a January2009 RevisedNovember2014 DigitalIsolatorDesignGuideSubmitDocument ationFeedbackCopyright 2009 2014, 45 BendsInsteadof 90 a Singleand a a Singleand a a of Tables1 DigitalIsolatorFamiliesand < w/d < a meansof preventingdc and unwantedac currentsbetweentwo partsof a system,whileallowingsignaland powertransferbetweenthosetwo semiconductorICsusedfor isolationare general,an isolatorcan be abstractedas comprisingof a high-voltageisolationcomponentor barrier,a transmitter(TX)to couplesignalinto one side of the isolationcomponent,and a receiver(RX)to convertthe signalavailableon the otherside of the isolationcomponentinto 's isolatorsuse SiO2(silicondioxide)based,high-voltageca pacitorst
Developer's Guide SLLA284A–January 2009–Revised November 2014 Digital Isolator Design Guide This design guide helps system designers of galvanically isolated systems to begin designing with TI's
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