pf_SynJet PAR20 LED Cooler Design Guide v1 0

PRODUCTDesignGuideVersion1.0July2009SynJet®PAR20LEDCoolerwithHeatSinkNuventix,theNuventixlogo,andSynJetaretrademarksorregisteredtrademarksofNuventix.Allotherbrandandproductnamesmaybetrademarksoftheirrespectivecompanies.Nuventix,Inc.4635BostonLaneAustin,TX78735©2008NuventixAllRightsReservedPhone:512-382-8100Fax:[phone]ContactSales:512-382-8100VersionHistoryDocumentName:SynJetPAR20LEDCoolerwithHeatSinkDesignGuideDocumentNumber:MKTG-DOC-00045VersionandDateChangesVersion1.0,July2009Initialrelease.NuventixJuly2009Page3TableofContentsChapter1:IntroductionAudience.........................................................................5RelatedDocuments.................................................................6Components......................................................................6SynJetPAR20LEDCoolerDriverBoard.................................................7SynJetPAR20LEDCooler..........................................................8Handling.........................................................................8Chapter2:ThermalDesignSynJetPAR20LEDCoolerAirflow.......................................................11UnrestrictedFlow..................................................................12Example1:TrackFixture..........................................................12Example2:PendantLight.........................................................13RestrictedFlow...................................................................14BlockingHeatSinkChannels..........................................................14AddingVentilation.................................................................15CeilingInstallations................................................................15ThermalInterfaceMaterial(TIM).......................................................16DesignConsultationandSupport.......................................................16Chapter3:AcousticDesignChapter4:MechanicalDesignLEDMounting....................................................................21MountingSurfaceforLEDs.........................................................21PowerWireRoutingforLEDsandSynJet...............................................22SynJetPAR20LEDCoolerAttachmenttoHeatSink........................................22HeatSinkAttachmenttoLuminaire.....................................................23IntegratingSynJetPAR20LEDCoolerwithCustomer-DesignedHeatSink...........................27Chapter5:ElectricalDesignRequirements....................................................................29CurrentWaveform.................................................................29ConnectionSpecifications............................................................30VariableLevelCoolingControl.........................................................30Disclaimer/Warranty.................................................................33ContactNuventix....................................................................33TableofContentsSynJetPAR20LEDCoolerwithHeatSinkDesignGuidePage4NuventixJuly2009NuventixJuly2009Page5Chapter1IntroductionTheSynJetPAR20LEDCoolerwithHeatSinkisapatented,highlyadaptable,quiet,activecoolingsolutionforthesolidstatelightingindustry.Speciallydesignedtoprovideactivecooling,theSynJetPAR20LEDCooler:allowsmaximumlumensoutputforlonglifeprovidesexcellentthermalmanagementprovideslowenergyconsumptioncandoubleortriplelumenoutputoverapassivecoolingsolutioninthesameformfactor.TheSynJetPAR20LEDCoolerisavailableinfourmodelsoptimizedforspecificcoolingenvironmentrequirements:SynJetPAR20LEDCooler,Standard20W,providesquiet,effectivecoolinginstandardluminairedesignenvironmentswithnormalairflowandwherelowacousticsareimportant.SynJetPAR20LEDCooler,HighPerformance24W,isoptimizedformaximumLEDcoolingand/orinarestrictedairflowenvironmentsuchasanenclosedboxwithlittleventing.Thismodelprovidesgreatercoolinginareaslesssensitivetothenominalincreaseinacousticsthattheadditionalflowcreates.SynJetPAR20LEDCooler,Silent16W,isoptimizedforLEDdesignswheresilentacousticsarerequiredinacompactpackage.ThismodelisperfectforslightlylowerpowerrequirementsbutstillmaintainingsmalldesignsSynJetPAR20LEDCooler,VariableCoolingControl,givesthedesignermultipleprogrammableperformancelevelsformaximumcoolingandpowerflexibility.ThedesignercanapplyanexternalcontrolinputsignaltomatchtheSynJetcoolingleveltotheenvironmentalrequirements.Theexternalcontrolsignalallowswitchingamonganyofthethreeperformancelevelsdescribedabove,plusanoffstate,whereairflowhalts,buttheelectronicsstillsensesthecontrolsignal.ThisdocumentisapplicabletoallfourmodelsoftheSynJetPAR20LEDCooler.AudienceTheaudienceforthisdesignguideistheluminairedesignteamtoinclude:thermalengineersmechanicalengineerselectricalengineersluminaireindustrialdesigners.Chapter1:IntroductionSynJetPAR20LEDCoolerwithHeatSinkDesignGuidePage6NuventixJuly2009SectionsofthisdocumentmayalsoprovidevaluableSynJetPAR20LEDCoolerapplicationbackgroundforthelumin