英飞凌IGBT驱动保护培训资料

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1、Over-temperature,Over–current&Over-voltageprotectioninIGBTapplicationOver–temperatureTypeAmbienttemperature-TaHeatsinktemperature-ThBaseplatetemperature-TcJunctiontemperature-TjInlet/outlettemperatureWithbaseplateThThTTreferenceThchWithoutbaseplate22.05.2007ForinternaluseonlyCopyright©Inf

2、ineonTechnologies2007.Allrightsreserved.Page2Over–temperatureTa–dependsonexternalcoolingapplication,limitofcomponentsinthecabinetinside.Sometimes,MaxallowableTa=50oC,or40oC(typical)Th-dependsonthecoolingcapabilityanddesignforthepowerdissipationbasedontherealapplication.Tc–dependsoncasetempe

3、rature,anddeterminedbythenominalcurrentdefinition(Tc=100oC,or85oC)Tj-max.allowableoperationalTvjop(125oC/150oC).22.05.2007ForinternaluseonlyCopyright©InfineonTechnologies2007.Allrightsreserved.Page3ModuleNTCfortemperaturemeasurementNTC-temperatureforamodulewithaNTC-temperatureforamodulebase-p

4、latewithoutabase-plateTT10KPRTT15KPRNTCJIGBTmaxthJCNTCJIGBTmaxthJCCorrectionfactorbasedontheheatspreadofthemodule-constructionTJIGBTTNTCTJIGBTTNTCCeramicTTHeatconductingpasteThTChCThecorrectionfactorcouldbedifferentfordifferentmodules.ItdependsonthepositionoftheNTC.22.05.2007Forinterna

5、luseonlyCopyright©InfineonTechnologies2007.Allrightsreserved.Page4ModuleNTCvs.TjFP75R12KE3545353T[°C]JT[°C]NTC3458484122.05.2007ForinternaluseonlyCopyright©InfineonTechnologies2007.Allrightsreserved.Page5FailureOverTemperatureSolderbelowtheIGBTispouredoutLargeAreasoftheAluminumLayeraremolten.T

6、ypicalBeads.BubblesintheImideslayer22.05.2007ForinternaluseonlyCopyright©InfineonTechnologies2007.Allrightsreserved.Page6SafetyisolationTemperaturemeasurement┐IsolatedSigma-DeltaconverterExample:AD7400Sigma-Deltamodulator┐HighprecisionV-Fconverter+OptocouplerExample:LM231┐Highprecisiontimer+O

7、ptocouplerExample:SA555┐LinearoptocouplerExample:IL30022.05.2007ForinternaluseonlyCopyright©InfineonTechnologies2007.Allrightsreserved.Page7SafetyIsolation–LinearoptocouplerBuilt-inNTCThermistorinModule22.05.2007ForinternaluseonlyCopyri