Package Thermal Resistance Values (Theta JA, Theta JC) for Temperature Sensors a

Abstract:Twocommonthermal-resistancevaluesmeasuredforICpackagesarejunctiontoambient(ThetaJA)andjunctiontocase(ThetaJC).Theseparametersareusefulforcalculatingmaximumpowerdissipationandself-heating,andforcomparingpackagetypes.ThetaJAandThetaJCvaluesarepresentedhereforselectMaximtemperaturesensorsand1-Wire®devices.Examplesforcalculatingthevaluesaregiven.PackageThermalResistanceValues(ThetaJA,ThetaJC)forTemperatureSensorsand1-WireDevicesNov16,2006Abstract:Twocommonthermal-resistancevaluesmeasuredforICpackagesarejunctiontoambient(ThetaJA)andjunctiontocase(ThetaJC).Theseparametersareusefulforcalculatingmaximumpowerdissipationandself-heating,andforcomparingpackagetypes.ThetaJAandThetaJCvaluesarepresentedhereforselectMaximtemperaturesensorsand1-Wiredevices.Examplesforcalculatingthevaluesaregiven.IntroductionManagingheatinelectronicsystemsiscrucialforensuringproductreliability.Integratedcircuits(ICs)exposedtohightemperaturescanfailormalfunctioninthefield,thusrequiringcostlyrepairorredesign.Typicalthermal-resistanceparametersgivet