Transcription of AN12.14 Remote Thermal Sensing Diode Selection Guide
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AN12.14 Remote Thermal Sensing Diode Selection Guide
2014 Microchip Technology application note is aimed at designers who buildsystems that use Thermal sensors with Remote diodes;specifically, Remote diodes that are discrete bipolarjunction transistors (BJTs). Information presented here organizes important criteriafor selecting the Remote Sensing Diode to use withMicrochip's high accuracy, low cost Remote diodethermal sensors. Microchip does produce temperature sensors that aredesigned to work specifically with CPU Thermal , these discussions are about selecting an appropri-ate BJT, as well as providing a list of acceptable BJTs,several are this application note, the phrase remotediode-connected transistor refers to a discrete, Diode -connected (Base-Collector junction shorted) application note assumes
2014 Microchip Technology Inc. DS00001838A-page 3 AN12.14 Forward Current Gain (beta or h FE) A typical temperature sensor forces two fixed currents
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