Other Parts Discussed in Thread: TMP451
Please help me mark the location of remote temperature and local temperature on the chart.
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TMP451 means that the IC itself will monitor the temperature of the "local" position (i.e. where the device is placed) with a built-in local temperature sensor， but it also has capability to measure the temperature of alternate locations on a PCB via external transistors (or thermal diode). These external transistors are typically low-cost discrete NPN or PNP transistors, or substrate thermal transistors or diodes that are integral parts of microprocessors, microcontrollers, or FPGAs.
About “how far can my remote be from the remote temperature sensor,” please refer to the FAQ: