SBOA433 March 2021 TMP451 , TMP461 , TMP461-SP , TMP464 , TMP468 , TMP4718 , TMP9R00-SP
To test the BJTs, one set of transistors was connected to the TMP468EVM at a time. The BJT portion was placed in the oil bath, and temperature was swept from -40°C to 150°C in steps of 10°C. Once stabilized, temperature readings from the temperature probe and the TMP468 for the eight BJTs were recorded at each temperature step, using default settings on the EVM for η-factor correction and offset. The Remote Temperature Sensor Calibration Tool was run on the data to calculate η-factor and the η-factor correction register setting, as well as the optimal settings using both the η-factor correction and offset registers. This procedure was repeated to test all twenty sets of BJTs.