What the -50°C to 150°C range means for your board
The LMT84LPM is an analog local temperature sensor from Texas Instruments, part of the Automotive, AEC-Q100 series, covering the full -50°C to 150°C operating range. Output is an analog voltage with a slope of 5.5 mV/°C, so a microcontroller ADC reading 0.825 V at 150°C and 0.275 V at -50°C (at 1.5V supply) can resolve temperature without a digital interface. The ±2.7°C accuracy is typical across the full range — tight enough for thermal shutdown thresholds and trend monitoring, not for medical-grade thermometry.
Through-hole TO-92-3 — hand-solder friendly
The LMT84LPM comes in a TO-92-3 package (TO-226AA) with formed leads, through-hole mount. The 2.54 mm lead pitch matches standard perfboard and breadboard layouts — no stencil, no reflow profile, just a soldering iron and a pair of cutters. For a one-off prototype or a low-volume automotive ECU, this package keeps assembly simple. The analog output is ratiometric to the supply — the ADC reference should track Vdd for best accuracy.