SBOS721A October 2014 – June 2022 TMP75B-Q1
PRODUCTION DATA
The TMP75B-Q1 is a digital temperature sensor optimal for thermal management and thermal protection applications. The TMP75B-Q1 is two-wire and SMBus interface compatible, and is specified over a temperature range of –40°C to 125°C.
The temperature sensing device for the TMP75B-Q1 is the chip itself. A bipolar junction transistor (BJT) inside the chip is used in a band-gap configuration to produce a voltage proportional to the chip temperature. The voltage is digitized and converted to a 12-bit temperature result in degrees Celsius, with a resolution of 0.0625°C. The package leads provide the primary thermal path because of the lower thermal resistance of the metal. Thus, the temperature result is equivalent to the local temperature of the printed circuit board (PCB) where the sensor is mounted.