9-bit I²C local temp sensor with ±2°C accuracy
The LM75BIMX-5/NOPB is a digital local temperature sensor from Texas Instruments, sensing -55°C to 125°C with a 9-bit resolution over the I²C bus. The accuracy spec of ±2°C (max ±3°C) over the full range means this part can serve as the primary thermal monitor for fan control, overtemp alarm, or system shutdown without needing a separate ADC or comparator. Supply voltage spans 3V to 5.5V, so it runs directly off a 3.3V or 5V rail — no extra LDO. The I²C output is 3.3V-compatible, which matches the logic level of most modern MCUs and SoCs.
Wide temperature range and programmable features
That range suits outdoor telecom cabinets, engine-bay sensors, and cold-chain monitoring without a separate cold-junction reference. The part includes an output switch, programmable limit, and shutdown mode. The programmable limit lets the designer set a threshold that asserts the OS output pin — useful as a hardware interrupt for overtemperature without polling the I²C bus continuously. Shutdown mode drops power consumption for battery-sensitive designs.
Active production, 8-SOIC package, ROHS3
The 8-SOIC package (0.154", 3.90 mm width) is a standard footprint that reflow profiles and stencil apertures are well established for.