Automotive Temp Sensor with I2C/SMBus Interface in Industry Standard LM75 Form Factor & Pinout


Product details


Local sensor accuracy (Max) (+/- C) 1.5 Type Local Operating temperature range (C) -40 to 125 Supply voltage (Min) (V) 2.7 Interface type I2C, SMBus, 2-Wire Supply voltage (Max) (V) 5.5 Supply current (Max) (uA) 85 Temp resolution (Max) (bits) 12 Features ALERT, NIST traceable Remote channels (#) 0 Addresses 8 Rating Automotive open-in-new Find other Digital temperature sensors

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9 open-in-new Find other Digital temperature sensors


  • AEC-Q100 Qualified with:
    • Temperature Grade 1: –40°C to +125°C Ambient Operation Temperature Range
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C6
  • TMP175-Q1 Accuracy:
    • ±1°C (Typical) from –40°C to +125°C
    • ±2°C (Maximum) from –40°C to +125°C
  • TMP75-Q1 Accuracy:
    • ±1°C (Typical) from –40°C to +125°C
    • ±3°C (Maximum) from –40°C to +125°C
  • TMP175-Q1: 27 Addresses
  • TMP75-Q1: 8 Addresses, NIST Traceable
  • Digital Output: SMBus™, Two-Wire, and I2C Interface Compatibility
  • Resolution: 9 to 12 Bits, User-Selectable
  • Low Quiescent Current: 50-µA, 0.1-µA Standby
  • Wide Supply Range: 2.7 V to 5.5 V
  • Small 8-Pin VSSOP and 8-Pin SOIC Packages
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The TMP75-Q1 and TMP175-Q1 devices are digital temperature sensors ideal for negative temperature coefficient (NTC) and positive temperature coefficient (PTC) thermistor replacement. The devices offer a typical accuracy of ±1°C without requiring calibration or external component signal conditioning. Device temperature sensors are highly linear and do not require complex calculations or look-up tables to derive the temperature. The on-chip, 12-bit, analog-to-digital converter (ADC) offers resolutions down to 0.0625°C. The devices are available in the industry-standard, LM75, 8-pin SOIC and VSSOP footprint.

The TMP175-Q1 and TMP75-Q1 feature SMBus, two-wire, and I2C interface compatibility. The TMP175-Q1 device allows up to 27 devices on one bus. The TMP75-Q1 allows up to eight devices on one bus. The TMP175-Q1 and TMP75-Q1 both feature an SMBus alert function.

The TMP175-Q1 and TMP75-Q1 devices are ideal for extended temperature measurement in a variety of communication, computer, consumer, environmental, industrial, and instrumentation applications. The TMP75-Q1 production units are 100% tested against sensors that are NIST-traceable and are verified with equipment that are NIST-traceable through ISO/IEC 17025 accredited calibrations.

The TMP175-Q1 and TMP75-Q1 devices are specified for operation over the temperature range of –40°C to +125°C.

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NIST calibration documentation is available. Request now

Technical documentation

= Top documentation for this product selected by TI
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Type Title Date
* Datasheet TMPx75-Q1 Automotive Grade Temperature Sensor With I2C and SMBus Interface in Industry-Standard LM75 Form Factor and Pinout datasheet Nov. 18, 2015
Technical article How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical article Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical article How to select a temperature sensor probe Feb. 18, 2016
Application note Applying I2C-Compatible Temperature Sensors in Systems With Slow Clock Edges (Rev. A) May 06, 2013

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

document-generic User guide

The TMP75C is is a digital output temperature sensor capable of reading temperatures of -40ºC to +125ºC with 12 bits (0.0625 C) of resolution. The TMP75C uses a two-wire I2C protocol SMBus interface that allowsup to eight devices on one bus. It is ideal for extended temperature measurement (...)

  • Jumper selectable Device Address
  • Test points for user-provided power and I2C master           
  • LED and test point provided for Alert monitoring    
  • GUI software to configure and operate the TMP75CEVM

Software development

Linux Driver for I2C temperature sensors
LM75SW-LINUX The Linux driver support LM75 compatible Temperature Sensors. The Linux driver supports communication through the I2C bus and interfaces with the Hardware Monitoring sub-system.
Linux Mainline Status

Available in Linux Main line: Yes
Available through N/A

Supported Devices:
  • LM75A
  • TMP100
  • TMP101
  • (...)

Design tools & simulation

SLOM202.ZIP (22 KB) - IBIS Model

CAD/CAE symbols

Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

Ordering & quality

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