Product details

Local sensor accuracy (Max) (+/- C) 2 Type Local Operating temperature range (C) -55 to 125 Supply voltage (Min) (V) 1.4 Interface type I2C, SMBus Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 89 Temp resolution (Max) (bits) 12 Features ALERT Remote channels (#) 0 Addresses 8 Rating Catalog
Local sensor accuracy (Max) (+/- C) 2 Type Local Operating temperature range (C) -55 to 125 Supply voltage (Min) (V) 1.4 Interface type I2C, SMBus Supply voltage (Max) (V) 3.6 Supply current (Max) (uA) 89 Temp resolution (Max) (bits) 12 Features ALERT Remote channels (#) 0 Addresses 8 Rating Catalog
SOIC (D) 8 19 mm² 4.9 x 3.9 VSSOP (DGK) 8 15 mm² 3 x 4.9
  • Low-Voltage Alternative to LM75 and TMP75
  • Digital Output with Standard Two-Wire Serial Interface
  • Up to 8 Pin-Programmable Bus Addresses
  • Overtemperature ALERT Pin with Programmable Trip Values
  • Shutdown Mode for Battery Power Saving
  • One-Shot Conversion Mode for Custom Update Rates
  • Operating Temperature Range: –55°C to +125°C
  • Operating Supply Range: 1.4 V to 3.6 V
  • Quiescent Current:
    • 45 µA Active (typ)
    • 0.3 µA Shutdown (typ)
  • Accuracy:
    • ±0.5°C (typ) from –20°C to +85°C
    • ±1°C (typ) from –55°C to +125°C
  • Resolution: 12 Bits (0.0625°C)
  • Packages: SOIC-8 and VSSOP-8
  • Low-Voltage Alternative to LM75 and TMP75
  • Digital Output with Standard Two-Wire Serial Interface
  • Up to 8 Pin-Programmable Bus Addresses
  • Overtemperature ALERT Pin with Programmable Trip Values
  • Shutdown Mode for Battery Power Saving
  • One-Shot Conversion Mode for Custom Update Rates
  • Operating Temperature Range: –55°C to +125°C
  • Operating Supply Range: 1.4 V to 3.6 V
  • Quiescent Current:
    • 45 µA Active (typ)
    • 0.3 µA Shutdown (typ)
  • Accuracy:
    • ±0.5°C (typ) from –20°C to +85°C
    • ±1°C (typ) from –55°C to +125°C
  • Resolution: 12 Bits (0.0625°C)
  • Packages: SOIC-8 and VSSOP-8

The TMP75B is an integrated digital temperature sensor with a 12-bit analog-to-digital converter (ADC) that can operate at a 1.8-V supply, and is pin and register compatible with the industry-standard LM75 and TMP75. This device is available in SOIC-8 and VSSOP-8 packages, and requires no external components to sense the temperature. The TMP75B is capable of reading temperatures with a resolution of 0.0625°C and is specified over a temperature range of –55°C to +125°C.

The TMP75B features SMBus and two-wire interface compatibility, and allows up to eight devices on the same bus with the SMBus overtemperature alert function. The programmable temperature limits and the ALERT pin allow the sensor to operate as a stand-alone thermostat, or an overtemperature alarm for power throttling or system shutdown.

The factory-calibrated temperature accuracy and the noise-immune digital interface make the TMP75B the preferred solution for temperature compensation of other sensors and electronic components, without the need for additional system-level calibration or elaborate board layout for distributed temperature sensing.

The TMP75B is ideal for thermal management and protection of a variety of consumer, computer, communication, industrial, and environmental applications.

The TMP75B is an integrated digital temperature sensor with a 12-bit analog-to-digital converter (ADC) that can operate at a 1.8-V supply, and is pin and register compatible with the industry-standard LM75 and TMP75. This device is available in SOIC-8 and VSSOP-8 packages, and requires no external components to sense the temperature. The TMP75B is capable of reading temperatures with a resolution of 0.0625°C and is specified over a temperature range of –55°C to +125°C.

The TMP75B features SMBus and two-wire interface compatibility, and allows up to eight devices on the same bus with the SMBus overtemperature alert function. The programmable temperature limits and the ALERT pin allow the sensor to operate as a stand-alone thermostat, or an overtemperature alarm for power throttling or system shutdown.

The factory-calibrated temperature accuracy and the noise-immune digital interface make the TMP75B the preferred solution for temperature compensation of other sensors and electronic components, without the need for additional system-level calibration or elaborate board layout for distributed temperature sensing.

The TMP75B is ideal for thermal management and protection of a variety of consumer, computer, communication, industrial, and environmental applications.

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Technical documentation

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Type Title Date
* Data sheet TMP75B 1.8-V Digital Temperature Sensor with Two-Wire Interface and Alert datasheet (Rev. B) 20 Aug 2014
Technical article How to choose the right thermistor for your temperature sensing application 13 Feb 2020
Technical article How to enable thermal safety for automotive infotainment and cluster systems 15 Oct 2019
Technical article Driving industrial innovation with small-size sensors 12 Sep 2019
Technical article How to select a temperature sensor probe 18 Feb 2016
User guide TMP75BEVM and TMP75CEVM User Guide 10 Apr 2014

Design & development

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

Evaluation board

TMP75BEVM — TMP75B Evaluation Module for Digital Output Temperature Sensor

The TMP75B is is a digital output temperature sensor capable of reading temperatures of -40ºC to +125ºC with 12 bits (0.0625 C) of resolution. The TMP75B uses a two-wire I2C protocol SMBus interface that allowsup to eight devices on one bus. It is ideal for extended temperature measurement (...)

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IDE, configuration, compiler or debugger

ASC-STUDIO — Analog signal chain (ASC) studio

To help simplify configuration challenges and accelerate software development, we created ASC studio, an intuitive graphical utility for configuring all aspects of TI sensors and in the future other signal chain components.  ASC studio helps you select configuration parameters visually so that (...)
Support software

TMP75BEVM Software

SBOC439.ZIP (186677 KB)
Simulation model

TMP75B IBIS Model (Rev. A)

SBOM883A.ZIP (54 KB) - IBIS Model
Reference designs

TIDA-010008 — Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications

This reference design features multiple approaches for  protecting AC or DC analog input, DC analog output, AC or DC binary input, digital output with a high side or low side driver, LCD bias supply, USB interfaces (power and data) and onboard power supplies with 24, 12 or 5V input used in (...)
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TIDA-010011 — High efficiency power supply architecture reference design for protection relay processor module

This reference design showcases various power architectures for generating multiple voltage rails for an application processor module, requiring >1A load current and high efficiency . The required power supply is generated using 5-, 12- or 24-V DC input from the backplane. Power supplies are (...)
Package Pins Download
SOIC (D) 8 View options
VSSOP (DGK) 8 View options

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