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TMP75B

ACTIVE

1.4V-Capable Temperature Sensor with I2C/SMBus Interface in LM75 Form Factor & Pinout

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Data sheet

TMP75B

ACTIVE
Data sheet Order now

Product details

Local sensor accuracy (max) 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 Features ALERT Supply current (max) (µA) 89 Temp resolution (max) (bps) 12 Remote channels (#) 0 Addresses 8 Rating Catalog
Local sensor accuracy (max) 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 Features ALERT Supply current (max) (µA) 89 Temp resolution (max) (bps) 12 Remote channels (#) 0 Addresses 8 Rating Catalog
SOIC (D) 8 29.4 mm² 4.9 x 6 VSSOP (DGK) 8 14.7 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) PDF | HTML 20 Aug 2014
Application note How to Read and Interpret Digital Temperature Sensor Output Data PDF | HTML 12 Apr 2024
Application note LM75B and TMP1075 Industry-Standard Devices: Design Guidelines and Spec Comparison (Rev. A) PDF | HTML 07 Mar 2024
EVM User's 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 (...)

User guide: PDF
Not available on TI.com
IDE, configuration, compiler or debugger

ASC-STUDIO-TMP75B — ASC studio for configuring all aspects of the TMP75B temperature sensor

SysConfig can be used to help simplify configuration challenges and accelerate software development with the TMP75B temperature sensor.
Supported products & hardware

Supported products & hardware

Products
Digital temperature sensors
TMP75B — 1.4V-Capable Temperature Sensor with I2C/SMBus Interface in LM75 Form Factor & Pinout
Launch
Support software

SBOC439 — TMP75BEVM Software

Supported products & hardware

Supported products & hardware

Products
Digital temperature sensors
TMP75B — 1.4V-Capable Temperature Sensor with I2C/SMBus Interface in LM75 Form Factor & Pinout TMP75B-Q1 — Automotive, 1.4V-capable temperature sensor with I2C/SMBus interface in LM75 pinout
Hardware development
Evaluation board
TMP75BEVM — TMP75B Evaluation Module for Digital Output Temperature Sensor
Download
Simulation model

TMP75B IBIS Model (Rev. A)

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

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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 (...)
Design guide: PDF
Schematic: PDF
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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 (...)
Design guide: PDF
Schematic: PDF
Package Pins CAD symbols, footprints & 3D models
SOIC (D) 8 Ultra Librarian
VSSOP (DGK) 8 Ultra Librarian
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