TMP75B

ACTIVE

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

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Product details

Parameters

Local sensor accuracy (Max) (+/- C) 2 Operating temperature range (C) -55 to 125 Supply voltage (Min) (V) 1.4 Supply voltage (Max) (V) 3.6 Device type Local Interface I2C, SMBus, 2-Wire Supply current (Max) (uA) 89 Temp resolution (Max) (bits) 12 Features ALERT Remote channels (#) 0 Addresses 8 Rating Catalog Approx. price (US$) 0.40 | 1ku 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

Features

  • 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
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Description

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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TMP1075 ACTIVE 1°C I2C Temperature sensor with performance upgrades to industry standard LM75 / TMP75 This product is a digital temperature sensor with improved accuracy (±1°C) and lower max current consumption (4µA)

Technical documentation

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Type Title Date
* Datasheet TMP75B 1.8-V Digital Temperature Sensor with Two-Wire Interface and Alert datasheet (Rev. B) Aug. 20, 2014
Technical articles How to choose the right thermistor for your temperature sensing application Feb. 12, 2020
Technical articles How to enable thermal safety for automotive infotainment and cluster systems Oct. 15, 2019
Technical articles Driving industrial innovation with small-size sensors Sep. 12, 2019
Technical articles How sensor technology is evolving to meet cold chain needs Jun. 18, 2018
User guides TMP75BEVM and TMP75CEVM User Guide Apr. 10, 2014

Design & development

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

Software development

DRIVERS & LIBRARIES Download
TMP75B Evaluation Module for Digital Output Temperature Sensor
TMP75BEVM 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 (...)
Features
  • 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 TMP75BEVM
SUPPORT SOFTWARE Download
SBOC439.ZIP (186677 KB)

Design tools & simulation

SIMULATION MODELS Download
SBOM883A.ZIP (54 KB) - IBIS Model

Reference designs

REFERENCE DESIGNS Download
Flat-Clamp TVS based Reference Design for Protection Against Transient for Grid Applications
TIDA-010008 — 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 (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High efficiency power supply architecture reference design for protection relay processor module
TIDA-010011 — 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 (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

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

Ordering & quality

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Videos

TI Precision Labs - Temperature Sensors: Interchangeability

This section of the TI Precision Labs - Temperature Sensors series explains considerations in sensor interchangeability.

Posted: 18-Jan-2019
Duration: 06:24

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