High-precision digital temperature sensor and thermal watchdog

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  • The STLM75 is a high-precision digital CMOS temperature sensor IC with a sigma-delta temperature-to-digital converter and an I2C-compatible serial digital interface. It is targeted for general applications such as personal computers, system thermal management, electronics equipment, and industrial controllers, and is packaged in the industry standard 8-lead TSSOP and SO8 packages.

    The device contains a band gap temperature sensor and 9-bit ADC which monitor and digitize the temperature to a resolution up to 0.5 °C. The STLM75 is typically accurate to (±3 °C - max) over the full temperature measurement range of –55 °C to 125 °C with ±2 °C accuracy in the –25 °C to +100 °C range. The STLM75 is pin-for-pin and software compatible with the LM75B.
    The STLM75 is specified for operating at supply voltages from 2.7 V to 5.5 V. Operating at 3.3 V, the supply current is typically (125 μA).
    The on-board sigma-delta analog-to-digital converter (ADC) converts the measured temperature to a digital value that is calibrated in degrees centigrade; for Fahrenheit applications a lookup table or conversion routine is required.
    The STLM75 is factory-calibrated and requires no external components to measure temperature.

    Key Features

    • Measures temperatures from –55°C to +125°C (–67°F to +257°F)
      • ±0.5°C (typ) accuracy
      • ±2°C (max) accuracy from –25°C to +100°C
    • Low operating current: 125 μA (typ)
    • No external components required
    • 2-wire I2C/SMBus-compatible serial interface
      • Supports bus time-out feature
      • Selectable bus address allows connection of up to eight devices on the bus
    • Wide power supply range-operating voltage range: 2.7 V to 5.5 V
    • Conversion time is 150 ms (max)
    • Programmable temperature threshold and hysteresis set points
    • Pin- and software-compatible with LM75 (drop-in replacement)
    • Power-up defaults permit standalone operation as a thermostat
    • Shutdown mode to minimize power consumption
    • Output pin (open drain) can be configured for interrupt or comparator/thermostat mode (dual purpose event pin)
    • Packages:
      • SO8
      • MSOP8 (TSSOP8)

Circuit Diagram

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Part Number
Package
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Temperature (°C) Marketing Status
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min
max
STLM75DS2F MSOP/TSSOP 8 Tape And Reel -55 125
Active
0.284 1000 EAR99
MORE INFO

Country of Origin:

MALAYSIA

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Distributor availability ofSTLM75DS2F

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Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5665 1 Order Now
RS COMPONENTS EUROPE 1019 1 Order Now
AVNET AMERICA 23340 0 Order Now
ARROW EUROPE 1000 0 Order Now
Newark Element14 AMERICA 400 0 Order Now
MOUSER WORLDWIDE 9379 1 Order Now
Farnell Element14 EUROPE 393 1 Order Now

Distributor reported inventory date: 2019-05-22

Distributor Name

DIGIKEY

Stock

5665

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1

Region

WORLDWIDE Order Now

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Stock

1019

Min.Order

1

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EUROPE Order Now

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Stock

23340

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

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400

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

9379

Min.Order

1

Region

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Farnell Element14

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393

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1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-22

Buy now
STLM75M2F SO-8 Tape And Reel -55 125
Active
0.284 1000 EAR99
MORE INFO

Country of Origin:

MOROCCO

Check Availability

Distributor availability ofSTLM75M2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9465 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
Newark Element14 AMERICA 545 0 Order Now
MOUSER WORLDWIDE 4471 1 Order Now
Farnell Element14 EUROPE 4521 1 Order Now

Distributor reported inventory date: 2019-05-22

Distributor Name

DIGIKEY

Stock

9465

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

Newark Element14

Stock

545

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4471

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4521

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-22

Buy now

STLM75DS2F

Package

MSOP/TSSOP 8

Packing Type

Tape And Reel

Unit Price (US$)

0.284*

Distributor availability ofSTLM75DS2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5665 1 Order Now
RS COMPONENTS EUROPE 1019 1 Order Now
AVNET AMERICA 23340 0 Order Now
ARROW EUROPE 1000 0 Order Now
Newark Element14 AMERICA 400 0 Order Now
MOUSER WORLDWIDE 9379 1 Order Now
Farnell Element14 EUROPE 393 1 Order Now

Distributor reported inventory date: 2019-05-22

Distributor Name

DIGIKEY

Stock

5665

Min.Order

1

Region

WORLDWIDE Order Now

RS COMPONENTS

Stock

1019

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

23340

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

1000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

400

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

9379

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

393

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-22

Operating Temperature (°C)

(min)

-55

(max)

125

Marketing Status

Active

Unit Price (US$)

0.284

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MALAYSIA

STLM75M2F

Package

SO-8

Packing Type

Tape And Reel

Unit Price (US$)

0.284*

Distributor availability ofSTLM75M2F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 9465 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
Newark Element14 AMERICA 545 0 Order Now
MOUSER WORLDWIDE 4471 1 Order Now
Farnell Element14 EUROPE 4521 1 Order Now

Distributor reported inventory date: 2019-05-22

Distributor Name

DIGIKEY

Stock

9465

Min.Order

1

Region

WORLDWIDE Order Now

FUTURE

Stock

2500

Min.Order

2500

Region

WORLDWIDE Order Now

Newark Element14

Stock

545

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

4471

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4521

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2019-05-22

Operating Temperature (°C)

(min)

-55

(max)

125

Marketing Status

Active

Unit Price (US$)

0.284

Quantity

1000

ECCN (US)

EAR99

Country of Origin

MOROCCO

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

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00 Files selected for download

Technical Documentation

    • Description Version Size Action
      DS5155
      Digital temperature sensor and thermal watchdog
      12.1
      645.6 KB
      PDF
      DS5155

      Digital temperature sensor and thermal watchdog

    • Description Version Size Action
      AN2680
      Fan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU
      1.4
      125.82 KB
      PDF
      AN3108
      STLM75 firmware library for the STM32F10x
      1.2
      785.54 KB
      PDF
      AN2680

      Fan speed controller based on STDS75 or STLM75 digital temperature sensor and ST72651AR6 MCU

      AN3108

      STLM75 firmware library for the STM32F10x

Publications and Collaterals

    • Description Version Size Action
      STTS75 2.2
      706.56 KB
      PDF

      STTS75

    • Description Version Size Action
      MEMS and Sensors Smart Motion tracking, IoT and enhanced user experience 1.0
      1.91 MB
      PDF
      Sensor & motion algorithm software pack for STM32Cube 1.0
      544.58 KB
      PDF

      MEMS and Sensors Smart Motion tracking, IoT and enhanced user experience

      Sensor & motion algorithm software pack for STM32Cube

Part Number Marketing Status Package RoHS Compliance Grade Material Declaration**
STLM75DS2F
Active
MSOP/TSSOP 8 Ecopack2
STLM75M2F
Active
SO-8 Ecopack1

STLM75DS2F

Package:

MSOP/TSSOP 8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

MSOP/TSSOP 8

RoHS Compliance Grade

Ecopack2

STLM75M2F

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

RoHS Compliance Grade

Ecopack1

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.