SNVAA89A November   2023  – March 2024 LM75A , LM75B , TMP102 , TMP1075 , TMP110 , TMP112 , TMP112-Q1 , TMP175 , TMP175-Q1 , TMP275 , TMP275-Q1 , TMP75 , TMP75-Q1 , TMP75B , TMP75B-Q1 , TMP75C , TMP75C-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Devices Covered in Application Note: Package Pinout and Spec Compatibility
    1. 2.1 TMP1075: Latest Generation LM75 Sensor in Industry-Standard Packages for Cost-Optimized Designs
    2. 2.2 TMP110: LM75-Based Temp Sensor in Small X2SON Package for the Highest Cost-Efficiency
    3. 2.3 TMP112-Q1: Functional Safety-Capable, LM75-Based Sensor for Automotive Designs
  6. 3 Software Compatibility
  7. 4 TMP1075 Cost-Optimized Dual-Source Layout Using TMP110
  8. 5 Linux Driver
  9. 6 Conversion Time and Resolution Setting Highlights
  10. 7 Interpreting Digital Temperature Output: Data Encoding Compatibility
  11. 8 Summary
  12. 9 References
  13. 10Revision History

2.3 TMP112-Q1: Functional Safety-Capable, LM75-Based Sensor for Automotive Designs

When considering automotive-rated 75-family sensors, TMP112-Q1 is advantageous for two-wire, SMBus, I2C-interface, digital temperature sensor (Table 2-3). This sensor is designed for high accuracy and low power. TMP112-Q1 is not P2P compatible with most of the 75 family, but TMP112-Q1 is an option for saving on power consumption. TMP112-Q1 is only available in the SOT563 package.

Table 2-2 Catalog 75-Family Comparison
Devices(1)SOIC and VSSOP CompatibleRating# of ADDRFSULNISTTminTmaxVmaxIQAccuracy MAX (°C)
-55-40-200255085100125
TMP110noCatalog4-40°C125°C1.14V - 5.5

10µA

---±1±1±1±1±1±1±1±1
TMP1075yesCatalog32✔-55°C125°C1.7V - 5.5V4µA±2±1±1±1±1±1±1±1±2
TMP1075NnoCatalog4✔-40°C125°C1.62V - 3.6V10µA---±2±2±1±1±1±2±2±2
TMP112noCatalog4✔-40°C125°C1.4V - 3.6V10µA---±1±1±0.5

±0.5

±0.5±1±1±1
TMP102noCatalog4✔-40°C125°C1.4V - 3.6V10µA---±3±2±2±2±2±2±3±3
TMP275yesCatalog8-40°C125°C2.7V - 5.5V85µA---±1±0.5±0.5±0.5±0.5±0.5±0.5±1
TMP175yesCatalog27-40°C125°C2.7V - 5.5V85µA---±2±1.5±1.5±1.5±1.5±1.5±2±2
TMP75yesCatalog8✔-40°C125°C2.7V - 5.5V85µA---±3±2±2±2±2±2±3±3
TMP75ByesCatalog8-55°C125°C1.4V - 3.6V89µA±3±3±2±2±2±2±2±3±3
TMP75CyesCatalog8-55°C125°C1.4V - 3.6V37µA±3±3±2±2±2±2±2±3±3
LM75AyesCatalog8✔-55°C125°C2.7V - 5.5V500µA±3±3±2±2±2±2±2±2±3
LM75ByesCatalog8✔-55°C125°C3.0V - 5.5V1000µA±3±3±2±2±2±2±2±2±3
Table 2-3 Automotive 75-Family Comparison
Devices(1)SOIC and VSSOP CompatibleRating# of ADDRFSULNISTTminTmaxVmaxIQAccuracy MAX (°C)
-40-200255085100125
TMP112-Q1noAutomotive4✔✔-40°C125°C1.4V - 3.6V10µA±1±1±0.5±0.5±0.5±1±1±1

TMP275-Q1

yes

Automotive

8

-40°C

125°C

2.7V - 5.5V

85µA±1.5±1.5±0.75±0.75±0.75±0.75±1.5±1.5
TMP175-Q1yesAutomotive27-40°C125°C2.7V - 5.5V85µA±2±1.5±1.5±1.5±1.5±1.5±2±2
TMP75-Q1yesAutomotive8✔-40°C125°C2.7V - 5.5V86µA±3±2±2±2±2±2±3±3
TMP75B-Q1yesAutomotive8✔-40°C125°C1.4V - 3.6V89µA±3±2±2±2±2±2±3±3
TMP75C-Q1yesAutomotive8✔-40°C125°C1.4V - 3.6V37µA±3±2±1±1±1±2±3±3
(1) Functional safety compliant, UL certified, and NIST traceable.