SBOS473J March   2009  – February 2024 TMP112

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 Handling Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Timing Diagrams
    8. 6.8 Typical Characteristics (TMP112A/B/N)
    9. 6.9 Typical Characteristics (TMP112Dx)
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Digital Temperature Output
      2. 7.3.2 Serial Interface
        1. 7.3.2.1 Bus Overview
        2. 7.3.2.2 Serial Bus Address
        3. 7.3.2.3 Writing and Reading Operation
        4. 7.3.2.4 Slave Mode Operations
          1. 7.3.2.4.1 Slave Receiver Mode
          2. 7.3.2.4.2 Slave Transmitter Mode
        5. 7.3.2.5 SMBus Alert Function
        6. 7.3.2.6 General Call
        7. 7.3.2.7 High-Speed (Hs) Mode
        8. 7.3.2.8 Timeout Function
        9. 7.3.2.9 Timing Diagrams
          1. 7.3.2.9.1 Two-Wire Timing Diagrams
    4. 7.4 Device Functional Modes
      1. 7.4.1 Continuous-Conversion Mode
      2. 7.4.2 Extended Mode (EM)
      3. 7.4.3 One-Shot/Conversion Ready Mode (OS)
      4. 7.4.4 Thermostat Mode (TM)
        1. 7.4.4.1 Comparator Mode (TM = 0)
        2. 7.4.4.2 Interrupt Mode (TM = 1)
    5. 7.5 Programming
      1. 7.5.1 Pointer Register
      2. 7.5.2 Temperature Register
      3. 7.5.3 Configuration Register
        1. 7.5.3.1 Shutdown Mode (SD)
        2. 7.5.3.2 Thermostat Mode (TM)
        3. 7.5.3.3 Polarity (POL)
        4. 7.5.3.4 Fault Queue (F1/F0)
        5. 7.5.3.5 Converter Resolution (R1 and R0)
        6. 7.5.3.6 One-Shot (OS)
        7. 7.5.3.7 Extended Mode (EM)
        8. 7.5.3.8 Alert (AL)
      4. 7.5.4 High- and Low-Limit Register
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curves
      4. 8.2.4 Power Supply Recommendations
    3. 8.3 Layout
      1. 8.3.1 Layout Guidelines
      2. 8.3.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Documentation Support
      1. 9.1.1 Related Documentation
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.5 Electrical Characteristics

At TA = 25°C and VS = 1.4 to 3.6V, unless otherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
TEMPERATURE SENSOR
Temperature range –40 125 °C
Accuracy (temperature error) TMP112A 25°C, V+ = 3.3V ± 0.1 ± 0.5 °C
0°C to +65°C, V+ = 3.3 V ± 0.25 ± 0.5
–40°C to +125°C ± 0.5 ± 1
TMP112B 25°C, V+ = 1.8V ± 0.1 ± 0.5
0°C to +65°C, V+ = 1.8V ± 0.25 ± 0.5
–40°C to +125°C ± 0.5 ± 1
TMP112Dx 25°C TBD ± 0.5
-25°C to +85°C, V+ ≥ 1.5V TBD ± 0.5
–40°C to +125°C TBD ± 1
TMP112N –40°C to +125°C ± 1
DC power-supply sensitivity –40°C to +125°C 0.0625 ± 0.25 °C/V
Long-term drift(1) 3000 hours at 125°C ±0.0625 °C
Resolution (LSB) 0.0625 °C
DIGITAL INPUT/OUTPUT
Input capacitance 3 pF
VIH Input logic level 0.7×(V+) 3.6 V
VIL –0.5 0.3×(V+)
IIN Input current TMP112A/B/N 0 < VIN < 3.6V 1 µA
TMP112Dx 0.1 µA
VOL SDA Output low level V+ > 2 V, IOL = 3 mA 0 0.4 V
V+ < 2 V, IOL = 3 mA 0 0.2×(V+)
VOL ALERT V+ > 2 V, IOL = 3 mA 0 0.4
V+ < 2 V, IOL = 3 mA 0 0.2×(V+)
Resolution 12 Bits
Conversion time TMP112A/B/N 26 35 ms
TMP112Dx 10.25 11.25 ms
Conversion modes CR1 = 0, CR0 = 0 0.25 Conv/s
CR1 = 0, CR0 = 1 1
CR1 = 1, CR0 = 0 (default) 4
CR1 = 1, CR0 = 1 8
Timeout time (SCL = GND or SDA = GND) 30 40 ms
POWER SUPPLY
Operating supply range +1.4 +3.6 V
IQ Average quiescent current TMP112A/B/N Serial bus inactive, CR1 = 0, CR0 = 1 3.2 µA
Serial bus inactive, CR1 = 1, CR0 = 0 (default) 7 10
Serial bus active, SCL frequency = 400 kHz 15
Serial bus active, SCL frequency = 3.4 MHz 85
TMP112Dx Serial bus inactive, CR1 = 0, CR0 = 1 3.2
Serial bus inactive, CR1 = 1, CR0 = 0 (default) 4.8
Serial bus active, SCL frequency = 400 kHz TBD
Serial bus active, SCL frequency = 1 MHz TBD
ISD Shutdown current TMP112A/B/N Serial bus inactive 0.5 1 µA
Serial bus active, SCL frequency = 400 kHz 10
Serial bus active, SCL frequency = 3.4 MHz 80
TMP112Dx Serial bus inactive 0.15
Serial bus active, SCL frequency = 400 kHz 5.5
Serial bus active, SCL frequency = 1 MHz 13
(1) Long-term drift is determined using accelerated operational life testing at a junction temperature of 150°C for 1000 hours.