SBOS288M January   2004  – December 2020 TMP175 , TMP75

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 I2C Interface Timing
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    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 to the TMP175 and TMP75
        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 Mode
        8. 7.3.2.8 Time-out Function
      3. 7.3.3 Timing Diagrams
      4. 7.3.4 Two-Wire Timing Diagrams
    4. 7.4 Device Functional Modes
      1. 7.4.1 Shutdown Mode (SD)
      2. 7.4.2 One-shot (OS)
      3. 7.4.3 Thermostat Mode (TM)
      4. 7.4.4 Comparator Mode (TM = 0)
      5. 7.4.5 Interrupt Mode (TM = 1)
    5. 7.5 Programming
      1. 7.5.1 Pointer Register
        1. 7.5.1.1 Pointer Register Byte (pointer = N/A) [reset = 00h]
        2. 7.5.1.2 Pointer Addresses of the TMP175
      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/R0)
        6. 7.5.3.6 One-Shot (OS)
      4. 7.5.4 High and Low Limit Registers
  8. 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 Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

8.2.1 Design Requirements

The TMP175 and TMP75 devices requires pullup resistors on the SCL, SDA, and ALERT pins. The recommended value for the pullup resistor is 4.7 kΩ. In some applications the pullup resistor can be lower or higher than 4.7 kΩ but must not exceed 3 mA of current on the SCL and SDA pins, and must not exceed 4 mA on the ALERT pin. A 0.01-μF bypass capacitor is recommended, as shown in Figure 8-1. The SCL, SDA, and ALERT lines can be pulled up to a supply that is equal to or higher than VS through the pullup resistors. For TMP175, to configure one of 27 different addresses on the bus, connect A0, A1, and A2 to either the GND or V+ pin, or float. Float indicates the pin is left unconnected. For the TMP75, to configure one of eight different addresses on the bus, connect A0, A1, and A2 to either the GND or V+ pin.