SBOSAJ7A October   2025  – December 2025 TMP4719

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 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 Timing Diagrams
    8. 6.8 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Device Initialization and Default Temperature Conversion
      2. 7.3.2 Series Resistance Cancellation
      3. 7.3.3 ALERT and T_CRIT Output
      4. 7.3.4 1.2V Logic Compatible Inputs
      5. 7.3.5 Digital Filter
      6. 7.3.6 One-Shot Conversions
    4. 7.4 Device Functional Modes
      1. 7.4.1 Interrupt and Comparator Mode
        1. 7.4.1.1 Interrupt Mode
        2. 7.4.1.2 Comparator Mode
        3. 7.4.1.3 T_CRIT Output
      2. 7.4.2 Shutdown Mode
      3. 7.4.3 Continuous Conversion Mode
    5. 7.5 Programming
      1. 7.5.1 Temperature Data Format
      2. 7.5.2 I2C and SMBus Interface
      3. 7.5.3 Serial Bus Address
      4. 7.5.4 Bus Transactions
        1. 7.5.4.1 Writes
        2. 7.5.4.2 Reads
      5. 7.5.5 SMBus Alert Mode
  9. 8 Register Map
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curve
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

7.4.1.2 Comparator Mode

When the Alert Mode Setting bit in the Configuration Register is set to 1, the Alert Mode is set to Comparator mode. In this mode, the ALERT pin is asserted at the end of a conversion cycle if the measured temperature exceeds a High Alert Limit or goes below a Low Alert Limit defined in the limit registers. The ALERT pin deasserts at the end of the preceding conversion cycle if the measured temperature is equal to or below a High Alert limit minus hysteresis and equal to or above a Low Alert limit plus hysteresis defined in the limit registers. The ALERT mask bit does not set after reading the status register in comparator mode.

The ALERT High Status flag sets at the end of a conversion cycle when the measured temperature exceeds a High Alert Limit register limit and clear at the end of a conversion cycle when the measured temperature is equal to or below the High Limit value minus hysteresis. There are separate High Limit values and status register flags for the remote and local temperature measurements. The status register flags only set or clear to the respective temperature measurements. Refer to Section 8.30.

The ALERT Low Status flag sets at the end of a conversion cycle when the measured temperature is below a Low Alert Limit register limit and clears at the end of a conversion cycle when the measured temperature is equal to or above the Low Limit value plus hysteresis. There are separate Low Limit values and status register flags for the remote and local temperature measurements. The status register flags only set or clear to the respective temperature measurements. Refer to Section 8.31.

Figure 7-6 shows the behavior of the ALERT pin and flags while in Comparator mode.

TMP4719 Alert Comparator Mode Timing DiagramFigure 7-6 Alert Comparator Mode Timing Diagram