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

7.4.1.1 Interrupt Mode

When the Alert Mode Setting bit in the Configuration Register is set to 0, the Alert Mode is set to Interrupt 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. In this mode, the TMP4719 sets the ALERT mask bit of the Configuration Register during a read of the Status Register if any flag in the Status Register, except the ADC_Busy flag and Remote Diode Fault flag, is set. This prevents the ALERT pin from triggering until the controller has reset the ALERT mask bit (write 0 to the Alert_MASK bit in Configuration Register).

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

The ALERT Low Status flag is set at the end of a conversion cycle when a measured temperature is below the respective Low Alert Limit register limit. There are separate Low Limit values and status register flags for the remote and local temperature measurements. The Low Limit Status register flags are only set based on respective temperature measurements. Refer to Section 8.31.

The Status Register limit flags are cleared after a read command of the Status Register from the controller and are set again at the end of a preceding temperature conversion cycle if the measured temperature is outside the set limits.

Figure 7-5 shows the behavior of the ALERT pin and flags while in Interrupt mode.

TMP4719 Alert Interrupt Mode Timing DiagramFigure 7-5 Alert Interrupt Mode Timing Diagram