SNVSCF8A June   2023  – October 2026 TPS3436

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  Thermal Information
    6. 6.6  Electrical Characteristics
    7. 6.7  Timing Requirements
    8. 6.8  Switching Characteristics
    9. 6.9  Timing Diagrams
    10. 6.10 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
      1. 7.3.1 Window Watchdog Timer
        1. 7.3.1.1 tWC (Close Window) Timer
        2. 7.3.1.2 tWO (Open Window) Timer
        3. 7.3.1.3 Watchdog Enable Disable Operation
        4. 7.3.1.4 tSD Watchdog Start Up Delay
        5. 7.3.1.5 SET Pin Behavior
      2. 7.3.2 Manual RESET
      3. 7.3.3 WDO Output
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Output Assert Delay
        1. 8.1.1.1 Factory-Programmed Output Assert Delay Timing
        2. 8.1.1.2 Adjustable Capacitor Timing
      2. 8.1.2 Watchdog Window Functionality
        1. 8.1.2.1 Factory-Programmed Timing Options
        2. 8.1.2.2 Adjustable Capacitor Timing
    2. 8.2 Typical Applications
      1. 8.2.1 Design 1: Monitoring a Microcontroller Watchdog During Operational and Sleep Modes
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Determining Window Timings During Operation and Sleep Modes
          2. 8.2.1.2.2 Meeting the Output Assert Delay
          3. 8.2.1.2.3 Setting the Watchdog Window
          4. 8.2.1.2.4 Calculating the WDO Pullup Resistor
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Nomenclature
    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

8.1.1 Output Assert Delay

The TPS3436 features two options for setting the output assert delay (tWDO): using a fixed timing and programming the timing through an external capacitor.