SNVSCF7A December   2022  – August 2024 TPS3435

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 Timeout Watchdog Timer
        1. 7.3.1.1 tWD Timer
        2. 7.3.1.2 Watchdog Enable Disable Operation
        3. 7.3.1.3 tSD Watchdog Start Up Delay
        4. 7.3.1.4 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 Timer 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 Standard Microcontroller for Timeouts
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Setting the Watchdog Timeout Period
          2. 8.2.1.2.2 Setting Output Assert Delay
          3. 8.2.1.2.3 Setting the Startup Delay
          4. 8.2.1.2.4 Calculating the WDO Pullup Resistor
        3. 8.2.1.3 Application Curves
    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 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

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

6.10 Typical Characteristics

all curves are taken at TA = 25°C (unless otherwise noted)

TPS3435 Timer Accuracy vs TemperatureFigure 6-2 Timer Accuracy vs Temperature
TPS3435 tWD vs CapacitanceFigure 6-4 tWD vs Capacitance
TPS3435 WDO VOL vs I sink, VDD = 1.5VFigure 6-6 WDO VOL vs I sink, VDD = 1.5V
TPS3435 WDO VOH vs I source, VDD = 2.0VFigure 6-8 WDO VOH vs I source, VDD = 2.0V
TPS3435 Supply Current vs Power-Supply VoltageFigure 6-10 Supply Current vs Power-Supply Voltage
TPS3435 Timer Accuracy HistogramFigure 6-3 Timer Accuracy Histogram
TPS3435 tWDO vs CapacitanceFigure 6-5 tWDO vs Capacitance
TPS3435 WDO VOL vs I sink, VDD = 3.3VFigure 6-7 WDO VOL vs I sink, VDD = 3.3V
TPS3435 WDO VOH vs I source, VDD = 6.0VFigure 6-9 WDO VOH vs I source, VDD = 6.0V