SLVSGE8 November   2022 TPS35-Q1

ADVANCE INFORMATION  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Device Comparison
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Switching Characteristics
    8. 7.8 Timing Diagrams
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagrams
    3. 8.3 Feature Description
      1. 8.3.1 Voltage Supervisor
      2. 8.3.2 Timeout Watchdog Timer
        1. 8.3.2.1 tWD Timer
        2. 8.3.2.2 Watchdog Enable Disable Operation
        3. 8.3.2.3 tSD Watchdog Start Up Delay
        4. 8.3.2.4 SET Pin Behavior
      3. 8.3.3 Manual RESET
      4. 8.3.4 RESET and WDO Output
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 CRST Delay
        1. 9.1.1.1 Factory-Programmed RESET Delay Timing
        2. 9.1.1.2 Adjustable Capacitor Timing
      2. 9.1.2 CWD Functionality
        1. 9.1.2.1 Factory-Programmed RESET Delay Timing
        2. 9.1.2.2 Adjustable Capacitor Timings
    2. 9.2 Typical Applications
      1. 9.2.1 Design 1: Monitoring a Microcontroller Supply Voltage and Watchdog Timer
        1. 9.2.1.1 Design Requirements
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Setting the Voltage Threshold
          2. 9.2.1.2.2 Meeting the Watchdog Timeout Period
          3. 9.2.1.2.3 Setting the Reset Delay
          4. 9.2.1.2.4 Setting the Startup Delay and Output Topology
          5. 9.2.1.2.5 Calculating the RESET Pullup Resistor
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Receiving Notification of Documentation Updates
    2. 12.2 Support Resources
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • AEC-Q100 qualified with the following results:
    • Device temperature grade 1: –40°C to 125°C ambient operating temperature range
  • Input voltage range: VDD = 1.04 V to 6.0 V
  • Fixed threshold voltage (VIT-): 1.05 V to 5.4 V
    • Threshold voltage available in 50 mV steps
    • 1.2% Voltage threshold accuracy (maximum)
    • Built-in hysteresis (VHYS): 5% (Typical)
  • Ultra low supply current: IDD = 250 nA (typical)
  • Factory programmed or user-programmable watchdog timeout
    • ±10% Accurate timer (maximum)
    • Factory programmed: 1 msec to 100 sec
  • Factory programmed or user-programmable reset delay
    • ±10% Accurate timer (maximum)
    • Factory programmed option: 2 msec to 10 sec
  • Open-drain, push-pull; active-low outputs
  • Various programmability options:
    • Watchdog enable-disable
    • Watchdog startup delay: no delay to 10 sec
    • On the fly timer extension: 1X to 256X
    • Latched output option
  • MR functionality support