SNAS651A January   2015  – September 2018 TPL5010

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Application Schematic
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Ratings
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 WAKE
      2. 8.3.2 DONE
      3. 8.3.3 RSTn
    4. 8.4 Device Functional Modes
      1. 8.4.1 Start-Up
      2. 8.4.2 Normal Operating Mode
    5. 8.5 Programming
      1. 8.5.1 Configuring the WAKE Interval With the DELAY/M_RST Pin
      2. 8.5.2 Manual Reset
        1. 8.5.2.1 DELAY/M_RST
        2. 8.5.2.2 Circuitry
      3. 8.5.3 Timer Interval Selection Using External Resistance
      4. 8.5.4 Quantization Error
      5. 8.5.5 Error Due to Real External Resistance
  9. 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
  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 Community 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

8.3 Feature Description

The DONE, WAKE and RSTn signals are used to implement the watchdog function. The TPL5010 is programmed to issue a periodic WAKE pulse to a µC which is in sleep or standby mode. After receiving the WAKE pulse, the µC must issue a DONE signal to the TPL5010 at least 20 ms before the rising edge of the next WAKE pulse. If the DONE signal is not asserted, the TPL5010 asserts the RSTn signal to reset the µC. A manual reset function is realized by momentarily pulling the DELAY/M_RST pin to VDD.

TPL5010 MISSED_DONE_5010_rev2.gifFigure 8. Watchdog