ZHCSG15A February   2017  – September 2021 TPL5110-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Ratings
    4. 6.4 Thermal Information
    5. 6.5 Electrical Characteristics
    6. 6.6 Timing Requirements
    7. 6.7 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 DRV
      2. 7.3.2 DONE
    4. 7.4 Device Functional Modes
      1. 7.4.1 Start-Up
      2. 7.4.2 Timer Mode
      3. 7.4.3 One-Shot Mode
    5. 7.5 Programming
      1. 7.5.1 Configuring the Time Interval with the DELAY/M_DRV Pin
      2. 7.5.2 Manual MOSFET Power ON Applied to the DELAY/M_DRV Pin
        1. 7.5.2.1 DELAY/M_DRV
        2. 7.5.2.2 Circuitry
      3. 7.5.3 Selection of the External Resistance
      4. 7.5.4 Quantization Error
      5. 7.5.5 Error Due to Real External Resistance
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 接收文档更新通知
    2. 11.2 支持资源
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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7.1 Overview

The TPL5110-Q1 is a timer with power gating feature. It is ideal for use in power-cycled applications and provides selectable timing from 100ms to 7200s.

Once configured in timer mode (EN/ONE_SHOT= HIGH) the TPL5110-Q1 periodically sends out a DRV signal to a MOSFET to turn on the µC. If the µC replies with a DONE signal within the programmed time interval (tDRV) the TPL5110-Q1 turns off the µC, otherwise the TPL5110-Q1 keeps the µC in the on state for a time equal to tDRV.

The TPL5110-Q1 can work also in a one-shot mode (EN/ONE_SHOT= LOW). In this mode the DRV signal is sent out just one time at the power on of the TPL5110-Q1 to turn on the µC. If the µC replies with a DONE signal within the programmed time interval (tDRV) the TPL5110-Q1 turns off the µC, otherwise the TPL5110-Q1 keeps the µC in the on state for a time equal to tDRV.