ZHCSR70 September   2020 TLV4011-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
    1.     Pin Functions
  6. 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  Electrical Characteristics
    6. 6.6  Timing Requirements
    7. 6.7  Switching Characteristics
    8. 6.8  Dissipation Ratings
    9. 6.9  Timing Diagrams
    10. 6.10 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 SENSE Monitoring
      2. 7.3.2 Transient Immunity
    4. 7.4 Device Functional Modes
  8. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Undervoltage Detection
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Additional Application Information
        1. 8.2.2.1 Pull-up Resistor Selection
        2. 8.2.2.2 Input Supply Capacitor
        3. 8.2.2.3 Sense Capacitor
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Examples
  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 静电放电警告
    5. 11.5 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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8.2.1 Undervoltage Detection

Undervoltage detection is frequently required in battery-powered, portable electronics to alert the system that a battery voltage has dropped below the usable voltage level. Figure 8-1 shows a simple undervoltage detection circuit using the TLV4011-Q1 which is a non-inverting comparator with an integrated 1.226 V reference and an open-drain output stage. A non-inverting is well suited for this application since the micro-controller requires an active low signal when an undervoltage level occurs.

GUID-EB15339E-BBD9-4CD9-B042-B5F6FEE1C84C-low.gifFigure 8-1 Undervoltage Detection