ZHCSQ91 august   2023 TLV1851-Q1 , TLV1861-Q1

PRODMIX  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
    1.     Pin Configuration: TLV1851-Q1 and TLV1861-Q1
    2.     Pin Configurations: TLV1852-Q1 and TLV1862-Q1
    3.     Pin Configurations: TLV1854-Q1 and TLV1864-Q1
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Thermal Information
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Electrical Characteristics
    6. 6.6 Switching Characteristics
    7. 6.7 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagrams
    3. 7.3 Feature Description
    4. 7.4 Device Functional Modes
      1. 7.4.1 Inputs
        1. 7.4.1.1 Operating Common-Mode Ranges
        2. 7.4.1.2 Fail-Safe Inputs
        3. 7.4.1.3 Unused Inputs
      2. 7.4.2 Internal Hysteresis
      3. 7.4.3 Outputs
        1. 7.4.3.1 TLV185x-Q1 Push-Pull Output
        2. 7.4.3.2 TLV186x-Q1 Open-Drain Output
      4. 7.4.4 ESD Protection
        1. 7.4.4.1 Inputs
        2. 7.4.4.2 Outputs
      5. 7.4.5 Power-On Reset (POR)
      6. 7.4.6 Reverse Battery Protection
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Basic Comparator Definitions
        1. 8.1.1.1 Operation
        2. 8.1.1.2 Propagation Delay
        3. 8.1.1.3 Overdrive Voltage
      2. 8.1.2 Hysteresis
        1. 8.1.2.1 Inverting Comparator With Hysteresis
        2. 8.1.2.2 Non-Inverting Comparator With Hysteresis
        3. 8.1.2.3 Inverting and Non-Inverting Hysteresis using Open-Drain Output
    2. 8.2 Typical Applications
      1. 8.2.1 Window Comparator
        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 Undervoltage Detection
      3. 8.2.3 Reverse Battery and Overvoltage Protection Scheme
    3. 8.3 Power Supply Recommendations
  10. 9 Layout
    1. 9.1 Layout Guidelines
    2. 9.2 Layout Example
  11. 10器件和文档支持
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  12. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.2.3 Reverse Battery and Overvoltage Protection Scheme

In battery powered applications, it is essential to have safeguards in place to protect the internal electronics against reverse battery connections. Figure 8-10 shows a protection scheme using TLV1851-Q1 to prevent damage to the overall system in the events of both improper battery installation and overvoltage conditions. Under either of these instances, Q1 and Q2 will open, thus protecting the system from ever seeing reverse battery or overvoltage conditions.

GUID-20230313-SS0I-GRK2-F7QQ-ZRPJSTKTHQZH-low.svgFigure 8-10 Reverse Battery and Overvoltage Protection Scheme
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