ZHCSOW5B September   2021  – July 2022 LM74721-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 Conditions
   4. 6.4 Thermal Information
   5. 6.5 Electrical Characteristics
   6. 6.6 Switching Characteristics
   7. 6.7 Typical Characteristics
7. 7 Parameter Measurement Information
8. 8 Detailed Description
   1. 8.1 Overview
   2. 8.2 Functional Block Diagram
   3. 8.3 Feature Description
      1. 8.3.1 Reverse Battery Protection (A, C, GATE)
         1. 8.3.1.1 Input TVS Less Operation: VDS Clamp
      2. 8.3.2 Load Disconnect Switch Control (PD)
      3. 8.3.3 Overvoltage Protection and Battery Voltage Sensing (VSNS, SW, OV)
      4. 8.3.4 Boost Regulator
   4. 8.4 Shutdown Mode
9. 9 Application and Implementation
   1. 9.1 Application Information
   2. 9.2 Typical 12-V Reverse Battery Protection Application
      1. 9.2.1 Design Requirements for 12-V Battery Protection
      2. 9.2.2 Detailed Design Procedure
         1. 9.2.2.1 Boost Converter Components (C2, C3, L1)
         2. 9.2.2.2 Input and Output Capacitance
         3. 9.2.2.3 Hold-Up Capacitance
         4. 9.2.2.4 MOSFET Selection: Q1
      3. 9.2.3 Application Curves
   3. 9.3 What to Do and What Not to Do
10. 10Power Supply Recommendations
    1. 10.1 Transient Protection
11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
12. 12Device and Documentation Support
    1. 12.1 接收文档更新通知
    2. 12.2 支持资源
    3. 12.3 Trademarks
    4. 12.4 Electrostatic Discharge Caution
    5. 12.5 术语表
13. 13Mechanical, Packaging, and Orderable Information