ZHCSAH4D November   2012  – July 2021

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
    7. 5.7 Typical Characteristics
      1. 5.7.1 Typical AC Scope Captures at TA = 25°C
  6. 6 Pin Configuration and Functions
  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 On And Off Control
      2. 8.3.2 UVLO
      3. 8.3.3 Reverse Current Protection
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Input Capacitor (Optional)
      2. 9.1.2 Output Capacitor (Optional)
    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
    3. 11.3 Thermal Considerations
  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

封装选项

请参考 PDF 数据表获取器件具体的封装图。

机械数据 (封装 | 引脚)
  • YZV|4
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.3.2 UVLO

UVLO turns off the switch if the input voltage drops below the under voltage lockout threshold. With the ON pin active, the input voltage rising above the under voltage lockout threshold will allow a controlled turn-on of the switch to limit current over-shoot.

The maximum UVLO of the TPS22930A is 1.2 V. This is under the minimum VIN voltage and meets the system UVLO requirements. Once the device is disabled through UVLO, it will block reverse current in the case a voltage is applied to VOUT