ZHCSNV8A December   2021  – June 2022 TPS63901

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 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 Trapezoidal Current Control
      2. 7.3.2 Device Enable and Disable
      3. 7.3.3 Soft Start
      4. 7.3.4 Input Current Limit
      5. 7.3.5 Dynamic Voltage Scaling
      6. 7.3.6 Device Configuration (Resistor-to-Digital Interface)
      7. 7.3.7 SEL Pin
      8. 7.3.8 Short-Circuit Protection
        1. 7.3.8.1 Current Limit Setting = 'Unlimited'
        2. 7.3.8.2 Current Limit Setting = 1 mA to 100 mA
      9. 7.3.9 Thermal Shutdown
    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 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Inductor Selection
        2. 8.2.2.2 Output Capacitor Selection
        3. 8.2.2.3 Input Capacitor Selection
        4. 8.2.2.4 Setting The Output Voltage
      3. 8.2.3 Application Curves
  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 Device Support
      1. 11.1.1 Third-Party Products Disclaimer
    2. 11.2 Documentation Support
      1. 11.2.1 Related Documentation
    3. 11.3 接收文档更新通知
    4. 11.4 支持资源
    5. 11.5 Trademarks
    6. 11.6 Electrostatic Discharge Caution
    7. 11.7 术语表
  12. 12Mechanical, Packaging, and Orderable Information

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7.3.8.1 Current Limit Setting = 'Unlimited'

The device has a built-in short circuit protection function to limit the current through Q1. The maximum current that flows is limited by the peak current limit. The output voltage decreases if the load is higher than the peak current limit. If the output voltage falls below 1.25 typically, the short circuit protection is activated. With short circuit protection activated, the input current is limited to 26 mA on average.

The device automatically restarts to normal operation after the short condition is removed.