ZHCSOF8D November   2021  – May 2025 TPS2597

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Device Comparison Table
  6. 5 Pin Configuration and Functions
  7. 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 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Undervoltage Lockout (UVLO and UVP)
      2. 7.3.2 Overvoltage Lockout (OVLO)
      3. 7.3.3 Overvoltage Clamp (OVC)
      4. 7.3.4 Inrush Current, Overcurrent, and Short Circuit Protection
        1. 7.3.4.1 Slew Rate (dVdt) and Inrush Current Control
        2. 7.3.4.2 Circuit-Breaker
        3. 7.3.4.3 Active Current Limiting
        4. 7.3.4.4 Short-Circuit Protection
      5. 7.3.5 Analog Load Current Monitor
      6. 7.3.6 Overtemperature Protection (OTP)
      7. 7.3.7 Fault Response and Indication (FLT)
      8. 7.3.8 Power-Good Indication (PG)
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Single Device, Self-Controlled
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Device Selection
        2. 8.2.2.2 Setting Undervoltage and Overvoltage Thresholds
        3. 8.2.2.3 Setting Output Voltage Rise Time (tR)
        4. 8.2.2.4 Setting Power-Good Assertion Threshold
        5. 8.2.2.5 Setting Overcurrent Threshold (ILIM)
        6. 8.2.2.6 Setting Overcurrent Blanking Interval (tITIMER)
      3. 8.2.3 Application Curves
    3. 8.3 Parallel Operation
    4. 8.4 Power Supply Recommendations
      1. 8.4.1 Transient Protection
      2. 8.4.2 Output Short-Circuit Measurements
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 第三方产品免责声明
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 接收文档更新通知
    4. 9.4 支持资源
    5. 9.5 Trademarks
    6. 9.6 静电放电警告
    7. 9.7 术语表
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.3.4 Inrush Current, Overcurrent, and Short Circuit Protection

TPS2597xx incorporates four levels of protection against overcurrent:

  1. Adjustable slew rate (dVdt) for inrush current control
  2. Adjustable threshold (ILIM) for overcurrent protection during start-up or steady-state
  3. Adjustable threshold (ISC) for fast-trip response to severe overcurrent during start-up or steady-state
  4. Fixed threshold (IFT) for fast-trip response to quickly protect against hard output short-circuits during steady-state