JAJSGC8B October   2018  – January 2020 TPS25982

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     概略回路図
  4. 4 改訂履歴
  5. 5 デバイス比較表
  6. 6 概要 (続き)
  7. 7 Pin Configuration and Functions
    1.     Pin Functions
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 Recommended Operating Conditions
    4. 8.4 Thermal Information
    5. 8.5 Electrical Characteristics
    6. 8.6 Timing Requirements
    7. 8.7 Switching Characteristics
    8. 8.8 Typical Characteristics
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Undervoltage Protection (UVLO and UVP)
      2. 9.3.2 Overvoltage Protection (OVP)
      3. 9.3.3 Inrush Current, Overcurrent, and Short-Circuit Protection
        1. 9.3.3.1 Slew Rate and Inrush Current Control (dVdt)
        2. 9.3.3.2 Circuit Breaker
        3. 9.3.3.3 Active Current Limiting
        4. 9.3.3.4 Short-Circuit Protection
      4. 9.3.4 Overtemperature Protection (OTP)
      5. 9.3.5 Analog Load Current Monitor (IMON)
      6. 9.3.6 Power Good (PG)
      7. 9.3.7 Load Detect/Handshake (LDSTRT)
    4. 9.4 Fault Response
    5. 9.5 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application: Standby Power Rail Protection in Datacenter Servers
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Device Selection
        2. 10.2.2.2 Setting the Current Limit Threshold: RILIM Selection
        3. 10.2.2.3 Setting the Undervoltage Lockout Set Point
        4. 10.2.2.4 Choosing the Current Monitoring Resistor: RIMON
        5. 10.2.2.5 Setting the Output Voltage Ramp Time (TdVdt)
          1. 10.2.2.5.1 Case 1: Start-Up Without Load: Only Output Capacitance COUT Draws Current
          2. 10.2.2.5.2 Case 2: Start-Up With Load: Output Capacitance COUT and Load Draw Current
        6. 10.2.2.6 Setting the Load Handshake (LDSTRT) Delay
        7. 10.2.2.7 Setting the Transient Overcurrent Blanking Interval (tITIMER)
        8. 10.2.2.8 Setting the Auto-Retry Delay and Number of Retries
      3. 10.2.3 Application Curves
    3. 10.3 System Examples
      1. 10.3.1 Optical Module Power Rail Path Protection
        1. 10.3.1.1 Design Requirements
        2. 10.3.1.2 Device Selection
        3. 10.3.1.3 External Component Settings
        4. 10.3.1.4 Voltage Drop
        5. 10.3.1.5 Application Curves
      2. 10.3.2 Input Protection for 12-V Rail Applications: PCIe Cards, Storage Interfaces and DC Fans
  11. 11Power Supply Recommendations
    1. 11.1 Transient Protection
    2. 11.2 Output Short-Circuit Measurements
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13デバイスおよびドキュメントのサポート
    1. 13.1 ドキュメントのサポート
      1. 13.1.1 関連資料
        1. 13.1.1.1 関連リンク
    2. 13.2 ドキュメントの更新通知を受け取る方法
    3. 13.3 コミュニティ・リソース
    4. 13.4 商標
    5. 13.5 静電気放電に関する注意事項
    6. 13.6 Glossary
  14. 14メカニカル、パッケージ、および注文情報

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

10.3.2 Input Protection for 12-V Rail Applications: PCIe Cards, Storage Interfaces and DC Fans

TPS25982 eFuse provides inrush current management and also protects the system from most common faults such as undervoltage, overvoltage and overcurrents. The combination of high current support along with low ON-resistance makes TPS25982 eFuse an ideal protection solution for PCIe cards, Storage Interfaces and DC Fan loads. The external component values can be calculated by following the design procedure outlined in Detailed Design Procedure. Alternatively, a spreadsheet design tool TPS25982xx Design Calculator is available for simplified design efforts.