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

10.2.3 Application Curves

TPS25982 HOTPLUG-NO-RLOAD-Apps.png
A.
COUT = 1.4 mF CdVdt = 10 nF RL(SU) = Open
Figure 54. Hot-Plug Start-Up Without Load on Output - dVdt Limited
TPS25982 OVERLOAD-server-Apps.png
A.
RILIM = 100 Ω CITIMER = 4.7 nF
Figure 56. Circuit Breaker With Transient Overcurrent Blanking Interval of 2 ms
TPS25982 SHORTCIRCUIT-server-Apps.png
1.
RILIM = 100 Ω
Figure 58. Output Hard Short-Circuit While ON
TPS25982 PowerintoSHORT-server-Apps.png
A.
Figure 60. Power-Up With Short-Circuit on Output
TPS25982 Handshake-success-Apps.png
A.
CLDSTRT = 0.1 μF
Figure 62. Successful Load Handshake (LDSTRT)
TPS25982 HOTPLUG-RLOAD-Apps.png
A.
COUT = 1.4 mF CdVdt = 10 nF RL(SU) = 10 Ω
Figure 55. Hot-Plug Start-Up With Load on Output - dVdt Limited
TPS25982 OVERLOAD-zoom-server-Apps.png
A.
RILIM = 100 Ω CITIMER = 4.7 nF CRETRY_DLY = 2.2 nF,
CNRETRY = 2.2 nF
Figure 57. Circuit Breaker - Auto-Retry 4 Times With Retry Delay of 100 ms
TPS25982 SHORTCIRCUIT-zoom-server-Apps.png
1.
RILIM = 100 Ω
Figure 59. Output Hard Short-Circuit While ON (Zoomed In)
TPS25982 PowerintoSHORT-zoom-server-Apps.png
1.
Figure 61. Power-Up With Short-Circuit on Output - Auto-Retry 4 Times With Retry Delay of 100 ms
TPS25982 Handshake-unsuccess-Apps.png
A.
CLDSTRT = 0.1 μF
Figure 63. Unsuccessful Load Handshake (LDSTRT)