JAJSEX1A December   2017  – March 2018 TVS1800

PRODUCTION DATA.  

  1. 特長
  2. アプリケーション
  3. 概要
    1.     Device Images
      1.      占有面積の比較
      2.      8/20rep%#181;sのサージ・イベントに対する電圧クランプの応答
  4. 改訂履歴
  5. Device Comparison Table
  6. Pin Configuration and Functions
    1.     Pin Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings - JEDEC
    3. 7.3 ESD Ratings - IEC
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Electrical Characteristics
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
    4. 8.4 Reliability Testing
    5. 8.5 Device Functional Modes
      1. 8.5.1 Protection Specifications
      2. 8.5.2 Minimal Derating
      3. 8.5.3 Transient Performance
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
      4. 9.2.4 Configuration Options
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 ドキュメントの更新通知を受け取る方法
    2. 12.2 コミュニティ・リソース
    3. 12.3 商標
    4. 12.4 静電気放電に関する注意事項
    5. 12.5 Glossary
  13. 13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

Detailed Design Procedure

If the TVS1800 is in place to protect the device, during a surge event the voltage will rise to the breakdown of the diode at 21 V, and then the TVS1800 will turn on, shunting the surge current to ground. With the low dynamic resistance of the TVS1800, even large amounts of surge current will have minimal impact on the clamping voltage. The dynamic resistance of the TVS1800 is around 30 mΩ, which means 40 A of surge current will cause a voltage raise of 40 A × 30 mΩ = 1.2 V. Because the device turns on at 21.3 V, this means the module input will be exposed to a maximum of 21.3 V + 1.2 V = 22.5 V during surge pulses, well within the LMZ2005 absolute maximum. This pulse is shown in and ensures robust protection of your circuit.

Finally, the small size of the device also improves fault protection by lowering the effect of fault current coupling onto neighboring traces. The small form factor of the TVS1800 allows the device to be placed extremely close to the input connector, lowering the length of the path fault current will take through the system compared to larger protection solutions.