JAJSG62B May   2018  – January 2024 ESDS302 , ESDS304

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings - JEDEC Specifications
    3. 5.3 ESD Ratings - IEC Specifications
    4. 5.4 Recommended Operating Conditions
    5. 5.5 Thermal Information
    6. 5.6 Electrical Characteristics
    7. 5.7 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Signal Range
        2. 7.2.2.2 Operating Frequency
      3. 7.2.3 Application Curves
    3. 7.3 Power Supply Recommendations
    4. 7.4 Layout
      1. 7.4.1 Layout Guidelines
      2. 7.4.2 Layout Examples
  9. 8 Device and Documentation Support
    1. 8.1 ドキュメントの更新通知を受け取る方法
    2. 8.2 サポート・リソース
    3. 8.3 Trademarks
    4. 8.4 静電気放電に関する注意事項
    5. 8.5 用語集
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

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発注情報

7.2.1 Design Requirements

A typical operation for the ESDS304 would be protecting a high speed dataline similar to one shown in Figure 7-1. In this example, the ESDS304 is protecting an Ethernet PHY's data lines that has a nominal operating voltage of 3.6V. Many of the Ethernet interfaces that connect to long cables require protection against ±1kV surge test through a 42Ω coupling resistor and a 0.5μF capacitor, equaling roughly 24 A of surge current. Without any input protection, if a surge event is caused by lightning, coupling, ringing, or any other fault condition, this input voltage will rise to hundreds of volts for multiple microseconds, harming the device. For Ethernet 1000Base-T (1Gbps), application design parameters listed in Table 7-1 are known.

Table 7-1 Design Parameters
DESIGN PARAMETERVALUE
Single ended signal voltage range on differential data line pairs0 to 3.6V
Operating Frequency125MHz