ZHCSWS8E September   2010  – October 2024 SN65HVD1780-Q1 , SN65HVD1781-Q1 , SN65HVD1782-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1  Absolute Maximum Ratings
    2. 5.2  ESD Ratings—AEC
    3. 5.3  ESD Ratings—IEC
    4. 5.4  Recommended Operating Conditions
    5. 5.5  Thermal Information
    6. 5.6  Electrical Characteristics
    7. 5.7  Power Dissipation Ratings
    8. 5.8  Switching Characteristics
    9. 5.9  Package Dissipation Ratings
    10. 5.10 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Bus Fault Conditions
      2. 7.3.2 Receiver Failsafe
      3. 7.3.3 Hot-Plugging
    4. 7.4 Device Functional Modes
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Data Rate and Bus Length
        2. 8.2.1.2 Bus Loading
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Stub Length
        2. 8.2.2.2 Receiver Failsafe
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
      1. 9.1.1 第三方米6体育平台手机版_好二三四免责声明
    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

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8.2.2 Detailed Design Procedure

Although the SN65HVD178x-Q1 family of devices is internally protected against human-body-model ESD strikes up to 16kV, additional protection against higher-energy transients can be provided at the application level by implementing external protection devices.

Figure 8-4 shows a protection circuit intended to withstand 8kV IEC ESD (per IEC 61000-4-2) as well as 4kV EFT (per IEC 61000-4-4).

SN65HVD1780-Q1 SN65HVD1781-Q1 SN65HVD1782-Q1 RS-485 Transceiver with External Transient Protection Figure 8-4 RS-485 Transceiver with External Transient Protection
Table 8-1 Bill of Materials
DEVICEFUNCTIONORDER NUMBERMANUFACTURER(1)
XCVRRS-485 TransceiverSN65HVD178x-Q1TI
R1, R210Ω, Pulse-Proof Thick-Film ResistorCRCW0603010RJNEAHPVishay
TVSBidirectional 600W Transient SuppressorSMBJ43CALittlefuse
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