JAJSD66A May   2017  – February 2022 SN65HVD1781A-Q1

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings—AEC
    3. 6.3 ESD Ratings—IEC
    4. 6.4 Recommended Operating Conditions
    5. 6.5 Thermal Information
    6. 6.6 Electrical Characteristics
    7. 6.7 Power Dissipation Ratings
    8. 6.8 Switching Characteristics
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Receiver Failsafe
      2. 8.3.2 Hot-Plugging
    4. 8.4 Device Functional Modes
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
        1. 9.2.1.1 Data Rate and Bus Length
        2. 9.2.1.2 Bus Loading
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Stub Length
        2. 9.2.2.2 Receiver Failsafe
      3. 9.2.3 Application Curve
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Device Support
    2. 12.2 Documentation Support
      1. 12.2.1 Related Documentation
    3. 12.3 Receiving Notification of Documentation Updates
    4. 12.4 Community Resources
    5. 12.5 Trademarks
  13. 13Mechanical, Packaging, and Orderable Information

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

9.2.2 Detailed Design Procedure

Although the SN65HVD1781A-Q1 is internally protected against human-body-model ESD strikes up to ±16 kV, additional protection against higher-energy transients can be provided at the application level by implementing external protection devices.

Figure 9-4 shows a protection circuit intended to withstand ±8-kV IEC ESD (per IEC 61000-4-2) as well as ±4-kV EFT (per IEC 61000-4-4).

GUID-7376D172-A3AA-4A81-86E4-9D631FE02978-low.gifFigure 9-4 RS-485 Transceiver with External Transient Protection
Table 9-1 Bill of Materials
DEVICEFUNCTIONORDER NUMBERMANUFACTURER
XCVRRS-485 TransceiverSN65HVD1781A-Q1TI
R1, R210-Ω, Pulse-Proof Thick-Film ResistorCRCW0603010RJNEAHPVishay
TVSBidirectional 600-W Transient SuppressorSMBJ43CALittelfuse