JAJSGJ1H November   2002  – November 2018 SN65HVD233 , SN65HVD234 , SN65HVD235

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     Device Images
      1.      ブロック図
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Device Comparison Table
  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  Power Dissipation Ratings
    6. 8.6  Electrical Characteristics: Driver
    7. 8.7  Electrical Characteristics: Receiver
    8. 8.8  Switching Characteristics: Driver
    9. 8.9  Switching Characteristics: Receiver
    10. 8.10 Switching Characteristics: Device
    11. 8.11 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagrams
    3. 10.3 Feature Description
      1. 10.3.1 Diagnostic Loopback (SN65HVD233)
      2. 10.3.2 Autobaud Loopback (SN65HVD235)
      3. 10.3.3 Slope Control
      4. 10.3.4 Standby
      5. 10.3.5 Thermal Shutdown
    4. 10.4 Device Functional Modes
      1. 10.4.1 Driver and Receiver
  11. 11Application and Implementation
    1. 11.1 Application Information
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
        1. 11.2.1.1 Bus Loading, Length and Number of Nodes
        2. 11.2.1.2 CAN Termination
      2. 11.2.2 Detailed Design Procedure
      3. 11.2.3 Application Curve
    3. 11.3 System Example
      1. 11.3.1 ISO 11898 Compliance of SN65HVD23x Family of 3.3-V CAN Transceivers
        1. 11.3.1.1 Introduction
        2. 11.3.1.2 Differential Signal
        3. 11.3.1.3 Common-Mode Signal
        4. 11.3.1.4 Interoperability of 3.3-V CAN in 5-V CAN Systems
  12. 12Power Supply Recommendations
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14デバイスおよびドキュメントのサポート
    1. 14.1 関連リンク
    2. 14.2 ドキュメントの更新通知を受け取る方法
    3. 14.3 コミュニティ・リソース
    4. 14.4 商標
    5. 14.5 静電気放電に関する注意事項
    6. 14.6 Glossary
  15. 15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

デバイスごとのパッケージ図は、PDF版データシートをご参照ください。

メカニカル・データ（パッケージ｜ピン）
  • D|8
サーマルパッド・メカニカル・データ
発注情報

11.2.2 Detailed Design Procedure

SN65HVD233 SN65HVD234 SN65HVD235 typ_CAN_bus_llsea2.gifFigure 37. Typical CAN Bus

Termination is typically a 120-Ω resistor at each end of the bus. If filtering and stabilization of the common mode voltage of the bus is desired, then split termination may be used (see Figure 38). Split termination uses two 60-Ω resistors with a capacitor in the middle of these resistors to ground. Split termination improves the electromagnetic emissions behavior of the network by eliminating fluctuations in the bus common mode voltages at the start and end of message transmissions.

Care should be taken in the power ratings of the termination resistors used. Typically the worst case condition would be if the system power supply was shorted across the termination resistance to ground. In most cases the current flow through the resistor in this condition would be much higher than the transceiver's current limit.

SN65HVD233 SN65HVD234 SN65HVD235 CAN_bus_term_llsea2.gifFigure 38. CAN Bus Termination Concepts