ZHCSOO3A May   2021  – December 2021

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 说明（续）
  6. 6 Pin Configurations and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 ESD Ratings IEC Specification
    4. 7.4 Recomended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Power Supply Characteristics
    7. 7.7 Electrical Characteristics
    8. 7.8 Switching Characteristics
    9. 7.9 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  VSUP Pin
      2. 9.3.2  VFLT Pin
      3. 9.3.3  Digital Inputs and Outputs
        1. 9.3.3.1 TXD Pin
        2. 9.3.3.2 RXD Pin
        3. 9.3.3.3 TS Pin
      4. 9.3.4  Digital Control and Timing
      5. 9.3.5  VIO Pin
      6. 9.3.6  GND
      7. 9.3.7  INH Pin
      8. 9.3.8  WAKE Pin
      9. 9.3.9  CAN Bus Pins
      10. 9.3.10 Local Faults
        1. 9.3.10.1 TXD Dominant Timeout (TXD DTO)
        2. 9.3.10.2 Thermal Shutdown (TSD)
        3. 9.3.10.3 Under/Over Voltage Lockout
        4. 9.3.10.4 Unpowered Devices
        5. 9.3.10.5 Floating Terminals
        6. 9.3.10.6 CAN Bus Short Circuit Current Limiting
        7. 9.3.10.7 Sleep Wake Error Timer
    4. 9.4 Device Functional Modes
      1. 9.4.1 Operating Mode Description
        1. 9.4.1.1 Normal Mode
        2. 9.4.1.2 Standby Mode
        3. 9.4.1.3 Sleep Mode
          1. 9.4.1.3.1 Remote Wake Request via Wake-Up Pattern (WUP)
          2. 9.4.1.3.2 Local Wake-Up (LWU) via WAKE Input Terminal
        4. 9.4.1.4 Fail-safe Mode
      2. 9.4.2 CAN Transceiver
        1. 9.4.2.1 CAN Transceiver Operation
        2. 9.4.2.2 CAN Transceiver Modes
          1. 9.4.2.2.1 CAN Off Mode
          2. 9.4.2.2.2 CAN Autonomous: Inactive and Active
          3. 9.4.2.2.3 CAN Active
        3. 9.4.2.3 Driver and Receiver Function Tables
        4. 9.4.2.4 CAN Bus States
  10. 10Application Information
    1. 10.1 Application Information Disclaimer
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
        1. 10.2.1.1 Bus Loading, Length and Number of Nodes
      2. 10.2.2 Detailed Design Procedures
        1. 10.2.2.1 CAN Termination
    3. 10.3 Application Curves
  11. 11Power Supply Requirements
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 接收文档更新通知
    3. 13.3 支持资源
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 术语表
  14. 14Mechanical, Packaging, and Orderable Information
9.4.2.2.3 CAN Active

When the TCAN1162-Q1 is in normal mode the CAN transceiver is in active mode. The CAN driver and receiver are fully operational and CAN communication is bi-directional. The CAN bias voltage in CAN active mode is derived from:

  • VFLT

The CAN transceiver switches between the CAN autonomous inactive or active mode and CAN active mode if:

  • The TCAN1162-Q1 transitions to normal mode and no undervoltage faults exist.

The CAN transceiver blocks its transmitter and receiver after entering CAN active mode if the TXD pin is asserted low before leaving standby mode. This prevents disruptions to CAN bus in the event that the TXD pin has a TXD DTO fault.