SLLSF31B June   2025  – July 2025 TCAN1162-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configurations and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 ESD Ratings IEC Specification
    4. 5.4 Recomended Operating Conditions
    5. 5.5 Thermal Information
    6. 5.6 Power Supply Characteristics
    7. 5.7 Electrical Characteristics
    8. 5.8 Switching Characteristics
    9. 5.9 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  VSUP Pin
      2. 7.3.2  VFLT Pin
      3. 7.3.3  Digital Inputs and Outputs
      4. 7.3.4  Digital Control and Timing
      5. 7.3.5  VIO Pin
      6. 7.3.6  GND
      7. 7.3.7  INH Pin
      8. 7.3.8  WAKE Pin
      9. 7.3.9  CAN Bus Pins
      10. 7.3.10 Local Faults
        1. 7.3.10.1 TXD Dominant Timeout (TXD DTO)
        2. 7.3.10.2 Thermal Shutdown (TSD)
        3. 7.3.10.3 Under/Over Voltage Lockout
        4. 7.3.10.4 Unpowered Devices
        5. 7.3.10.5 Floating Terminals
        6. 7.3.10.6 CAN Bus Short Circuit Current Limiting
        7. 7.3.10.7 Sleep Wake Error Timer
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Mode Description
        1. 7.4.1.1 Normal Mode
        2. 7.4.1.2 Standby Mode
        3. 7.4.1.3 Sleep Mode
          1. 7.4.1.3.1 Remote Wake Request via Wake-Up Pattern (WUP)
          2. 7.4.1.3.2 Local Wake-Up (LWU) via WAKE Input Terminal
        4. 7.4.1.4 Fail-safe Mode
      2. 7.4.2 CAN Transceiver
        1. 7.4.2.1 CAN Transceiver Operation
        2. 7.4.2.2 CAN Transceiver Modes
          1. 7.4.2.2.1 CAN Off Mode
          2. 7.4.2.2.2 CAN Autonomous: Inactive and Active
          3. 7.4.2.2.3 CAN Active
        3. 7.4.2.3 Driver and Receiver Function Tables
        4. 7.4.2.4 CAN Bus States
  9. 8 Application Information
    1. 8.1 Application Information Disclaimer
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Bus Loading, Length and Number of Nodes
      2. 8.2.2 Detailed Design Procedures
        1. 8.2.2.1 CAN Termination
    3. 8.3 Application Curves
    4. 8.4 Power Supply Requirements
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
      2. 8.5.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information
7.4.2.2.3 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.