SLLSF31A May   2021  – December 2021 TCAN1162-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  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 Receiving Notification of Documentation Updates
    3. 13.3 Support Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
9.4.2.2.2 CAN Autonomous: Inactive and Active

When the CAN transceiver is in standby mode or sleep mode the CAN bias circuit is switched off and the transceiver moves to the autonomous inactive state. In the autonomous inactive state the CAN pins are biased to GND. When a valid wake-up event occurs the CAN bus is biased to 2.5 V. If the controller does not transition the TCAN1162-Q1 into normal mode before the tSILENCE timer expires, then the CAN biasing circuit is again switched off and the CAN pins are biased to ground.

The CAN transceiver switches to the CAN autonomous mode if any of the following conditions are met:

  • The TCAN1162-Q1 transitions from CAN off mode to CAN autonomous inactive
  • The TCAN1162-Q1 transitions from normal mode to standby mode or fail-safe mode or sleep mode and t < tSILENCE
  • t > tSILENCE and the TCAN1162-Q1 transitions from normal mode to standby mode or fail-safe mode or sleep mode

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

  • A valid wake-up event
  • The TCAN1162-Q1 transitions to normal mode and no undervoltage faults exist.

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

  • t > tSILENCE and the TCAN1162-Q1 transitions to standby mode, sleep mode, or fail-safe mode.