SLLSFS2 September   2025 TCAN6062-Q1

ADVANCE INFORMATION  

  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 Transients
    4. 5.4 Recommended Operating Conditions
    5. 5.5 Thermal Characteristics
    6. 5.6 Supply Characteristics
    7. 5.7 Dissipation Ratings
    8. 5.8 Electrical Characteristics
    9. 5.9 Switching Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
      1. 7.1.1 Signal Improvement Capability
      2. 7.1.2 CAN XL and FAST Mode
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1  Pin Description
        1. 7.3.1.1 TXD
        2. 7.3.1.2 GND
        3. 7.3.1.3 VCC
        4. 7.3.1.4 RXD
        5. 7.3.1.5 VIO (only for TCAN6062V-Q1)
        6. 7.3.1.6 CANH and CANL
        7. 7.3.1.7 STB (Standby)
      2. 7.3.2  CAN Bus States
      3. 7.3.3  Pulse-Width Modulation (PWM) for FAST Mode Signaling
        1. 7.3.3.1 PWM Detection and Timing
        2. 7.3.3.2 Transition from SIC Mode to FAST RX Mode
        3. 7.3.3.3 Transition from SIC Mode to FAST TX Mode
        4. 7.3.3.4 PWM Decoding
          1. 7.3.3.4.1 PWM Detection Resolution tDECODE
          2. 7.3.3.4.2 PWM Decoding in FAST RX Mode
          3. 7.3.3.4.3 PWM Decoding in FAST TX Mode
        5. 7.3.3.5 Transition from FAST RX/TX Modes to SIC Mode
      4. 7.3.4  Out-of-Bounds (OOB) Comparator
      5. 7.3.5  TXD Dominant Timeout (DTO)
      6. 7.3.6  CAN Bus short-circuit current limiting
      7. 7.3.7  Thermal Shutdown (TSD)
      8. 7.3.8  Undervoltage Lockout
      9. 7.3.9  Unpowered Device
      10. 7.3.10 Floating pins
    4. 7.4 Device Functional Modes
      1. 7.4.1 Operating Modes
      2. 7.4.2 Normal Mode
      3. 7.4.3 Standby Mode
        1. 7.4.3.1 Remote Wake Request via Wake-Up Pattern (WUP) in Standby Mode
      4. 7.4.4 Driver and Receiver Function
  9. 8 Application and Implementation
    1. 8.1 Typical Application
      1. 8.1.1 Design Requirements
        1. 8.1.1.1 CAN Termination
      2. 8.1.2 Detailed Design Procedures
        1. 8.1.2.1 Bus Loading, Length and Number of Nodes
    2. 8.2 System Examples
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 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
    1. 11.1 Tape and Reel Information

7.3.10 Floating pins

The TCAN6062V-Q1 has internal pull-ups on critical pins which place the device into known states if the pin floats. This internal bias should not be relied upon by design though, especially in noisy environments, but instead should be considered a failsafe protection feature.

When a CAN controller supporting open-drain outputs is used an adequate external pull-up resistor must be chosen. This ensures that the TXD output of the CAN controller maintains acceptable bit time to the input of the CAN transceiver. See Table 7-3 for details on pin bias conditions.

Table 7-3 Pin Bias
PinPull-up or Pull-downComment
TXDPull-upWeakly biases TXD towards recessive to prevent bus blockage or TXD DTO triggering
STBPull-upWeakly biases STB towards low-power standby mode to prevent excessive system power