SLLSEV0E November   2017  – March 2021 TCAN1043-Q1 , TCAN1043G-Q1 , TCAN1043H-Q1 , TCAN1043HG-Q1

PRODUCTION DATA  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Description (continued)
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 ESD Ratings IEC Specification
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Thermal Information
    6. 7.6 Dissipation Ratings
    7. 7.7 Electrical Characteristics
    8. 7.8 Switching Characteristics
    9. 7.9 Typical Characteristics
  8. Parameter Measurement Information
  9. Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Internal and External Indicator Flags (nFAULT and RXD)
      2. 9.3.2 Power-Up Flag (PWRON)
      3. 9.3.3 Wake-Up Request Flag (WAKERQ)
      4. 9.3.4 Wake-Up Source Recognition Flag (WAKESR)
      5. 9.3.5 Undervoltage Fault Flags
        1. 9.3.5.1 Undervoltage on VCC Fault
        2. 9.3.5.2 Undervoltage on VIO Fault
        3. 9.3.5.3 Undervoltage on VSUP Fault
      6. 9.3.6 CAN Bus Failure Fault Flag
      7. 9.3.7 Local Faults
        1. 9.3.7.1 TXD Dominant Timeout (TXD DTO)
        2. 9.3.7.2 TXD Shorted to RXD Fault
        3. 9.3.7.3 CAN Bus Dominant Fault
        4. 9.3.7.4 Thermal Shutdown (TSD)
        5. 9.3.7.5 RXD Recessive Fault
        6. 9.3.7.6 Undervoltage Lockout (UVLO)
        7. 9.3.7.7 Unpowered Device
        8. 9.3.7.8 Floating Terminals
        9. 9.3.7.9 CAN Bus Short Circuit Current Limiting
    4. 9.4 Device Functional Modes
      1. 9.4.1 CAN Bus States
      2. 9.4.2 Normal Mode
      3. 9.4.3 Silent Mode
      4. 9.4.4 Standby Mode
      5. 9.4.5 Go-to-Sleep Mode
      6. 9.4.6 Sleep Mode with Remote Wake and Local Wake Up Requests
        1. 9.4.6.1 Remote Wake Request via Wake Up Pattern (WUP)
        2. 9.4.6.2 Local Wake Up (LWU) via WAKE Input Terminal
      7. 9.4.7 Driver and Receiver Function Tables
      8. 9.4.8 Digital Inputs and Outputs
      9. 9.4.9 INH (Inhibit) Output
  10. 10Application Information Disclaimer
    1. 10.1 Application Information
    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. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout
      1. 12.1.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 Community Resources
    4. 13.4 Trademarks
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
  • DMT|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

CAN Bus Failure Fault Flag

The TCAN1043xx-Q1 devices are able to detect the following six faults that can occur on the CANH and CANL bus terminals. These faults are only detected in Normal mode and are only indicated via the nFAULT terminal while in Normal mode.

  1. CANH bus pin shorted VSUP
  2. CANH bus pin shorted VCC
  3. CANH bus pin shorted GND
  4. CANL bus pin shorted VSUP
  5. CANL bus pin shorted VCC
  6. CANL bus pin shorted GND

These failures are detected while transmitting a dominant signal on the CAN bus. If one of these fault conditions persists for four consecutive dominant bit transmissions, the nFAULT indicates a CAN bus failure flag in Normal mode by driving the nFAULT pin low. The CAN bus driver remains active.

The bus fault failure circuitry is able to detect bus faults for a range of differential resistance loads (RCBF) and for any time greater than tCBF_MIN.