JAJSND9A May   2021  – November 2021 TCAN11623-Q1 , TCAN11625-Q1

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 概要 (続き)
  6. 6 Pin Configurations and Functions (TCAN11625)
  7. 7 Pin Configurations and Functions (TCAN11623)
  8. 8 Specifications
    1. 8.1 Absolute Maximum Ratings
    2. 8.2 ESD Ratings
    3. 8.3 ESD Ratings IEC Specification
    4. 8.4 Recomended Operating Conditions
    5. 8.5 Thermal Information
    6. 8.6 Power Supply Characteristics
    7. 8.7 Electrical Characteristics
    8. 8.8 Switching Characteristics
    9. 8.9 Typical Characteristics
  9. 9 Parameter Measurement Information
  10. 10Detailed Description
    1. 10.1 Overview
    2. 10.2 Functional Block Diagram
    3. 10.3 Feature Description
      1. 10.3.1  VSUP Pin
      2. 10.3.2  VCCOUT Pin
      3. 10.3.3  VFLT Pin
      4. 10.3.4  VLDO3 Pin
      5. 10.3.5  Digital Inputs and Outputs
        1. 10.3.5.1 TXD Pin
        2. 10.3.5.2 RXD Pin
        3. 10.3.5.3 TS Pin
      6. 10.3.6  Digital Control and Timing
      7. 10.3.7  VIO Pin
      8. 10.3.8  GND
      9. 10.3.9  INH Pin
      10. 10.3.10 WAKE Pin
      11. 10.3.11 nRST Pin
      12. 10.3.12 CAN Bus Pins
      13. 10.3.13 Local Faults
        1. 10.3.13.1 TXD Dominant Timeout (TXD DTO)
        2. 10.3.13.2 Thermal Shutdown (TSD)
        3. 10.3.13.3 Under/Over Voltage Lockout
        4. 10.3.13.4 Unpowered Devices
        5. 10.3.13.5 Floating Terminals
        6. 10.3.13.6 CAN Bus Short Circuit Current Limiting
        7. 10.3.13.7 Sleep Wake Error Timer
    4. 10.4 Device Functional Modes
      1. 10.4.1 Operating Mode Description
        1. 10.4.1.1 Normal Mode
        2. 10.4.1.2 Standby Mode
        3. 10.4.1.3 Sleep Mode
          1. 10.4.1.3.1 Remote Wake Request via Wake-Up Pattern (WUP)
          2. 10.4.1.3.2 Local Wake-Up (LWU) via WAKE Input Terminal
        4. 10.4.1.4 Reset Mode
        5. 10.4.1.5 Fail-safe Mode
      2. 10.4.2 CAN Transceiver
        1. 10.4.2.1 CAN Transceiver Operation
        2. 10.4.2.2 CAN Transceiver Modes
          1. 10.4.2.2.1 CAN Off Mode
          2. 10.4.2.2.2 CAN Autonomous: Inactive and Active
          3. 10.4.2.2.3 CAN Active
        3. 10.4.2.3 Driver and Receiver Function Tables
        4. 10.4.2.4 CAN Bus States
  11. 11Application Information
    1. 11.1 Application Information Disclaimer
    2. 11.2 Typical Application
      1. 11.2.1 Design Requirements
        1. 11.2.1.1 Bus Loading, Length and Number of Nodes
      2. 11.2.2 Detailed Design Procedures
        1. 11.2.2.1 CAN Termination
    3. 11.3 Application Curves
  12. 12Power Supply Requirements
  13. 13Layout
    1. 13.1 Layout Guidelines
    2. 13.2 Layout Example
  14. 14Device and Documentation Support
    1. 14.1 Documentation Support
      1. 14.1.1 Related Documentation
    2. 14.2 Receiving Notification of Documentation Updates
    3. 14.3 サポート・リソース
    4. 14.4 Trademarks
    5. 14.5 Electrostatic Discharge Caution
    6. 14.6 Glossary
  15. 15Mechanical, Packaging, and Orderable Information

10.3.13.3 Under/Over Voltage Lockout

The supply terminals implement undervoltage and over voltage detection circuitry. If an undervoltage is detected the TCAN1162x-Q1 transitions into either reset or sleep mode depending on the undervoltage fault. An undervoltage fault on VIO causes the SBC to transition into sleep mode while an undervoltage fault on the integrated regulator causes the SBC to transition to reset mode. The SBC will remain in reset mode until the fault condition on the regulator is cleared.

If the over voltage fault is detected the TCAN1162x-Q1 transitions into fail-safe mode. These mode changes place the device in a known state which protect the system from unintended behavior. See Table 10-1

Table 10-1 Undervoltage / Over Voltage Lockout
FaultTCAN11625TCAN11623
UVIOSleep modeSleep mode
UVCCOUTReset mode—
UVFLT—Reset mode
UVLDO3—Reset mode
OVCCOUTFail-safe mode—
OVFLT—Fail-safe mode
OVLDO3—Fail-safe mode