SLVSN40 October   2026 TLIN921-Q1

ADVANCE INFORMATION  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration 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 Thermal Information
    5. 5.5 Recommended Operating Conditions
    6. 5.6 Electrical Characteristics
    7. 5.7 Power Supply Characteristics
    8. 5.8 AC 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  LIN
        1. 7.3.1.1 LIN Transmitter Characteristics
        2. 7.3.1.2 LIN Receiver Characteristics
          1. 7.3.1.2.1 Termination
      2. 7.3.2  TXD
      3. 7.3.3  RXD
      4. 7.3.4  VSUP
      5. 7.3.5  GND
      6. 7.3.6  EN
      7. 7.3.7  WAKE
      8. 7.3.8  INH
      9. 7.3.9  Local Faults
      10. 7.3.10 TXD Dominant Time-Out (DTO)
      11. 7.3.11 Bus Stuck Dominant System Fault: False Wake-Up Lockout
      12. 7.3.12 Thermal Shutdown
      13. 7.3.13 Under Voltage on VSUP
      14. 7.3.14 Unpowered Device
    4. 7.4 Device Functional Modes
      1. 7.4.1 Normal Mode
      2. 7.4.2 Sleep Mode
      3. 7.4.3 Standby Mode
      4. 7.4.4 Wake-Up Events
        1. 7.4.4.1 Local Wake-Up (LWU) using the WAKE Input Terminal
        2. 7.4.4.2 Wake-Up Request (RXD)
  9. 8 Application Information Disclaimer
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedures
        1. 8.2.2.1 Normal Mode Application Note
        2. 8.2.2.2 TXD Dominant State Time-Out Application Note
        3. 8.2.2.3 Standby Mode Application Note
      3. 8.2.3 Application Curves
    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 Documentation Support
    2. 9.2 Receiving Notification of Documentation Updates
    3. 9.3 Support Resources
    4. 9.4 Trademarks
    5. 9.5 Electrostatic Discharge Caution
    6. 9.6 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

8.2.2.3 Standby Mode Application Note

If the TLIN921-Q1 detects an under voltage on VSUP the RXD pin transitions low signaling to the controller that the TLIN921-Q1 is in standby mode. Return the transceiver to sleep mode for the lowest power state.