SLLSEU9D June   2019  – June 2022 TLIN1021-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Thermal Information
    4. 7.4 Recommended Operating Conditions
    5. 7.5 Power Supply Characteristics
    6. 7.6 Electrical Characteristics
    7. 7.7 AC Switching Characteristics
    8. 7.8 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  LIN
        1. 9.3.1.1 LIN Transmitter Characteristics
        2. 9.3.1.2 LIN Receiver Characteristics
          1. 9.3.1.2.1 Termination
      2. 9.3.2  TXD
      3. 9.3.3  RXD
      4. 9.3.4  VSUP
      5. 9.3.5  GND
      6. 9.3.6  EN
      7. 9.3.7  WAKE
      8. 9.3.8  INH
      9. 9.3.9  Local Faults
      10. 9.3.10 TXD Dominant Time-Out (DTO)
      11. 9.3.11 Bus Stuck Dominant System Fault: False Wake-Up Lockout
      12. 9.3.12 Thermal Shutdown
      13. 9.3.13 Under Voltage on VSUP
      14. 9.3.14 Unpowered Device
    4. 9.4 Device Functional Modes
      1. 9.4.1 Normal Mode
      2. 9.4.2 Sleep Mode
      3. 9.4.3 Standby Mode
      4. 9.4.4 Wake-Up Events
        1. 9.4.4.1 Local Wake-Up (LWU) via WAKE Input Terminal
        2. 9.4.4.2 Wake-Up Request (RXD)
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedures
        1. 10.2.2.1 Normal Mode Application Note
        2. 10.2.2.2 TXD Dominant State Time-Out Application Note
      3. 10.2.3 Application Curves
    3. 10.3 Power Supply Recommendations
    4.     Layout
      1. 10.4.1 Layout Guidelines
      2. 10.4.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

9.3.11 Bus Stuck Dominant System Fault: False Wake-Up Lockout

The TLIN1021-Q1 contains logic to detect bus stuck dominant system faults and prevents the device from waking up falsely during the system fault. Upon entering sleep mode, the device detects the state of the LIN bus. If the bus is dominant, the wake-up logic is locked out until a valid recessive on the bus clears the bus stuck dominant fault, preventing excessive current use, see Figure 9-2 and Figure 9-3.

GUID-6F424BD0-523B-4501-B755-5C4000FE5265-low.gifFigure 9-2 No Bus Fault: Entering Sleep Mode with Bus Recessive Condition and Wake-up
GUID-FB21BA1C-B9BB-43C2-B020-71C37380E6E9-low.gifFigure 9-3 Bus Fault: Entering Sleep Mode With Bus Stuck Dominant Fault, Clearing, and Wake-up