JAJSEB3F October   2017  – May 2022 TLIN1029-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 Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 ESD Ratings - IEC
    4. 7.4 Thermal Information
    5. 7.5 Recommended Operating Conditions
    6. 7.6 Electrical Characteristics
    7. 7.7 Switching Characteristics
    8. 7.8 Timing Requirements
    9. 7.9 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 (Local Interconnect Network) Bus
        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 (Transmit Input and Output)
      3. 9.3.3  RXD (Receive Output)
      4. 9.3.4  VSUP (Supply Voltage)
      5. 9.3.5  GND (Ground)
      6. 9.3.6  EN (Enable Input)
      7. 9.3.7  Protection Features
      8. 9.3.8  TXD Dominant Time Out (DTO)
      9. 9.3.9  Bus Stuck Dominant System Fault: False Wake-Up Lockout
      10. 9.3.10 Thermal Shutdown
      11. 9.3.11 Under Voltage on VSUP
      12. 9.3.12 Unpowered Device and LIN Bus
    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 Wake-Up Request (RXD)
        2. 9.4.4.2 Mode Transitions
  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 Standby Mode Application Note
          1. 10.2.2.2.1 TXD Dominant State Timeout Application Note
      3. 10.2.3 Application Curves
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Documentation Support
      1. 13.1.1 Related Documentation
    2. 13.2 Receiving Notification of Documentation Updates
    3. 13.3 サポート・リソース
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

9.3.4 VSUP (Supply Voltage)

VSUP is the power supply pin. VSUP is connected to the battery through an external reverse-blocking diode (Figure 9-1). If there is a loss of power at the ECU level, the device has extremely low leakage from the LIN pin, which does not load the bus down. This is optimal for LIN systems in which some of the nodes are unpowered (ignition supplied) while the rest of the network remains powered (battery supplied).