ZHCSLG4B July   2020  – May 2022 TLIN1027-Q1

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 ESD Ratings - IEC
    4. 6.4 Thermal Information
    5. 6.5 Recommended Operating Conditions
    6. 6.6 Electrical Characteristics
    7. 6.7 Switching Characteristics
    8. 6.8 Timing Requirements
    9. 6.9 Typical Characteristics
  7. 7 Parameter Measurement Information
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1  LIN (Local Interconnect Network) Bus
        1. 8.3.1.1 LIN Transmitter Characteristics
        2. 8.3.1.2 LIN Receiver Characteristics
          1. 8.3.1.2.1 Termination
      2. 8.3.2  TXD (Transmit Input and Output)
      3. 8.3.3  RXD (Receive Output)
      4. 8.3.4  VSUP (Supply Voltage)
      5. 8.3.5  GND (Ground)
      6. 8.3.6  EN (Enable Input)
      7. 8.3.7  Protection Features
      8. 8.3.8  Bus Stuck Dominant System Fault: False Wake-Up Lockout
      9. 8.3.9  Thermal Shutdown
      10. 8.3.10 Under Voltage on VSUP
      11. 8.3.11 Unpowered Device and LIN Bus
    4. 8.4 Device Functional Modes
      1. 8.4.1 Normal Mode
      2. 8.4.2 Sleep Mode
      3. 8.4.3 Standby Mode
      4. 8.4.4 Wake-Up Events
        1. 8.4.4.1 Wake-Up Request (RXD)
        2. 8.4.4.2 Mode Transitions
  9. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedures
        1. 9.2.2.1 Normal Mode Application Note
        2. 9.2.2.2 Standby Mode Application Note
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 支持资源
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 术语表
  13. 13Mechanical, Packaging, and Orderable Information

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8.3.3 RXD (Receive Output)

RXD is the interface to the MCU’s LIN protocol controller or SCI and UART, which reports the state of the LIN bus voltage. LIN recessive (near VBattery) is represented by a high level on the RXD and LIN dominant (near ground) is represented by a low level on the RXD pin. The RXD output structure is an open-drain output stage. This allows the device to be used with 3.3 V and 5 V I/O microcontrollers. If the microcontroller’s RXD pin does not have an integrated pull-up, an external pull-up resistor to the microcontroller I/O supply voltage is required. In standby mode the RXD pin is driven low to indicate a wake-up request from the LIN bus.