SLLSFB7 March   2026 TLIN1124A-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 Recommended Operating Conditions
    5. 5.5 Thermal Information
    6. 5.6 Power Supply Characteristics
    7. 5.7 Electrical 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 (Local Interconnect Network) Bus
        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 TXDx (Transmit Input and Output)
      3. 7.3.3 RXDx (Receive Output)
      4. 7.3.4 VSUP (Supply Voltage)
      5. 7.3.5 VIO (logic interface supply voltage)
      6. 7.3.6 GND (Ground)
      7. 7.3.7 SLP (Sleep Input)
      8. 7.3.8 INHN (Inhibit high voltage output terminal)
      9. 7.3.9 Protection Features
        1. 7.3.9.1 TXD Dominant Time Out (TXD DTO)
        2. 7.3.9.2 LIN Dominant timeout (LIN DTO)
        3. 7.3.9.3 Thermal Shutdown
        4. 7.3.9.4 Under Voltage on VSUP and VIO
        5. 7.3.9.5 Unpowered Device and LIN Bus
    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 Wake Up Request (RXD)
        2. 7.4.4.2 Mode Transitions
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
        1. 8.2.1.1 Detailed Design Procedure
    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
    1. 11.1 Package Option Addendum
    2. 11.2 Tape and Reel Information
    3. 11.3 Mechanical Data

7.1 Overview

The TLIN1124A-Q1 device is a Quad Local Interconnect Network (LIN) physical layer transceiver, compliant to LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, ISO/DIS 17987-4, and SAE J2602-1 with integrated commander and responder termination diode and resistor along with wake-up and protection features. LIN is a single wire bidirectional bus typically used for low speed in-vehicle networks using data rates up to 20kbps. The LIN receiver supports data rates up to 100kbps for in-line programming. The device supports 12V battery applications with wider operating voltage (5V to 28V) and extended LIN bus-fault (±40V) protection. The device converts the LIN protocol data stream on the TXDx input into a LINx bus signal using a current-limited wave-shaping driver which reduces electromagnetic emissions (EME). The receiver converts the data stream to logic level signals that are sent to the microprocessor through the push-pull RXD output pin. Ultra-low current consumption is possible using the sleep mode which allows wake up via LIN bus or SLP pin. The integrated commander and responder diode and resistor, electrostatic discharge (ESD) protection, and fault protection allow designers to save board space in their applications. The device prevents back-feed current through LIN to the supply in case of ground shift or supply voltage disconnection.

The LIN bus has two states: dominant state (voltage near ground) and recessive state (voltage near battery). In the recessive state, the LIN bus is pulled high by the internal pull-up resistor and a series diode. The device has integrated resister and series diode for controller nodes on all four LIN channels so that no external pull-up components are required.

The TLIN1124A-Q1 support wide operating ranges with VSUP of 5V to 28V LIN bus fault protection, -40°C to 150°C junction temperature. Ultra low power consumption is achieved in sleep mode. There are two methods of to wake up the device from sleep mode; by the LIN bus and local wake-up using the SLP pin.

There are many protection features provided by the device such as HBM ESD, IEC ESD protection, under voltage protection on VSUP and VIO, TXD Dominant Time Out Protection (TXD DTO), LIN dominant timeout protection (LIN DTO), thermal shutdown protection and unpowered node or ground disconnection failsafe at system level.