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

7.4 Device Functional Modes

TLIN1124A-Q1 has three main functional modes of operation: Normal, Standby and low power sleep. Besides this, there are three other states for fault/power events: Overtemperature, unpowered (OFF) and VIO undervoltage (VIO UV) mode. See Figure 7-1 for more details.

Table 7-2 Operating Modes
MODE SLP TXD RXD INHN TRANSMITTER RECEIVER
OFF X X Pull-up High impedance OFF OFF
Sleep High Weak pull-down / pull-up Pull-up High impedance OFF ON
Standby High Weak pull-down / pull-up Low if coming from sleep mode or wake event; same as previous state if transitioning from Overtemp or VIO UV mode Low OFF ON
Normal Low If high, bus recessive; if Low, bus dominant LIN bus Low ON ON
Overtemperature X X Pull-up Same as previous state OFF ON
UV VIO X X Pull-up Low OFF ON
TXD DTO Low Timer started with TXD high to low edge and DTO triggered after timer times out LIN bus Low OFF (only specific channel) ON
LIN DTO Low (normal mode) or High (standby/ sleep mode) X Same as previous state MODE dependent MODE dependent ON
TLIN1124A-Q1 Operating State Diagram Figure 7-1 Operating State Diagram
Note:
  1. If TXD pin is dominant at the time of entering normal mode the LIN transmitter is kept off until a recessive is applied to TXD
  2. Assumes VIO is above UVVIO-rising
  3. If VIO is on in sleep mode and an UVIO event takes place, the device remains in sleep mode.