SLLSF58B July   2020  – May 2022 TLIN1027-Q1

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  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 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

8.4.2 Sleep Mode

Sleep mode is the power saving mode for the TLIN1027-Q1. Sleep mode is only entered when the EN pin is low and from normal mode. Even with extremely low current consumption in this mode, the TLIN1027-Q1 can still wake up from LIN bus through a wake-up signal or if EN is set high for ≥ tMODE_CHANGE. The LIN bus is filtered to prevent false wake-up events. The wake-up events must be active for the respective time periods (tLINBUS).

The sleep mode is entered by setting EN low for longer than tMODE_CHANGE.

While the device is in sleep mode, the following conditions exist:

  • The LIN bus driver is disabled and the internal LIN bus termination is switched off (to minimize power loss if LIN is short circuited to ground). However, the weak current pull-up is active to prevent false wake-up events in case an external connection to the LIN bus is lost.
  • The normal receiver is disabled.
  • EN input and LIN wake-up receiver are active.