Product details

Protocols LIN, SBC Number of channels (#) 1 Supply voltage (V) 5.5 to 28 Bus fault voltage (V) -58 to 58 Signaling rate (Max) (Mbps) 0.2 Rating Automotive Operating temperature range (C) -40 to 125 Low power mode Sleep Isolated No
Protocols LIN, SBC Number of channels (#) 1 Supply voltage (V) 5.5 to 28 Bus fault voltage (V) -58 to 58 Signaling rate (Max) (Mbps) 0.2 Rating Automotive Operating temperature range (C) -40 to 125 Low power mode Sleep Isolated No
VQFN (RGY) 20
  • AEC-Q100 (Grade 1): Qualified for automotive applications
  • Local interconnect network (LIN) physical layer specification LIN 2.2A, ISO 17987–4:2016 and SAE J2602:2021 compliant
  • Integrated watchdog supervisor configurable by pin or serial peripheral interface, SPI
  • Enhanced features supporting 12-V applications
    • ±58 V LIN bus fault protection
    • 3.3 V ( TLIN14313-Q1) or 5 V ( TLIN14315-Q1) LDO output supporting 125 mA from 12 V supply
    • High-side switch with open load and short circuit detection controlled by 10-bit PWM or timer
    • LIMP pin configurable as a high-side switch
    • Configurable WAKE pin supporting different input thresholds or methods
    • Sleep mode: ultra-low current consumption allows wake up event from:
      • LIN bus
      • Local wake up through WAKE
        • Cyclic and static sensing
  • Protection Features:
    • ESD protection
    • Under voltage protection on VSUP and VCC
    • TXD dominant time out (DTO) protection
    • Thermal shutdown protection
  • Integrated battery voltage monitor
  • Available in leadless QFN (20) package with improved automated optical inspection (AOI) capability
  • AEC-Q100 (Grade 1): Qualified for automotive applications
  • Local interconnect network (LIN) physical layer specification LIN 2.2A, ISO 17987–4:2016 and SAE J2602:2021 compliant
  • Integrated watchdog supervisor configurable by pin or serial peripheral interface, SPI
  • Enhanced features supporting 12-V applications
    • ±58 V LIN bus fault protection
    • 3.3 V ( TLIN14313-Q1) or 5 V ( TLIN14315-Q1) LDO output supporting 125 mA from 12 V supply
    • High-side switch with open load and short circuit detection controlled by 10-bit PWM or timer
    • LIMP pin configurable as a high-side switch
    • Configurable WAKE pin supporting different input thresholds or methods
    • Sleep mode: ultra-low current consumption allows wake up event from:
      • LIN bus
      • Local wake up through WAKE
        • Cyclic and static sensing
  • Protection Features:
    • ESD protection
    • Under voltage protection on VSUP and VCC
    • TXD dominant time out (DTO) protection
    • Thermal shutdown protection
  • Integrated battery voltage monitor
  • Available in leadless QFN (20) package with improved automated optical inspection (AOI) capability

The TLIN1431x-Q1 is a local interconnect network (LIN) system basis chip (SBC) that integrates a watchdog, high-side switch, Limp home capability and highly configurable WAKE input pin. The device self-determines the control method, pin or serial peripheral interface (SPI), at power up. The watchdog defaults to a window watchdog for both control methods but for flexibility the device can be configured as a window or timeout watchdog with greater than 20 different time windows when SPI control is used.

The LIN transceiver provides a 200 kbps fast mode for end of line programming. A high-side switch with diagnostic capability is provided for on board LED. The highly configurable WAKE pin can be used with the high-side switch for cyclic sensing, thus, reducing the ECU sleep current. The WKRQ/INH pin can be configured for a digital wake output (WKRQ) or a VSUP based inhibit (INH) enable pin for an external supply.

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The TLIN1431x-Q1 is a local interconnect network (LIN) system basis chip (SBC) that integrates a watchdog, high-side switch, Limp home capability and highly configurable WAKE input pin. The device self-determines the control method, pin or serial peripheral interface (SPI), at power up. The watchdog defaults to a window watchdog for both control methods but for flexibility the device can be configured as a window or timeout watchdog with greater than 20 different time windows when SPI control is used.

The LIN transceiver provides a 200 kbps fast mode for end of line programming. A high-side switch with diagnostic capability is provided for on board LED. The highly configurable WAKE pin can be used with the high-side switch for cyclic sensing, thus, reducing the ECU sleep current. The WKRQ/INH pin can be configured for a digital wake output (WKRQ) or a VSUP based inhibit (INH) enable pin for an external supply.

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Technical documentation

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Type Title Date
* Data sheet TLIN1431-Q1 Automotive LIN SBC with Integrated High-Side Switch and Watchdog datasheet PDF | HTML 08 Jul 2019
User guide TLIN1431EVM User's Guide (Rev. A) PDF | HTML 23 Jun 2022
Application note TLIN1431-Q1 Startup Guide PDF | HTML 07 Jun 2022
Certificate TLIN1431EVM EU RoHS Declaration of Conformity (DoC) 09 May 2022

Design & development

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Evaluation board

TLIN1431EVM — TLIN1431-Q1 LIN evaluation module with WAKE, HSS, and watchdog

This EVM can be used to evaluate the TLIN1431-Q1 family of devices, including the TLIN14315RGY and the TLIN14313RGY. All IC signals are available on the board, and features of the TLIN1431-Q1 are accessible through the features of the board.

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PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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TINA-TI SPICE-based analog simulation program

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
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VQFN (RGY) 20 View options

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