Home Interface System basis chips (SBCs)
Home
Interface
System basis chips (SBCs)

TLIN1431-Q1

ACTIVE

Automotive LIN SBC for 12-V systems with integrated VREG and watchdog

Order now
Data sheet

TLIN1431-Q1

ACTIVE
Data sheet Order now

Product details

Type Mid-range Protocols LIN Number of channels 1 Signaling rate (max) (Mbps) 0.2 Bus fault voltage (V) -58 to 58 Iout (max) (mA) 125 Regulated outputs (#) 1 Step-down DC/DC converter 0 LDO 1 LDO Vout (typ) (V) 3.3, 5 Watchdog type Integrated, Timeout, Window Low-power mode Selective Wake, Sleep, Standby Rating Automotive
Type Mid-range Protocols LIN Number of channels 1 Signaling rate (max) (Mbps) 0.2 Bus fault voltage (V) -58 to 58 Iout (max) (mA) 125 Regulated outputs (#) 1 Step-down DC/DC converter 0 LDO 1 LDO Vout (typ) (V) 3.3, 5 Watchdog type Integrated, Timeout, Window Low-power mode Selective Wake, Sleep, Standby Rating Automotive
VQFN (RGY) 20 15.75 mm² (4.5 mm × 3.5 mm)
  • AEC-Q100 (Grade 1): Qualified for automotive applications
  • Functional safety-capable
  • 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
  • Functional safety-capable
  • 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.

space

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.

space
filter Find other System basis chips (SBCs)
Download View video with transcript Video

Similar products you might be interested in

open-in-new Compare alternates
Similar functionality to the compared device.
TLIN1028-Q1 ACTIVE Automotive local interconnect network (LIN) transceiver with integrated voltage regulator LIN SBC with integrated LDO

Technical documentation

No results found. Please clear your search and try again.
View all 10
Top documentation Type Title Format options Date
* Data sheet TLIN1431-Q1 Automotive LIN SBC with Integrated High-Side Switch and Watchdog datasheet (Rev. A) PDF | HTML Dec 14, 2022
Application brief System Basis Chips (SBCs) 101: A Beginner’s Guide to CAN and LIN SBCs PDF | HTML Dec 3, 2025
Product overview System Basis Chips (SBCs) 101 - Exploration of TI's SBC Portfolio PDF | HTML Nov 20, 2025
Functional safety information TLIN1431-Q1 Functional Safety Analysis Report Summary (Rev. A) PDF | HTML Aug 6, 2025
Technical article System basis chips 101 - A beginner's guide to CAN, CAN FD and LIN SBCs (Rev. A) PDF | HTML Mar 27, 2024
Application brief Full-Featured Automotive Side Mirror PDF | HTML Mar 15, 2024
Functional safety information TLIN1431x-Q1 Functional Safety Manual PDF | HTML Dec 13, 2022
Application note TLIN1431-Q1 Startup Guide PDF | HTML Jun 7, 2022
Certificate TLIN1431EVM EU RoHS Declaration of Conformity (DoC) May 9, 2022
Functional safety information TLIN1431-Q1 Functional Safety Report PDF | HTML Jan 3, 2022

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

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.

User guide: PDF | HTML
Supported products & hardware
In stock
Limit:
??asset.out-of-stock-ti_en_US??
Not available
Design tool

SBC-MCU-POWER-DESIGN — Interactive power compatibility matrix for TI Bus Protocol Devices and MCUs

Interactive power compatibility matrix for TI Bus Protocol Devices and MCUs
Supported products & hardware
Package Pins CAD symbols, footprints & 3D models
VQFN (RGY) 20 Ultra Librarian
TI's Standard Terms and Conditions for Evaluation Items apply.

Ordering & quality

Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

Support & training

TI E2E™ forums with technical support from TI engineers

View all forum topics

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos