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TLIN1441-Q1

ACTIVE

Automotive local interconnect network transceiver with integrated voltage regulator and watchdog

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Data sheet
Errata

TLIN1441-Q1

ACTIVE
Data sheet Order now

Product details

Type General-purpose Protocols LIN Number of channels 1 Signaling rate (max) (Mbps) 0.1 Supply voltage (V) 5 to 28 Bus fault voltage (V) -42 to 42 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 Sleep, Standby Rating Automotive
Type General-purpose Protocols LIN Number of channels 1 Signaling rate (max) (Mbps) 0.1 Supply voltage (V) 5 to 28 Bus fault voltage (V) -42 to 42 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 Sleep, Standby Rating Automotive
VSON (DMT) 14 13.5 mm² 4.5 x 3
  • AEC-Q100 : Qualified for automotive applications
    • Temperature grade 1: –40°C To 125°C TA
  • Local interconnect network (LIN) physical layer specification ISO/DIS 17987–4 compliant and conforms to SAE J2602 recommended practice for LIN (See SLLA494)
  • Supports 12-V applications
  • Integrated watchdog supervisor configurable by pin or serial peripheral interface SPI
  • Wide operating ranges
    • 5.5 V to 28 V supply voltage
    • ±42 V LIN bus fault protection
    • LDO output supporting 3.3 V ( TLIN14413-Q1) or 5 V ( TLIN14415-Q1)
    • Sleep mode: Ultra-low current consumption allows wake-up event from:
      • LIN bus
      • Local wake up through EN
      • Local wake up through WAKE
    • Power-up and down glitch-free operation
  • Protection features:
    • ESD protection, VSUP under-voltage protection
    • TXD dominant time out (DTO) protection, Thermal shutdown
    • Unpowered node or ground disconnection fail-safe at system level
  • VCC sources 125 mA with 12 VSUP at 100°C
  • Available in Leadless VSON (14) package with improved automated optical inspection (AOI) capability
  • AEC-Q100 : Qualified for automotive applications
    • Temperature grade 1: –40°C To 125°C TA
  • Local interconnect network (LIN) physical layer specification ISO/DIS 17987–4 compliant and conforms to SAE J2602 recommended practice for LIN (See SLLA494)
  • Supports 12-V applications
  • Integrated watchdog supervisor configurable by pin or serial peripheral interface SPI
  • Wide operating ranges
    • 5.5 V to 28 V supply voltage
    • ±42 V LIN bus fault protection
    • LDO output supporting 3.3 V ( TLIN14413-Q1) or 5 V ( TLIN14415-Q1)
    • Sleep mode: Ultra-low current consumption allows wake-up event from:
      • LIN bus
      • Local wake up through EN
      • Local wake up through WAKE
    • Power-up and down glitch-free operation
  • Protection features:
    • ESD protection, VSUP under-voltage protection
    • TXD dominant time out (DTO) protection, Thermal shutdown
    • Unpowered node or ground disconnection fail-safe at system level
  • VCC sources 125 mA with 12 VSUP at 100°C
  • Available in Leadless VSON (14) package with improved automated optical inspection (AOI) capability

The TLIN1441-Q1 is a local interconnect network (LIN) physical layer transceiver, compliant to LIN 2.2A and ISO/DIS 17987–4 standards, with an integrated low dropout (LDO) voltage regulator and watchdog. The TLIN1441-Q1 watchdog can operate in window or timeout mode and can be controlled by pins or SPI. The Pin or SPI control is established at power up by the state of pin 9 (that is, High, Z-State, Low).

LIN is a single-wire bidirectional bus typically used for low speed in-vehicle networks using data rates up to 20 kbps. The LIN receiver supports data rates up to 100 kbps for end-of-line programming. The TLIN1441-Q1 converts the LIN protocol data stream on the TXD input into a LIN bus signal. The receiver converts the data stream to logic-level signals that are sent to the microprocessor through the open-drain RXD pin. The TLIN1441-Q1 reduces system complexity by providing a 3.3 V or 5 V rail with up to 125 mA of current to power microprocessors, sensors or other devices. The TLIN1441-Q1 has an optimized current-limited wave-shaping driver which reduces electromagnetic emissions (EME).

The TLIN1441-Q1 is a local interconnect network (LIN) physical layer transceiver, compliant to LIN 2.2A and ISO/DIS 17987–4 standards, with an integrated low dropout (LDO) voltage regulator and watchdog. The TLIN1441-Q1 watchdog can operate in window or timeout mode and can be controlled by pins or SPI. The Pin or SPI control is established at power up by the state of pin 9 (that is, High, Z-State, Low).

LIN is a single-wire bidirectional bus typically used for low speed in-vehicle networks using data rates up to 20 kbps. The LIN receiver supports data rates up to 100 kbps for end-of-line programming. The TLIN1441-Q1 converts the LIN protocol data stream on the TXD input into a LIN bus signal. The receiver converts the data stream to logic-level signals that are sent to the microprocessor through the open-drain RXD pin. The TLIN1441-Q1 reduces system complexity by providing a 3.3 V or 5 V rail with up to 125 mA of current to power microprocessors, sensors or other devices. The TLIN1441-Q1 has an optimized current-limited wave-shaping driver which reduces electromagnetic emissions (EME).
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Type Title Date
* Data sheet TLIN1441-Q1 Automotive with Integrated Voltage Regulator and Watchdog datasheet (Rev. D) PDF | HTML 17 Jun 2022
* Errata TLIN1441-Q1 and TLIN2441-Q1 Duty Cycle Over VSUP 22 May 2020
Application brief SBC(시스템 기반 칩) 개론: 초보자를 위한 CAN 및 LIN SBC 가이 드 PDF | HTML 09 Dec 2025
Application brief 系統基礎晶片 (SBC) 101：CAN 和 LIN SBC 入門指南 PDF | HTML 08 Dec 2025
Application brief System Basis Chips (SBCs) 101: A Beginner’s Guide to CAN and LIN SBCs PDF | HTML 03 Dec 2025
Product overview System Basis Chips (SBCs) 101 - Exploration of TI's SBC Portfolio PDF | HTML 20 Nov 2025
Application note TLIN1441 Failsafe Mode Explanation 25 Feb 2019
Application note TLINx441 LDO Performance 16 Nov 2018
Application note TLINx441x Watchdog Configuration Guide 30 Oct 2018

Design & development

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Evaluation board

TLIN14415EVM — TLINx441x LIN transceiver with regulated LDO & watchdog EVM

This EVM can be used to evaluate the TLINx441x family of devices. The LIN bus is easily accessed via the J21 connector, along with VSUP and GND to make easy connections to real LIN systems. All IC signals are available through jumper connections, and modes are easily transitioned through the (...)
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SLLC468 — TLINx441xEVM GUI

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System basis chips (SBCs)
  • TLIN1441-Q1 — Automotive local interconnect network transceiver with integrated voltage regulator and watchdog
  • TLIN2441-Q1 — Automotive local interconnect network transceiver with integrated voltage regulator and watchdog
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Evaluation board
  • TLIN14415EVM — TLINx441x LIN transceiver with regulated LDO & watchdog EVM
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TLIN1441X IBIS Model

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