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TLIN2441-Q1

ACTIVE

Automotive local interconnect network transceiver with integrated voltage regulator and watchdog

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Data sheet

TLIN2441-Q1

ACTIVE
Data sheet Order now

Product details

Type General-purpose Protocols LIN Number of channels 1 Signaling rate (max) (Mbps) 0.1 Bus fault voltage (V) -58 to 58 Iout (max) (mA) 70 Regulated outputs (#) 1 Step-down DC/DC converter 0 LDO 1 LDO Vout (typ) (V) 5 Watchdog type Integrated, Timeout, Window Low-power mode Selective Wake, Sleep, Standby Rating Automotive
Type General-purpose Protocols LIN Number of channels 1 Signaling rate (max) (Mbps) 0.1 Bus fault voltage (V) -58 to 58 Iout (max) (mA) 70 Regulated outputs (#) 1 Step-down DC/DC converter 0 LDO 1 LDO Vout (typ) (V) 5 Watchdog type Integrated, Timeout, Window Low-power mode Selective Wake, Sleep, Standby Rating Automotive
VSON (DMT) 14 13.5 mm² (4.5 mm × 3 mm)
  • 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 and 24 V applications
  • Integrated watchdog supervisor configurable by pin or serial peripheral interface SPI
  • Wide operating ranges
    • 5.5 V to 36 V supply voltage
    • ±58 V LIN bus fault protection
    • LDO output supporting 3.3 V ( TLIN24413-Q1) or 5 V ( TLIN24415-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 70 mA with 24 VSUP at 85°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 and 24 V applications
  • Integrated watchdog supervisor configurable by pin or serial peripheral interface SPI
  • Wide operating ranges
    • 5.5 V to 36 V supply voltage
    • ±58 V LIN bus fault protection
    • LDO output supporting 3.3 V ( TLIN24413-Q1) or 5 V ( TLIN24415-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 70 mA with 24 VSUP at 85°C
  • Available in Leadless VSON (14) package with improved automated optical inspection (AOI) capability

The TLIN2441-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 TLIN2441-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 TLIN2441-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 TLIN2441-Q1 reduces system complexity by providing a 3.3 V or 5 V rail with up to 70 mA of current to power microprocessors, sensors or other devices. The TLIN2441-Q1 has an optimized current-limited wave-shaping driver which reduces electromagnetic emissions (EME).

The TLIN2441-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 TLIN2441-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 TLIN2441-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 TLIN2441-Q1 reduces system complexity by providing a 3.3 V or 5 V rail with up to 70 mA of current to power microprocessors, sensors or other devices. The TLIN2441-Q1 has an optimized current-limited wave-shaping driver which reduces electromagnetic emissions (EME).
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TLIN2441-Q1 Automotive with Integrated Voltage Regulator and Watchdog datasheet (Rev. C) PDF | HTML Jun 17, 2022
* Errata TLIN1441-Q1 and TLIN2441-Q1 Duty Cycle Over VSUP May 22, 2020
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
Application note CAN and LIN transceiver low-power modes Feb 25, 2019
Application note TLIN1441 Failsafe Mode Explanation Feb 25, 2019
Application note TLINx441 LDO Performance Nov 16, 2018
Application note TLINx441x Watchdog Configuration Guide Oct 30, 2018
Technical article Transients in 24V automobiles PDF | HTML Feb 28, 2018

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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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TLIN2441X IBIS Model

SLLM427.ZIP (200 KB) - IBIS model
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