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TLIN2021ADRQ1

TITLIN2021ADRQ1

Texas Instruments
1/1 Transceiver Half LIN 8-SOIC
Active

Overview

The TLIN2021ADRQ1 is a Local Interconnect Network (LIN) physical layer transceiver with integrated wake-up and protection features, specifically designed for automotive and industrial applications. It supports data rates up to 20 kbps and is compliant with LIN 2.0 through LIN 2.2A and ISO 17987-4 standards. The device is AEC-Q100 Grade 1 qualified and functional safety-capable, making it suitable for rigorous 12V and 24V vehicle environments.

Why Choose This Part

This transceiver offers a wide supply range of 4.5V to 45V and is fault-tolerant up to +/- 60V on the LIN bus, ensuring high reliability during load dump events. It features extremely low sleep current of 12 uA and includes an INH pin for controlling system-level power regulators, which simplifies low-power system design. The integrated 45-kOhm pull-up resistor and glitch-free power-up/down performance reduce external component count and improve bus stability.

Applications

Automotive Body Control
Ideal for door modules, window lifters, and seat controllers where low-speed, cost-effective communication is required.
Interior Lighting Systems
Controls RGB LED modules and ambient lighting clusters across the vehicle cabin.
Industrial Sensor Networks
Provides a robust communication interface for actuators and sensors in industrial automation environments using LIN protocols.
Climate Control Systems
Facilitates communication between HVAC control units and air flap actuators.

Key Specifications

Type Transceiver
Duplex Half
Protocol LIN
Data Rate 20kbps, 100kbps
Mounting Type Surface Mount
Package / Case 8-SOIC (0.154", 3.90mm Width)
Voltage - Supply 4.5V ~ 45V
Receiver Hysteresis 500 mV
Operating Temperature -40degC ~ 125degC
Supplier Device Package 8-SOIC
Number of Drivers/Receivers 1/1

Getting Started

To evaluate this transceiver, use the TLIN2021EVM evaluation module which provides easy access to the LIN bus, VSUP, and logic pins. Ensure proper thermal management of the 8-SOIC package and verify that the TXD dominant time-out feature aligns with your slowest required baud rate. Development requires a standard MCU with a UART interface and a LIN-compatible software stack.

TLIN2021 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Duplex Data Rate Package Voltage Stock
TLIN2021ADRQ1 (this part) Half 20k SOIC-8 4.5V
TLIN2021DRQ1 Full 100K SOIC-8 4.5V 7,140
TLIN2021DRBRQ1 Full 100k VDFN-8 4.5V

Also Consider

ATA663211 MCHPMicrochip Technology - An AEC-Q100 qualified LIN transceiver with very low current consumption in silent mode.