1 Features

• AEC-Q100 (Grade 1) Qualified for automotive

applications

• Compliant to LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A

and ISO 17987–4 electrical physical layer (EPL)

specification

• Compliant to SAE J2602-1 LIN Network for Vehicle

Applications

• Functional Safety-Capable

– Documentation available to aid in functional

safety system design

• Support for 12-V and 24-V applications

• Wide input operational voltage range:

– VSUP range from 4.5 V to 45 V

• LIN transmit data rate up to 20 kbps

• LIN receive data rate up to 100 kbps

• Operating modes: Normal, Standby and Sleep

• Low-power mode wake-up support with source

recognition:

– Remote wake-up over the LIN bus

– Local wake-up via the WAKE pin

– Local wake-up via EN

• Integrated 45-kΩ LIN pull-up resistor

• Control of system-level power using the INH pin

• Power-up/down glitch-free operation on LIN bus

and RXD output

• Protection features: ±60 V LIN bus fault

tolerant, 58 V load dump support, undervoltage

protection on VSUP, TXD dominant state time-out,

thermal shutdown, unpowered node or ground

disconnection fail-safe at system level

• Junction temperature from -40°C to 150°C

• Available in 8-pin SOIC, VSON with wettable

flanks, and SOT23 packages

2 Applications

• Body electronics and lighting

• Automotive infotainment and cluster

• Hybrid electric vehicles and power train systems

• Industrial transportation

3 Description

The TLIN2021A-Q1 is a local interconnect network

(LIN) physical layer transceiver. LIN is a low-speed

universal asynchronous receiver transmitter (UART)

communication protocol that supports automotive invehicle

networking.

The TLIN2021A-Q1 transmitter supports data rates up

to 20 kbps. The transceiver controls the state of the

LIN bus via the TXD pin and reports the state of the

bus on its open-drain RXD output pin. The device

has a current-limited wave-shaping driver to reduce

electromagnetic emissions (EME).

The TLIN2021A-Q1 is designed to support 12-V and

24-V applications with a wide input voltage operating

range. The device supports low-power sleep mode,

as well as wake-up from low-power mode through

wake over LIN, the WAKE pin, or the EN pin.

The device allows for system-level reductions in

battery current consumption by selectively enabling

the various power supplies that can be present on a

node through the device INH output pin.