1 Features

• AEC-Q100 Qualified for automotive applications

• Compliant with LIN 2.0, LIN 2.1, LIN 2.2,

LIN 2.2 A and ISO 17987–4 electrical physical

layer (EPL) specification

• Conforms to SAE J2602-1 LIN network for vehicle

applications

• Functional Safety-Capable

– Documentation available to aid in functional

safety system design

• Supports 12V LIN and 24V LIN applications

• Expanded bus fault protection range to support

48V systems

• LIN transmit data rate up to 20kbps

• LIN receive data rate up to 100kbps

• Wide operational supply voltage range: 4V to 48V

• Sleep mode: ultra-low current consumption allows

wake-up event from:

– LIN bus

– Local wake up through EN

• Power up and down glitch free operation on LIN

bus and RXD output

• Protection features:

– ±70V LIN bus fault tolerant

– Under voltage protection on VSUP

– TXD Dominant time out protection (DTO)

– Thermal shutdown protection

– Unpowered node or ground disconnection

failsafe at system level.

• Available in SOIC (8) and leadless VSON (8) with

wettable flanks

2 Applications

• Body electronics and lighting

• Infotainment and cluster

• Hybrid electric vehicles and power train systems

• Passive safety

• Appliances

3 Description

The TLIN4029A-Q1 is a local interconnect network

(LIN) physical layer transceiver with integrated wakeup

and protection features, compliant with LIN 2.0,

LIN 2.1, LIN 2.2, LIN 2.2 A and ISO 17987–4

standards. LIN is a single-wire bidirectional bus

typically used for in-vehicle networks using data

rates up to 20kbps. The TLIN4029A-Q1 is designed

to support 12V LIN and 24V LIN applications with

wider operating voltage and extended ±70V bus-fault

protection.

The LIN receiver supports data rates up to 100kbps

for faster in-line programming. The TLIN4029A-Q1

converts the data stream on the TXD input into a LIN

bus signal using a current-limited wave-shaping driver

which reduces electromagnetic emissions (EME). The

receiver converts the data stream to logic level signals

that are sent to the microprocessor through the

open-drain RXD pin. Ultra-low current consumption is

possible using the sleep mode which allows wake-up

via LIN bus or EN pin.

The TLIN4029A-Q1 integrates a resistor for LIN

responder node applications, ESD protection, and

fault protection which allow for a reduced amount

of external components in the applications. The

device prevents back-feed current through LIN to

the supply input in case of a ground shift or

supply voltage disconnection. The TLIN4029A-Q1

also includes undervoltage detection, temperature

shutdown protection, and loss-of-ground protection.