TJA1124 | Quad LIN Commander Transceiver | NXP Semiconductors

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The TJA1124 is a quad local interconnect network (LIN) channel device. It provides the interface between a LIN commander protocol controller and the physical bus in a LIN network. Each of the four channels contains a LIN transceiver and LIN commander termination.

The TJA1124 is primarily intended for in-vehicle sub-networks using baud rates up to 20 kBd and is compliant with LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A, ISO 17987-4:2016 (12 V LIN) and SAE J2602-1.

Power consumption is very low in low power mode. However, the TJA1124 can still be woken up via pins SLP and LIN1 to LIN4.

Data Sheet

Product Details

Block Diagram

TJA1124

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Features

General Features

Four LIN commander channels in a single package:
- LIN transceiver.
- LIN commander termination consisting of a diode and a pull-up resistor.
Very low current consumption in Low-Power mode with wake-up via SLP or LIN pins.
Option to control an external voltage regulator via the INHN output.
Bus signal shaping optimized for baud rates up to 20 kBd.
VIO input for direct interfacing with 3.3 V and 5 V microcontrollers.
Passive behavior in an unpowered state.
Undervoltage detection.
K-line compatible.
Leadless DHVQFN24 package (3.5 mm x 5.5 mm) supporting improved Automated Optical Inspection (AOI) capability.

Protection

Excellent ElectroMagnetic Immunity (EMI).
Very high ESD robustness: ±6 kV according to IEC61000-4-2 for pins LIN1 to LIN4 and BAT.
Bus terminal and battery pin protected against transients in the automotive environment (ISO 7637).
Bus terminal short-circuit proof to battery and ground.
TXD dominant timeout function.
LIN dominant timeout function.
Thermal protection.

Certifications/Standards

Compliant with:
- LIN 2.0, LIN 2.1, LIN 2.2, LIN 2.2A.
- ISO 17987-4:2016 (12 V LIN).
- SAE J2602-1.

Product Programs

Product Longevity

Participating products are available for a minimum of 10 years. Designated participating products developed for the automotive, telecom and medical segments are available for a minimum of 15 years.

Buy/Parametrics

Part Show description	Status	Recommended Orderable Part Number	Additional Features - Analog	Product Category	Supply Voltage [Min to Max] (V)	Data Rate [max] kbps	Number of LIN Channels	Protection	Package Type
TJA1124AHG Data Sheet	Active	TJA1124AHG/1Z	INH, Integrated commander termination (900 ohms - 1100 ohms)	Quad LIN Transceiver	5 to 28	20.0	4	TXD dominant timeout, bus short-circuit to battery, overtemperature, undervoltage	DHVQFN24
TJA1124BHG Data Sheet	Active	TJA1124BHG/1Z	INH, Integrated commander termination (900 ohms - 1100 ohms) which is OFF in low power mode	Quad LIN Transceiver	5 to 28	20.0	4	TXD dominant timeout, bus short-circuit to battery, overtemperature, undervoltage	DHVQFN24
TJA1124CHG Data Sheet	Active	TJA1124CHG/1Z	INH, Integrated master termination (900 ohms - 1010 ohms)	Quad LIN Transceiver	5 to 28	20.0	4	TXD dominant timeout, bus short-circuit to battery, overtemperature, undervoltage	DHVQFN24