S32K1 Microcontrollers for Automotive General Purpose
Quad LIN Commander Transceiver for In-Vehicle Subnetworks
The TJA1124 is a quad local interconnect network (LIN) commander 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.
Product Details
Features
General Features
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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
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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 Longevity Program
- This product is included in the NXP Product Longevity Program ensuring a stable supply of products for your embedded designs. The TJA1124 is included in the 15-year program.
Part numbers include: TJA1124AHG, TJA1124BHG, TJA1124CHG.
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Documentation
Quick reference to our documentation types.
Design Resources
Hardware
Quick reference to our
board types.
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