NXP TJA1042T/CM,118: A High-Performance CAN Transceiver for Automotive Network Systems
The evolution of automotive electronics towards greater autonomy, connectivity, and electrification demands robust and reliable communication backbones. At the heart of these in-vehicle networks lies the Controller Area Network (CAN) protocol, and its performance is critically dependent on the physical layer transceivers that interface the microcontroller with the physical bus. The NXP TJA1042T/CM,118 stands out as a premier solution, engineered to meet the stringent requirements of modern automotive applications.
This transceiver is designed to provide an intermediate interface between the protocol controller and the physical two-wire CAN bus. It is fully compliant with the ISO 11898-2:2016 standard, ensuring interoperability within global automotive networks. A key feature of the TJA1042T/CM,118 is its exceptional electromagnetic compatibility (EMC) and electrostatic discharge (ESD) protection. With high ESD robustness of up to ±8 kV (IEC 61000-4-2), it offers superior resilience against electrical transients commonly encountered in the harsh automotive environment, significantly enhancing system reliability and reducing the need for additional protective components.
Furthermore, the device boasts very low electromagnetic emissions (EME), which is paramount for minimizing interference with sensitive radio frequency systems and other electronic components within the vehicle. This low emission characteristic, combined with its high immunity to electromagnetic interference (EMI), ensures data integrity and stable communication even in the presence of significant noise.
The TJA1042T/CM,118 supports multiple operation modes, including a very low-current Standby mode with bus wake-up capability. This functionality is essential for modern energy-efficient architectures, particularly in electric vehicles where minimizing quiescent current is vital for extending battery life during parked or sleep states. The integrated fail-safe features, such as undervoltage detection and thermal protection, guard against system malfunctions, contributing to overall functional safety goals.
Its high-speed performance supports CAN FD (Flexible Data-Rate) data phases, enabling faster data throughput necessary for the increasing volume of data exchanged between sensors, actuators, and control units. This makes it an ideal choice for powertrain, chassis, body control, and gateway modules.
ICGOOFind: The NXP TJA1042T/CM,118 is a cornerstone for building resilient and high-performance automotive network systems. Its combination of robust ESD protection, low electromagnetic emissions, and energy-efficient sleep modes makes it a superior choice for designers aiming to achieve reliability, data integrity, and compliance with stringent automotive standards.
Keywords: CAN Transceiver, Automotive EMC, Low Power Mode, ESD Protection, CAN FD.
