Infineon TLE7251VLEXUMA1 LIN Transceiver for Automotive Network Applications

The evolution of modern vehicles is intrinsically linked to the advancement of their electronic networks. As the number of electronic control units (ECUs) grows, robust and cost-effective communication sub-networks become essential. The Infineon TLE7251VLEXUMA1 stands out as a highly integrated LIN (Local Interconnect Network) transceiver, specifically engineered to meet the stringent demands of automotive networking.

This transceiver serves as the critical physical interface between a host microcontroller's LIN protocol controller and the physical LIN bus. It is fully compliant with the latest LIN 2.2/2.2A, SAE J2602, and ISO 17987-4 standards, ensuring seamless interoperability within a vehicle's architecture. Its primary role is to translate digital signals into robust bus voltages and vice versa, providing a reliable communication link for controlling nodes like sensors, actuators, and smart switches in body electronics, comfort systems, and powertrain applications.

A key strength of the TLE7251VLEXUMA1 lies in its exceptional electromagnetic compatibility (EMC) and electrostatic discharge (ESD) protection. With a high ESD robustness of up to ±8 kV according to the IEC 61000-4-2 standard, it offers superior resilience against the harsh electrical environment of an automobile, significantly enhancing system reliability and reducing the need for additional external protection components.

Furthermore, the device features very low electromagnetic emission (EME) and high electromagnetic immunity (EMI), which is crucial for preventing interference with sensitive radio frequencies and other electronic systems. Its integrated slope control and wave-shaping capabilities contribute to these low emissions by ensuring a smooth signal transition on the bus, minimizing ringing and reflexions.

Designed for utmost reliability, the TLE7251VLEXUMA1 includes comprehensive protection features such as undervoltage detection, overtemperature shutdown, and dominant time-out function. It also supports a low-power standby mode with local and remote wake-up capability, which is vital for supporting modern energy-saving requirements in vehicles, especially with the increasing prevalence of start-stop systems.

Housed in a space-saving PG-SSO-14 package, this transceiver is optimized for automated manufacturing processes. Its AEC-Q100 qualification guarantees that it meets the rigorous quality and reliability standards required for automotive applications, operating reliably over a wide temperature range from -40°C to 125°C.

ICGOODFIND: The Infineon TLE7251VLEXUMA1 is a premier LIN transceiver that delivers superior robustness, low emissions, and high integration. It is an optimal solution for designers aiming to create reliable, efficient, and cost-effective sub-network nodes in the demanding automotive environment.

Keywords: LIN Transceiver, Automotive Networking, ESD Protection, Electromagnetic Compatibility (EMC), AEC-Q100.