Infineon TLE9252VSK: A High-Speed CAN Transceiver for Automotive Networking

The evolution of modern vehicles into complex, software-defined systems has placed unprecedented demands on in-vehicle networking. At the heart of this communication lies the Controller Area Network (CAN), a robust and widely adopted protocol. The Infineon TLE9252VSK stands out as a state-of-the-art high-speed CAN transceiver, engineered to meet the stringent requirements of next-generation automotive applications.

This integrated circuit serves as the critical interface between a microcontroller's protocol controller and the physical CAN bus. It is designed for high-speed data transmission up to 8 Mbit/s, far exceeding the classic 1 Mbit/s limit of traditional High-Speed CAN (CAN FD). This capability is essential for supporting the immense data volumes generated by advanced driver-assistance systems (ADAS), electrification control units, and high-performance gateways.

A paramount concern in automotive design is functional safety. The TLE9252VSK is developed in accordance with ISO 11898-2:2016 and ISO 11898-5:2007 standards, ensuring robust performance and electromagnetic compatibility (EMC). It incorporates a comprehensive suite of diagnostic features, including built-in protection against bus faults such as short-circuits to battery or ground, overtemperature, and loss of power supply. This proactive fault detection is vital for achieving ASIL (Automotive Safety Integrity Level) targets under the ISO 26262 standard.

Furthermore, the device features very low power consumption, offering a dedicated low-power mode with remote wake-up capability via the CAN bus. This is a crucial function for electric and hybrid vehicles, where minimizing quiescent current is directly linked to extending battery life. Its compact VSON-8 package ensures a minimal footprint on the PCB, which is ideal for space-constrained electronic control units (ECUs).

In application, the TLE9252VSK provides excellent electromagnetic emission (EME) and immunity (EMI) performance, contributing to a cleaner and more reliable electronic environment within the vehicle. Its robustness against electrostatic discharge (ESD) ensures long-term reliability, even in harsh automotive conditions.

ICGOO

The Infineon TLE9252VSK is a cornerstone for building reliable and high-performance automotive networks. Its blend of high-speed data handling, extensive diagnostic and protection features, and low-power operation makes it an indispensable component for engineers designing ECUs for the future of mobility, from ADAS and electrification to central body controllers and gateways.

Keywords:

CAN Transceiver, Automotive Networking, Functional Safety, CAN FD, Low-Power Mode