Infineon TLE6258-2G High-Speed CAN Transceiver for Automotive Applications

The evolution of modern vehicles into complex, software-defined systems has made robust and reliable communication networks an absolute necessity. At the heart of these in-vehicle networks (IVNs) lies the Controller Area Network (CAN) bus, a stalwart protocol for real-time data exchange between electronic control units (ECUs). The Infineon TLE6258-2G is a state-of-the-art high-speed CAN transceiver designed specifically to meet the stringent demands of the automotive industry, providing the critical physical layer interface between a CAN protocol controller and the differential CAN bus.

A primary design goal for the TLE6258-2G is exceptional electromagnetic compatibility (EMC) and low electromagnetic emission (EME). In the electrically noisy environment of an automobile, where countless electronic modules operate in close proximity, minimizing interference is paramount. This transceiver employs advanced silicon-on-insulator (SOI) technology and features optimized slew-rate control, which drastically reduces ringing on the bus lines. This results in lower radiated emissions, ensuring compliance with strict automotive OEM standards and preventing disruptive crosstalk with other sensitive vehicle systems.

Complementing its low emissions is its high electromagnetic immunity (EMI). The device is engineered to withstand severe transient disturbances that are commonplace in automotive applications, such as load-dump pulses and jump-start events. Its superior common-mode rejection ratio (CMRR) allows it to maintain stable communication even in the presence of significant ground shifts or noise injected into the bus, guaranteeing data integrity and system reliability.

Beyond robust communication, the TLE6258-2G integrates comprehensive protection and diagnostic features that are crucial for functional safety and system health. These include:

Undervoltage detection on both the VCC and VIO supply pins.

Thermal shutdown protection to prevent damage from overheating.

A dominant timeout function to prevent the bus from being locked by a faulty CAN controller stuck in a dominant state.

High DC withstand voltage on the bus pins, offering protection against short circuits to battery voltage or ground.

These features make the transceiver an ideal solution for safety-critical applications such as advanced driver-assistance systems (ADAS), powertrain management, braking systems, and airbag control units. Its performance aligns with the requirements of ISO 11898-2 and is qualified for AEC-Q100 Grade 1, ensuring operation across the automotive temperature range (-40°C to +125°C). Furthermore, its low-power management support is essential for today's vehicles, enabling efficient energy use in always-on ECUs.

ICGOODFIND: The Infineon TLE6258-2G stands out as a premier high-speed CAN transceiver by masterfully balancing performance with resilience. Its exceptional EMC characteristics, high noise immunity, and integrated suite of protective diagnostics make it a cornerstone for building reliable, safe, and compliant automotive networking systems, ready to support the next generation of vehicle electronics.

Keywords: Automotive CAN Transceiver, Electromagnetic Compatibility (EMC), Functional Safety, High Noise Immunity, AEC-Q100.