Infineon TLE7368-2E: A High-Performance System Basis Chip for Automotive Power Management

In the rapidly evolving landscape of automotive electronics, the demand for robust, efficient, and highly integrated power management solutions is greater than ever. Addressing this need, Infineon Technologies has developed the TLE7368-2E, a state-of-the-art System Basis Chip (SBC) designed to serve as the cornerstone for modern vehicle electronic control units (ECUs). This device exemplifies the integration of multiple critical functions into a single package, enhancing reliability while reducing system complexity and board space.

At its core, the TLE7368-2E is engineered to power and manage microcontrollers and sensors in safety-relevant and powertrain applications. It features multiple regulated voltage supplies, including a primary 5 V/400 mA low-dropout (LDO) regulator for the microcontroller core and a secondary 5 V/150 mA LDO for sensor supply. Both are characterized by their high accuracy and excellent transient response, ensuring stable operation even under the demanding conditions of an automotive environment.

A key strength of this SBC lies in its comprehensive communication interfaces. It integrates two high-speed CAN FD (Flexible Data-Rate) transceivers, compliant with the latest ISO 11898-2:2016 standard. These interfaces are equipped with advanced power management and wake-up capabilities via CAN bus or local wake pins, which are essential for supporting modern energy-saving modes like cyclic sleep and stop-start functionality. This makes the chip ideal for building networked ECUs that require minimal quiescent current.

Furthermore, the TLE7368-2E boasts advanced safety and diagnostic features that are paramount for ASIL (Automotive Safety Integrity Level) compliant system designs. It includes a programmable window watchdog, a fail-safe output, and extensive monitoring functions for undervoltage, overvoltage, and overtemperature conditions. This built-in self-protection and system monitoring significantly enhance the overall functional safety of the application, aiding developers in meeting stringent standards like ISO 26262.

The device is also designed for resilience. Its high immunity to electromagnetic interference (EMI) and very low electromagnetic emission (EME) ensure reliable operation without interfering with other sensitive electronics in the vehicle. Operating from a supply voltage range of 5.5 V to 28 V, and tolerating transients up to 40 V, the TLE7368-2E is built to withstand the harsh electrical environment of an automobile, including load dump pulses.

In summary, the Infineon TLE7368-2E is more than just a power management IC; it is a complete system foundation. By consolidating power supplies, communication transceivers, and safety monitoring into one compact package, it simplifies design, accelerates time-to-market, and provides a reliable, high-performance solution for next-generation automotive ECUs.

ICGOODFIND: The Infineon TLE7368-2E stands out as a premier System Basis Chip that masterfully combines high-performance power regulation, robust CAN FD communication, and comprehensive safety features, making it an indispensable component for designing advanced and reliable automotive electronic systems.

Keywords: Automotive Power Management, System Basis Chip (SBC), CAN FD Transceiver, Functional Safety (ASIL), Voltage Regulator.