Infineon TLE9221SXXUMA2: A Comprehensive Technical Overview

The Infineon TLE9221SXXUMA2 represents a highly integrated system basis chip (SBC) engineered for sophisticated automotive body control modules and other mechatronic applications. It combines multiple vital functions into a single package, simplifying system design, enhancing reliability, and reducing the overall bill of materials. As a key component in modern vehicle architectures, it is designed to meet the stringent requirements of the automotive industry, including AEC-Q100 qualification for operational robustness.

At its core, the TLE9221SXXUMA2 features a high-efficiency embedded voltage regulator supplying a microcontroller and other logic circuits. This regulator is capable of delivering substantial current, ensuring stable power even during demanding operational states. A critical aspect of its design is the ultra-low quiescent current in various low-power modes, which is paramount for supporting automotive sleep/wake-up functionality. This capability is essential for minimizing battery drain in modern vehicles, which are packed with constantly monitoring electronic control units (ECUs).

The device's communication capabilities are a significant highlight. It integrates a high-speed CAN FD (Flexible Data-Rate) transceiver, compliant with the latest ISO 11898-2:2016 standard. This allows the ECU to communicate efficiently on the high-speed vehicle network, supporting faster data rates and larger payloads than classical CAN, which is crucial for advanced features and over-the-air (OTA) updates. Furthermore, the chip includes a LIN system basis chip transceiver, providing a cost-effective local interconnect network solution for sub-nodes.

System safety and monitoring are deeply embedded within the TLE9221SXXUMA2's architecture. It incorporates a window watchdog timer and a failsafe output stage for the microcontroller's reset signal, enhancing system stability. The chip also provides extensive diagnostic and protection features, such as over-voltage and under-voltage monitoring on the supply lines, overtemperature shutdown, and comprehensive failure mode detection and management. These features are vital for achieving the high levels of functional safety required by applications targeting ASIL (Automotive Safety Integrity Level) standards.

The device is offered in a compact, surface-mount PG-VQFN-48 package, making it suitable for space-constrained applications. Its design prioritizes electromagnetic compatibility (EMC) and electrostatic discharge (ESD) protection, ensuring reliable performance in the electrically harsh environment of an automobile.

ICGOOODFIND: The Infineon TLE9221SXXUMA2 is a robust and highly integrated system basis chip that stands out for its combination of power management, CAN FD and LIN network interfaces, and advanced safety features. Its focus on low quiescent current and comprehensive diagnostics makes it an optimal choice for next-generation automotive body and convenience control applications, ensuring both performance and reliability.

Keywords: Automotive SBC, CAN FD Transceiver, Low Quiescent Current, AEC-Q100, ASIL Compliance