Infineon TLE9562QX: A High-Performance System Basis Chip for Automotive Motor Control Applications

The rapid evolution of automotive electrification demands highly integrated, robust, and efficient semiconductor solutions. At the heart of many advanced motor control systems, from electric power steering (EPS) and braking to thermal management and engine cooling, lies the System Basis Chip (SBC). The Infineon TLE9562QX stands out as a premier device engineered to meet these stringent requirements, offering a compelling blend of functionality, safety, and performance.

This SBC is designed to serve as the central nervous system for electronic control units (ECUs), consolidating multiple critical functions into a single package. It features a highly efficient switched-mode power supply (SMPS) that generates the necessary stable voltages for the microcontroller and peripherals, significantly reducing power dissipation compared to traditional linear regulators. Furthermore, it integrates a rich set of high-speed communication interfaces, including multiple CAN FD (Flexible Data-Rate) transceivers. This enables seamless and rapid data exchange within the vehicle network, which is crucial for real-time motor control and system diagnostics.

A paramount concern in automotive design is functional safety. The TLE9562QX is developed in accordance with the ISO 26262 standard, supporting system designs up to ASIL D – the highest Automotive Safety Integrity Level. It incorporates a comprehensive suite of monitoring and diagnostic functions, such as voltage supervision, watchdog timers, and error signaling. These features ensure that any internal fault or external anomaly is detected and managed appropriately, allowing the system to enter a safe state and preventing potential hazards.

For motor control applications specifically, the chip provides dedicated resources to drive and monitor external power stages, typically MOSFETs or IGBTs. It includes a window watchdog for the microcontroller and a fail-safe output that can disable the power stage independently if a critical fault is detected. This autonomous capability is vital for preventing overcurrent, overtemperature, or short-circuit conditions from damaging the motor or the electronics.

Harsh automotive environments pose significant challenges, including wide voltage fluctuations, electromagnetic interference (EMI), and extreme temperatures. The TLE9562QX is built to withstand these conditions, offering robust protection against transients and reverse polarity. Its AEC-Q100 qualification ensures reliability and longevity, making it an ideal choice for safety-critical and space-constrained applications under the hood.

ICGOODFIND: The Infineon TLE9562QX is a highly integrated and safety-focused System Basis Chip that excels in automotive motor control systems. By combining power management, communication interfaces, and extensive diagnostic features in a single device, it simplifies system architecture, enhances reliability, and accelerates development for next-generation vehicle applications.

Keywords: System Basis Chip (SBC), Automotive Motor Control, ISO 26262 ASIL D, CAN FD Transceiver, Functional Safety