Infineon TLE9261BQXXUMA1: The Automotive Power Management System Basis Chip
In the rapidly evolving landscape of automotive electronics, the demand for robust, efficient, and integrated power management solutions is paramount. The Infineon TLE9261BQXXUMA1 stands out as a premier System Basis Chip (SBC) designed specifically to meet the stringent requirements of modern vehicle applications. This highly integrated circuit consolidates multiple critical functions into a single package, serving as a cornerstone for electronic control units (ECUs) in body, safety, and convenience systems.
At its core, the TLE9261BQXXUMA1 is engineered to provide a reliable power supply for microcontrollers and other loads within the automotive network. It features a high-efficiency step-down (buck) voltage regulator with low quiescent current, essential for supporting always-on functionalities while minimizing power consumption during key-off phases. This is crucial for extending battery life and meeting the low-power demands of today's vehicles. The device operates seamlessly over a wide input voltage range, typically from 5.5V to 42V, ensuring unwavering performance during load dump, cold crank, and other challenging electrical transients common in the automotive environment.
Beyond power conversion, this SBC excels in network connectivity. It integrates a high-speed CAN FD (Flexible Data-Rate) transceiver, which is vital for high-bandwidth, real-time communication between various ECUs. This transceiver is fully compliant with the latest ISO 11898-2:2016 standard, offering superior electromagnetic compatibility (EMC) and electrostatic discharge (ESD) protection to guarantee data integrity in noisy automotive settings.
System safety and monitoring are integral to its design. The chip includes a window watchdog and a voltage supervisor for the microcontroller, ensuring safe operation and enabling a controlled system reset in case of software hangs or voltage irregularities. Furthermore, it offers extensive diagnostic capabilities and multiple fail-safe outputs, contributing to higher Automotive Safety Integrity Level (ASIL) compliance as defined by the ISO 26262 standard.
The TLE9261BQXXUMA1 is housed in a space-saving VQFN-48 package, making it ideal for space-constrained applications. Its AEC-Q100 qualified status guarantees its reliability and performance under the harsh conditions of automotive operation, including extreme temperatures and humidity.
ICGOOODFIND: The Infineon TLE9261BQXXUMA1 is a highly integrated and robust System Basis Chip that streamlines automotive ECU design. By combining a powerful voltage regulator, a CAN FD interface, and comprehensive safety features into a single, reliable component, it significantly reduces system complexity, board space, and cost while enhancing overall performance and reliability for next-generation automotive power management.
Keywords: System Basis Chip, Automotive Power Management, CAN FD Transceiver, Voltage Regulator, AEC-Q100.
