Infineon TLE9262BQXXUMA1: System Basis Chip for Automotive Power Management Applications

The increasing complexity of automotive electronic control units (ECUs) demands highly integrated and robust power management solutions. The Infineon TLE9262BQXXUMA1 stands out as a premier System Basis Chip (SBC) designed specifically to meet the stringent requirements of modern vehicle architectures. This device combines multiple critical functions into a single package, simplifying design, enhancing reliability, and reducing the overall system footprint.

At its core, the TLE9262BQXXUMA1 is engineered for body and gateway applications. It features a primary voltage regulator with a 5 V/300 mA output for powering a microcontroller (MCU) and a separate 5 V/150 mA pre-regulator output for additional peripherals. A key strength of this SBC is its integrated high-speed CAN FD (Flexible Data-Rate) transceiver, which supports data rates up to 5 Mbit/s, enabling efficient and high-bandwidth communication within the vehicle network. This is complemented by a LIN (Local Interconnect Network) transceiver system basis chip, making it a versatile communication hub.

Beyond communication, the chip excels in power management and system monitoring. It includes two high-side drivers, capable of controlling loads like LEDs or relays directly. For robust system operation, it offers comprehensive fail-safe and protection features, including undervoltage detection (UVD) on the supply lines, overtemperature shutdown, and a sophisticated window watchdog for the MCU. Its very low quiescent current in standby mode is critical for applications requiring always-on functionality without draining the vehicle's battery.

The TLE9262BQXXUMA1 is built to withstand the harsh automotive environment, operating over a wide temperature range from -40°C to 150°C and qualified according to AEC-Q100. Its design prioritizes electrostatic discharge (ESD) protection and electromagnetic compatibility (EMC), ensuring resilience against electrical disturbances common in automotive systems.

ICGOODFIND: The Infineon TLE9262BQXXUMA1 is an all-in-one power and communication solution that significantly boosts the reliability and efficiency of automotive ECUs. Its high level of integration, robust protection mechanisms, and low power consumption make it an ideal choice for designers tackling the challenges of next-generation automotive electronics.

Keywords: System Basis Chip (SBC), Automotive Power Management, CAN FD Transceiver, Low Quiescent Current, AEC-Q100.