Infineon TLE9261BQXV33XUMA1: System Basis Chip for Automotive Power Management

The increasing complexity of automotive electronic control units (ECUs) demands highly integrated, robust, and reliable power management solutions. The Infineon TLE9261BQXV33XUMA1 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, reducing board space, and enhancing overall system reliability.

At its core, the TLE9261BQXV33XUMA1 is engineered to manage power for microcontrollers and peripherals in harsh automotive environments, such as body control modules, gateways, and sensor interfaces. Its primary voltage regulator provides a stable 3.3V or 5V supply for a main microcontroller, featuring very low dropout and high accuracy essential for the stable operation of advanced microprocessors.

A key strength of this SBC is its integrated high-speed CAN (Controller Area Network) transceiver, which supports data rates up to 2 Mbit/s (CAN FD). This facilitates robust and error-resistant communication between ECUs, which is the backbone of in-vehicle networking. The transceiver is designed to be extremely immune to electromagnetic interference (EMI) and boasts very low electromagnetic emission (EME), ensuring communication integrity without interfering with other sensitive electronics.

Beyond communication, the chip incorporates a suite of protective features that are critical for automotive safety and longevity. It includes multiple low-power modes, including a stand-by mode with very low quiescent current, which is vital for meeting the strict quiescent current requirements in always-on automotive applications. Furthermore, it offers comprehensive failure mode detection and protection mechanisms such as over-voltage, under-voltage, and over-temperature protection. These features safeguard both the SBC itself and the microcontroller it powers from potential damage due to electrical faults.

The device is housed in a space-saving PG-VQFN-48 package, making it suitable for space-constrained applications. Its design and production adhere to the rigorous AEC-Q100 qualification standard, guaranteeing its performance and reliability over the extended temperature ranges and harsh conditions typical of the automotive industry.

ICGOOFIND: The Infineon TLE9261BQXV33XUMA1 is a highly integrated System Basis Chip that consolidates power supply, communication, and protection functions. It is an optimal solution for automotive designers seeking to enhance system reliability, reduce component count, and accelerate development for a wide range of ECU applications.

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