Infineon TLE7469GV53AUMA1: High-Performance Multi-Voltage Supply and System Basis Chip for Automotive Applications

The increasing complexity of modern automotive electronic systems demands highly integrated, robust, and efficient power management solutions. Addressing this need, the Infineon TLE7469GV53AUMA1 stands out as a premier System Basis Chip (SBC) designed to consolidate multiple critical functions into a single, compact package. This device is engineered to serve as the central power and communication hub for automotive applications, particularly within domain and zone controllers, advanced driver-assistance systems (ADAS), and gateway modules.

At its core, the TLE7469GV53 is a multi-voltage supply unit, renowned for its high efficiency and exceptional reliability. It integrates a primary voltage regulator capable of handling the demanding automotive battery voltage range, typically from 3.0V to 40V, with transient survival up to 45V. This ensures stable operation even during load dump events, a common challenge in the automotive electrical environment. The chip features multiple subsequent regulators, including two high-performance Buck converters and several Low-Dropout (LDO) linear regulators, to provide the precise voltage levels required by microcontrollers (MCUs), sensors, and communication interfaces.

Beyond power management, this SBC excels as a system orchestrator. A key feature is its integrated high-speed CAN FD (Flexible Data-Rate) transceiver, which facilitates robust and high-bandwidth communication between electronic control units (ECUs) over the vehicle network. This is complemented by an integrated LIN transceiver for local subnet communication, making it a versatile solution for various network topologies.

System safety and monitoring are paramount in automotive design. The TLE7469GV53 incorporates a comprehensive suite of protection features and diagnostic functions. These include over-voltage protection (OVP), under-voltage lockout (UVLO), over-temperature shutdown (OTSD), and short-circuit protection on all outputs. Its sophisticated window watchdog and reset generation circuitry ensures the safe operation of the connected microcontroller, enhancing the overall functional safety of the system, which is crucial for applications targeting ISO 26262 ASIL compliance.

Housed in a space-saving, thermally enhanced PG-VQFN-48 package, the device is optimized for the harsh under-the-hood environment, operating reliably over a wide ambient temperature range of -40°C to 150°C. Its high level of integration significantly reduces the external component count, simplifying board design, saving space, and lowering the total system cost.

ICGOODFIND: The Infineon TLE7469GV53AUMA1 is a superior, highly integrated System Basis Chip that delivers a complete and reliable power supply, network communication, and safety management solution for next-generation automotive electronics. Its robust design, multi-voltage output capability, and integrated CAN FD transceiver make it an ideal choice for architects designing complex, safety-critical, and connected vehicle systems.

Keywords: System Basis Chip (SBC), Multi-Voltage Supply, CAN FD Transceiver, Automotive Applications, ISO 26262 ASIL.