Onsemi AMIS30663CANG2G: A High-Performance CAN Bus System Basis Chip for Automotive Networking

The evolution of modern vehicles into complex, software-defined systems has placed unprecedented demands on in-vehicle networking. At the heart of this communication infrastructure lies the Controller Area Network (CAN bus), a robust protocol designed for harsh environments. The Onsemi AMIS30663CANG2G is a System Basis Chip (SBC) that integrates the critical functionalities required to interface a microcontroller with a CAN network, offering a compact, reliable, and high-performance solution for next-generation automotive applications.

This device is engineered to serve as a complete local network node. Its primary role is to manage the physical layer communication, providing the essential link between the protocol-handling microcontroller and the actual CAN bus lines. The AMIS30663CANG2G combines a CAN transceiver, compliant with the ISO 11898-2 and ISO 11898-5 standards, with a high-efficiency voltage regulator.

This integrated voltage regulator provides a stable 5 V or 3.3 V supply for an associated microcontroller and other components, significantly simplifying power architecture design and reducing the total component count on the board.

A key strength of this SBC is its exceptional robustness and diagnostic capabilities. It is designed to withstand the rigorous electrical challenges of the automotive environment, offering excellent Electrostatic Discharge (ESD) protection and immunity to electromagnetic interference (EMI). Features such as thermal shutdown, protection against loss of battery and ground, and overturnent limitation on the voltage regulator output ensure maximum system integrity. Furthermore, the chip provides comprehensive diagnostic feedback, including bus status and error flags, which is crucial for functional safety and system monitoring.

The device supports multiple operating modes, including low-power management modes such as Standby and Sleep. This is vital for modern vehicles, where energy efficiency is paramount, especially in applications with always-on ECUs or in electric vehicles where minimizing quiescent current directly extends battery life. The ability to be woken up via a remote CAN message allows the system to remain energy-efficient while responsive to network demands.

Target applications are widespread across the automotive domain, including body control modules, gateways, lighting systems, door and seat control units, and any other electronic control unit (ECU) requiring a CAN connection. Its AEC-Q100 qualification guarantees its performance and reliability for these demanding automotive use cases.

ICGOODFIND: The Onsemi AMIS30663CANG2G stands out as a highly integrated and robust System Basis Chip that streamlines the design of CAN nodes. By combining a high-performance transceiver, a power supply, and extensive protection features into a single package, it offers designers a solution that enhances reliability, reduces system cost and size, and accelerates time-to-market for a wide array of automotive networking applications.

Keywords: CAN Bus Transceiver, System Basis Chip (SBC), Automotive Networking, Voltage Regulator, Low-Power Management.