Guide Overview

Zonal Architecture is reshaping the future of vehicle electronics by decentralizing power distribution and data communication through localized Zonal Control Units (ZCUs). Unlike traditional domain architectures, zonal systems streamline vehicle wiring, reduce weight, and support the transition to Software Defined Vehicles (SDVs). Key enablers include protected semiconductor switches like SmartFETs and eFuses, along with 10BASE-T1S Ethernet transceivers that support high-speed, real-time networking between ZCUs and central processors—critical for advanced driver-assistance systems (ADAS) and autonomous features.

This System Solution Guide gives you a complete overview of designing zonal architectures. You’ll learn about the evolution from centralized to decentralized power distribution, the role of the Power Distribution Unit (PDU), and how new Ethernet standards enable flexible, scalable in-vehicle networking.

The guide also dives into onsemi’s latest technologies, including T10 MOSFETs, the Treo analog/mixed-signal platform, and multi-channel eFuses. It features block diagrams for PDUs and ZCUs, and detailed protection strategies using SmartFETs and ideal diodes. Download this solution guide to access evaluation boards, design tools, and the components you need to build your next-generation zonal vehicle platform.