Zone Control Unit (ZCU)

Transform your automotive E/E architecture with scalable zonal controller platforms — aggregating power distribution, gateway, and load actuation.

nobutton

Overview

Accelerate your next-generation vehicle design with Infineon’s zone control unit (ZCU) solutions. A ZCU implements vehicle functions within a defined physical zone — aggregating communication protocols, controlling local loads, and managing power distribution. Zonal controllers reduce automotive E/E complexity while enabling scalable, efficient vehicle architectures built for Software-Defined Vehicles.

Benefits

  • Reduced HW complexity
  • SW aggregation & OTA updatability
  • High flexibility & configurability
  • Reduced weight and cost
  • Scalability across platforms
  • Enhanced system performance
  • Advanced cybersecurity support
  • Functional safety up to ASIL-D
  • 48 V-ready architecture
  • AEC-Q100/101 qualified portfolio

Block diagram

About

The evolution of E/E systems: Shift towards zonal architectures

The automotive industry is undergoing a fundamental transformation — shifting from domain-based E/E architectures to vehicle zonal architectures with central computing and increasingly standardized end points. This evolution is driven by an increasing demand for efficient, scalable designs, wire harness optimization and the rise of Software-Defined Vehicles (SDV).

In a zonal architecture, zone control units (ZCUs) aggregate multiple legacy ECU functions — including the automotive gateway functionality, power distribution, and local load actuation previously handled by body control modules. In doing so, zonal controllers become a highly-integrated, function-rich ECU the various local end points of the vehicle with the central car computer.

Increasing power demands — from ADAS, electrical power steering, brake-by-wire and various other new applications — are pushing 12 V architectures to their limits. A 48 V-based zonal architecture emerges as the most efficient and compliant approach, still within contact protection requirements (ISO 6469-3) while enabling substantial system-wide cost and weight savings. 

Software-Defined Vehicle (SDV) solutions
Ethernet solutions
Infineon’s zone controller solutions — A platform-ready portfolio

Zone control unit designs require scalable, flexible semiconductor chipset solutions. Requirements vary with the degree of functional aggregation, the diversity of gateway communication interfaces, performance demands, and the number of load control output variants.

Infineon offers a platform-ready portfolio covering every zonal controller function: integrated and discrete power supply solutions (OPTIREG™), high-performance NOR Flash (SEMPER™), and microcontrollers spanning from the high-end AURIX™ for compute-intensive ZCU functions to the cost-optimized TRAVEO™ for body control and load management. For load actuation — including functions formerly handled by body control modules — Infineon’s PROFET™+2, SPOC™+2, Power PROFET™, and SPIDER+ smart power switches deliver best-in-class current scalability. The MOTIX™ motor control portfolio handles all power actuation needs, while BRIGHTLANE™ Ethernet PHYs and switches provide data rate scalability up to multi-Gbit. 

AURIX™ microcontrollers
PROFET™ smart power switches
Easily adoptable ISO-26262 & ISO-21434 solutions

Infineon’s AURIX™ microcontrollers are best-in-class for ASIL-D functional safety designs and are complemented by the TRAVEO™ family for low-power-optimized ASIL-B implementations. Corresponding OPTIREG™ power supply solutions come with easily-implementable safety manuals — enabling a safe design and quick realization of functional safety goals. The MOTIX™ motor control solutions and PROFET™ smart power switches are ISO-ready and partly ISO-compliant and offer extensive safety documentation, enabling the easiest functional safety design in the market. Lastly, Infineon's BRIGHTLANE™ ethernet portfolio enables redundant ASIL-D In-Vehicle Network implementations and together with the AURIX™ portfolio enables end-to-end cyber security.

For zone control unit designs integrating body control and automotive gateway functions, Infineon’s comprehensive safety and security portfolio ensures ASIL requirements are met across all subsystems — with pre-qualified components from power supply and load actuation to high-speed communication and processing. This qualification-ready approach shortens development cycles and simplifies compliance for the most demanding automotive safety standards. 

AURIX™ microcontrollers for functional safety
OPTIREG™ power supply solutions
Meeting connectivity needs with our advanced MCU & Ethernet portfolio

As control functions consolidate in fewer zone control units while sensor data and network demands grow, ZCU connectivity requirements are increasing immensely. Each zone controller must deliver higher compute performance and support significantly more interfaces — including multi-Gbit connections for the In-Vehicle ethernet backbone.

Infineon’s microcontrollers and communication solutions set new standards in time-sensitive, data rates, secure data processing, and multi-protocol connectivity. AURIX™ MCUs provide the processing power and embedded hardware accelerators needed for secure automotive gateway functions within the zone controller. TRAVEO™ T2G devices deliver fast in-car communication with advanced security features including dedicated hardware security modules. BRIGHTLANE™ Ethernet PHYs and switches ensure seamless connectivity across the zonal architecture — beyond 10 Gbit.
 

BRIGHTLANE™ Ethernet solutions
AURIX™ MCUs
Efficient automotive power distribution at 12 V and 48 V

The shift to 48 V architectures enables higher efficiency, reduced losses, and optimized wiring complexity, while zone controllers must handle increasingly demanding secondary power distribution in mixed 12 V / 48 V networks. Reliable, fail-operational power delivery is essential to meet ASIL D requirements across SDV, ADAS, and autonomous systems.

Infineon provides a comprehensive portfolio for intelligent power distribution and conversion, combining PROFET™ and SPOC™ smart switches with OptiMOS™ 7 MOSFETs and EiceDRIVER™ gate drivers. In addition, high-performance 48 V/12 V DC/DC solutions ensure seamless energy transfer between domains.

Together with system expertise, these solutions enable scalable, efficient, and future-proof power architectures—reducing system cost, simplifying harness design, and supporting next-generation vehicle platforms. 

How to get started with your zone controller design

Designing a zone control unit involves balancing complex tradeoffs: functional aggregation, diversity of automotive gateway communication interfaces and protocols, performance requirements, and power distribution, as well as load control output variants. Designs must be scalable, flexible, and reliable — adaptable to different vehicle platforms and trim levels.

Infineon supports customers throughout the entire zone controller development process. Our core strengths include operational excellence, a zero-defect mentality, global application support, and system competence teams with deep zonal architecture expertise. Our portfolio meets the latest qualification standards (AEC-Q100/101) with comprehensive safety documentation for ASIL-rated designs. Get started with Infineon’s zone control unit design resources: Reference desings, Proof-of-concept kits, whitepapers, application notes, and datasheets — or contact your Infineon representative to engage our experts directly. 

The evolution of E/E systems: Shift towards zonal architectures

The automotive industry is undergoing a fundamental transformation — shifting from domain-based E/E architectures to vehicle zonal architectures with central computing and increasingly standardized end points. This evolution is driven by an increasing demand for efficient, scalable designs, wire harness optimization and the rise of Software-Defined Vehicles (SDV).

In a zonal architecture, zone control units (ZCUs) aggregate multiple legacy ECU functions — including the automotive gateway functionality, power distribution, and local load actuation previously handled by body control modules. In doing so, zonal controllers become a highly-integrated, function-rich ECU the various local end points of the vehicle with the central car computer.

Increasing power demands — from ADAS, electrical power steering, brake-by-wire and various other new applications — are pushing 12 V architectures to their limits. A 48 V-based zonal architecture emerges as the most efficient and compliant approach, still within contact protection requirements (ISO 6469-3) while enabling substantial system-wide cost and weight savings. 

Software-Defined Vehicle (SDV) solutions
Ethernet solutions
Infineon’s zone controller solutions — A platform-ready portfolio

Zone control unit designs require scalable, flexible semiconductor chipset solutions. Requirements vary with the degree of functional aggregation, the diversity of gateway communication interfaces, performance demands, and the number of load control output variants.

Infineon offers a platform-ready portfolio covering every zonal controller function: integrated and discrete power supply solutions (OPTIREG™), high-performance NOR Flash (SEMPER™), and microcontrollers spanning from the high-end AURIX™ for compute-intensive ZCU functions to the cost-optimized TRAVEO™ for body control and load management. For load actuation — including functions formerly handled by body control modules — Infineon’s PROFET™+2, SPOC™+2, Power PROFET™, and SPIDER+ smart power switches deliver best-in-class current scalability. The MOTIX™ motor control portfolio handles all power actuation needs, while BRIGHTLANE™ Ethernet PHYs and switches provide data rate scalability up to multi-Gbit. 

AURIX™ microcontrollers
PROFET™ smart power switches
Easily adoptable ISO-26262 & ISO-21434 solutions

Infineon’s AURIX™ microcontrollers are best-in-class for ASIL-D functional safety designs and are complemented by the TRAVEO™ family for low-power-optimized ASIL-B implementations. Corresponding OPTIREG™ power supply solutions come with easily-implementable safety manuals — enabling a safe design and quick realization of functional safety goals. The MOTIX™ motor control solutions and PROFET™ smart power switches are ISO-ready and partly ISO-compliant and offer extensive safety documentation, enabling the easiest functional safety design in the market. Lastly, Infineon's BRIGHTLANE™ ethernet portfolio enables redundant ASIL-D In-Vehicle Network implementations and together with the AURIX™ portfolio enables end-to-end cyber security.

For zone control unit designs integrating body control and automotive gateway functions, Infineon’s comprehensive safety and security portfolio ensures ASIL requirements are met across all subsystems — with pre-qualified components from power supply and load actuation to high-speed communication and processing. This qualification-ready approach shortens development cycles and simplifies compliance for the most demanding automotive safety standards. 

AURIX™ microcontrollers for functional safety
OPTIREG™ power supply solutions
Meeting connectivity needs with our advanced MCU & Ethernet portfolio

As control functions consolidate in fewer zone control units while sensor data and network demands grow, ZCU connectivity requirements are increasing immensely. Each zone controller must deliver higher compute performance and support significantly more interfaces — including multi-Gbit connections for the In-Vehicle ethernet backbone.

Infineon’s microcontrollers and communication solutions set new standards in time-sensitive, data rates, secure data processing, and multi-protocol connectivity. AURIX™ MCUs provide the processing power and embedded hardware accelerators needed for secure automotive gateway functions within the zone controller. TRAVEO™ T2G devices deliver fast in-car communication with advanced security features including dedicated hardware security modules. BRIGHTLANE™ Ethernet PHYs and switches ensure seamless connectivity across the zonal architecture — beyond 10 Gbit.
 

BRIGHTLANE™ Ethernet solutions
AURIX™ MCUs
Efficient automotive power distribution at 12 V and 48 V

The shift to 48 V architectures enables higher efficiency, reduced losses, and optimized wiring complexity, while zone controllers must handle increasingly demanding secondary power distribution in mixed 12 V / 48 V networks. Reliable, fail-operational power delivery is essential to meet ASIL D requirements across SDV, ADAS, and autonomous systems.

Infineon provides a comprehensive portfolio for intelligent power distribution and conversion, combining PROFET™ and SPOC™ smart switches with OptiMOS™ 7 MOSFETs and EiceDRIVER™ gate drivers. In addition, high-performance 48 V/12 V DC/DC solutions ensure seamless energy transfer between domains.

Together with system expertise, these solutions enable scalable, efficient, and future-proof power architectures—reducing system cost, simplifying harness design, and supporting next-generation vehicle platforms. 

How to get started with your zone controller design

Designing a zone control unit involves balancing complex tradeoffs: functional aggregation, diversity of automotive gateway communication interfaces and protocols, performance requirements, and power distribution, as well as load control output variants. Designs must be scalable, flexible, and reliable — adaptable to different vehicle platforms and trim levels.

Infineon supports customers throughout the entire zone controller development process. Our core strengths include operational excellence, a zero-defect mentality, global application support, and system competence teams with deep zonal architecture expertise. Our portfolio meets the latest qualification standards (AEC-Q100/101) with comprehensive safety documentation for ASIL-rated designs. Get started with Infineon’s zone control unit design resources: Reference desings, Proof-of-concept kits, whitepapers, application notes, and datasheets — or contact your Infineon representative to engage our experts directly. 

Documents

Design resources

Partner solutions

Developer community

{ "ctalist":[ { "link" : "https://community.infineon.com/t5/forums/postpage/choose-node/true", "label" : "Ask the community", "labelEn" : "Ask the community" }, { "link" : "https://community.infineon.com/t5/Forums/ct-p/products", "label" : "View all discussions", "labelEn" : "View all discussions" } ] }