কোম্পানির ব্লগ সম্পর্কে Supply Infineon Automotive Ethernet Product:Ethernet PHY,Ethernet Switches

Supply Infineon Automotive Ethernet Product:Ethernet PHY,Ethernet Switches

Shenzhen Mingjiada Electronics Co., Ltd., a globally renowned distributor of electronic components, specialises in providing a wide range of high-quality electronic components and assemblies. With years of industry experience, a stock of over 2 million SKUs and an international supply chain network, the company offers one-stop procurement services for switching products to customers across multiple industries.

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I. Core Positioning: The “Connection Cornerstone” of Automotive Ethernet

In-vehicle Ethernet is gradually replacing traditional CAN/LIN/FlexRay to become the backbone network of the new generation of in-vehicle electronic/electrical architecture (E/E architecture). The physical layer (PHY) chip is responsible for the conversion of electrical and digital signals, link driving, anti-interference measures and physical layer protocol processing, serving as the “last mile” of Ethernet data transmission; Ethernet switches, on the other hand, handle multi-port data forwarding, traffic scheduling, network management, time synchronisation and security isolation, serving as the “network hub” for building in-vehicle domain control and central computing platforms. All Infineon products are AEC-Q100 certified, support a wide temperature range of -40°C to 125°C, and meet ISO 26262 ASIL-B/D functional safety standards, making them suitable for the demanding conditions of the automotive environment.

II. Ethernet Physical Layer (PHY) Chips: Full-Speed, High-Reliability, Low-Power

Infineon’s automotive PHY chips are centred on the REAL3 series, covering 10M/100M/1G automotive Ethernet. They support single-pair twisted-pair (100BASE-T1/1000BASE-T1) and multi-point bus (10BASE-T1S) configurations, perfectly meeting the requirements for lightweight in-vehicle cabling, long-distance transmission and multi-node networking.

1. Core Product Series and Key Parameters

(1) 10BASE-T1S PHY: Designed for low-speed body/control domains

Product Model: TLE9255S

Core Specifications: 10Mbps, single-pair twisted pair, star topology (up to 30 nodes), supports 25m transmission distance, AEC-Q100 Grade 1, ISO 26262 ASIL-B

Key Advantages: Replaces CAN FD; supports broadcast/multicast; low power consumption (standby < 10μA); built-in collision detection and link diagnostics; suitable for low-speed nodes such as body control, seats, lighting and sensors; reduces wiring harness cost and weight

(2) 100BASE-T1 PHY: Mainstream high-speed in-vehicle communication (cockpit / domain control)

Product Models: TLE9251V, TLE9252V

Key Specifications: 100Mbps, single-pair twisted pair, full-duplex, transmission distance 15m, AEC-Q100 Grade 1, supports sleep/wake-up (wake-up frames / hardware wake-up)

Key Advantages: Low EMI/EMC (compliant with automotive EMC standards), built-in link status monitoring and signal integrity optimisation, compatible with 10BASE-T1S, suitable for smart cockpits, ADAS domains and body domain controllers

(3) 1000BASE-T1 PHY: Autonomous Driving / Central Computing Backbone

Product Model: REAL3 Giga (TLE9256G)

Key Specifications: 1 Gbps, single-pair twisted pair, full-duplex, transmission distance 15 m, AEC-Q100 Grade 1, ISO 26262 ASIL-D, supports IEEE 1588 Precision Time Protocol (PTP)

Key Advantages: Supports 2.5Gbps expansion, ultra-low latency (<1μs), high immunity to interference; suitable for autonomous driving domain controllers, central computing platforms, and high-bandwidth sensors such as in-vehicle cameras, LiDAR and millimetre-wave radar

2. Key Technical Highlights of the PHY Chip

Single-pair twisted-pair transmission: Compared to traditional 4-pair twisted-pair Ethernet, this reduces wiring harness length by 50%, lowering weight, cost and installation complexity, and is suitable for compact in-vehicle spaces

Automotive-grade reliability: Wide temperature range, vibration resistance, electromagnetic interference (EMI) resistance; supports link diagnostics and fault alerts; meets the automotive industry’s requirement for a service life of over 15 years

Low-power design: Multi-level sleep modes (deep sleep / light sleep), with support for remote wake-up, reducing the vehicle’s static power consumption

Functional safety: Built-in safety monitoring and redundancy checks, supporting ASIL-B/D, suitable for safety-critical scenarios such as autonomous driving

Compatibility: Backward compatible with 100BASE-T1/10BASE-T1S, supporting interoperability with in-vehicle Ethernet devices from other manufacturers

III. In-Vehicle Ethernet Switches: Intelligent Forwarding, Secure Isolation, Time Synchronisation

Infineon’s in-vehicle Ethernet switches are centred on the ENET Switch series, covering 4 to 16 ports and supporting 10M/100M/1G mixed speeds. They integrate vehicle-specific functions (time synchronisation, traffic shaping, network security, diagnostics) and are suitable for core nodes such as domain controllers, central gateways and autonomous driving platforms.

1. Core Product Series and Key Specifications

(1) Entry-level: 4–8 ports, designed for body/cabin domains

Product models: TLE92604, TLE92608

Core Specifications: 4/8 ports, 10/100BASE-T1, supports IEEE 802.1Q VLAN, traffic prioritisation (QoS), port mirroring, link aggregation

Core Advantages: Compact size, low power consumption, integrated MAC/PHY, simplified BOM, compatible with body domain controllers and cockpit domain gateways

(2) Mainstream: 8–12 ports, designed for ADAS/domain control convergence

Product Model: TLE92612

Key Specifications: 12 ports, 10/100/1000BASE-T1 mixed, supports IEEE 1588 PTP (sub-microsecond time synchronisation), IEEE 802.1AS automotive Time-Sensitive Networking (TSN), traffic filtering

Key Advantages: Supports TSN protocols (time-sensitive transmission, low latency, high determinism), suitable for ADAS domains and autonomous driving assistance systems, meeting the requirements for real-time sensor data transmission

(3) Flagship: 16 ports, designed for central computing / autonomous driving backbone

Product Model: TLE92616

Key Specifications: 16 ports, all 1GBASE-T1, supports full TSN protocol stack (802.1Qbv/802.1Qbu/802.1CB), ISO 26262 ASIL-D, hardware firewall, MACsec encryption

Key Advantages: Ultra-high bandwidth, ultra-low latency, high-security isolation; supports multi-domain convergence and central computing platforms; suitable for Level 3/4 autonomous driving; meets the requirements for concurrent transmission of massive data from cameras, radars and lidars

2. Key Technical Highlights of the Switch

In-vehicle TSN Support: Enables deterministic, low-latency transmission of time-sensitive data (e.g., autonomous driving control commands, sensor data), whilst ensuring non-critical data (e.g., infotainment) does not pre-empt bandwidth, thereby safeguarding driving safety

Functional Safety and Network Security: ASIL-D certified, with built-in hardware firewall, MACsec data encryption, port isolation and intrusion detection to prevent cyber-attacks and data tampering, ensuring in-vehicle network security

Precise Time Synchronisation: IEEE 1588 PTP with sub-microsecond synchronisation accuracy, suitable for multi-sensor fusion and autonomous driving coordination

Intelligent Traffic Management: VLAN segmentation, QoS prioritisation, traffic shaping and broadcast storm suppression to optimise network load and prevent congestion

Integrated Design: Some models feature integrated PHYs, reducing the number of peripheral components and lowering PCB footprint and costs, making them suitable for compact in-vehicle layouts

IV. Typical Application Scenarios

Smart Cockpit: Connects the central control unit, instrument cluster, HUD and rear-seat entertainment systems to enable high-speed transmission of HD video, audio and navigation data

Autonomous Driving Domain: Connects cameras, LiDAR, millimetre-wave radar and domain controllers to ensure real-time, deterministic transmission of sensor data, supporting Levels 2–4 autonomous driving

Body Control Domain: Replaces CAN FD to connect doors, seats, lighting and air conditioning, enabling efficient multi-node communication and reducing wiring harness costs

Central Gateway / Central Computing Platform: Acts as the hub of the vehicle network, connecting domain controllers to enable data interoperability, security isolation and unified management