汽车前沿技术 | 英飞凌推出面向软件定义汽车的车用电子保险丝

据报道，英飞凌科技股份公司（Infineon Technologies AG）推出SPOC? Wire Guard BTS80009 SWPx 1ES，进一步丰富了其汽车配电产品组合。这是一款高度集成的12 V汽车级电子保险丝（eFuse），配备SPI接口。作为全新智能功率开关系列的首款产品，它将带集成I2t线束保护功能的高侧开关、软件可配置性以及先进的诊断功能集于一身，专为支持“软件定义汽车”（SDV）理念及OTA（空中下载）更新的新型电子电气（E/E）架构而设计。SPOC Wire Guard BTS80009 SWPx 1ES汽车级电子保险丝能够实现微秒（μs）级的超快速故障隔离及精确的电流检测，从而避免了因使用传统熔断式保险丝而不得不采用过大线径导线的问题。同时，它确保了电源的高可用性及抗干扰能力。针对需持续供电的负载，该产品设有一种专用空闲模式，在保持全面保护功能的同时，功耗极低（仅为数微安）。为应对微控制器I/O端口数量有限的挑战，其24位SPI接口支持菊花链连接。为了支持跨车型变体的平台复用，用户可通过软件针对不同变体灵活调整配置及保护参数。此外，SPOC Wire Guard器件还能提供实时状态、预警指示及其他诊断信息，从而提升车辆可用性，并实现全生命周期的性能优化。SPOC Wire Guard能够满足对支持高级驾驶辅助系统（ADAS）功能日益增长的需求，并为L2++至L5级自动驾驶系统提供“故障可操作”（fail-operational）能力。该产品作为“脱离环境的安全要素”（SEooC）提供，符合ISO 26262标准，适用于最高达ASIL-D等级的系统；它集成了非易失性存储器（NVM），可用于配置特定应用的安全状态。它能够针对负载故障引起的电源电压下降做出自主响应，从而保护供电系统。其单通道架构有助于防止故障传播至其他输出端。该系列的首款产品SPOC Wire Guard BTS80009 SWPx 1ES包含四种不同版本（A、I、P和F），功能配置灵活可扩展，支持高达34.5 A的电流。这使其成为替代“栅极驱动IC + MOSFET +分流电阻”方案的理想选择，并能显著节省PCB空间。供货情况BTS80009 SWPx 1ES现已投入生产，另有三款具有不同导通电阻（RDS(on)）规格的型号计划于2026年底前推出。Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) has expanded its automotive power distribution portfolio with the SPOC? Wire Guard BTS80009 SWPx 1ES, a highly integrated 12 V automotive eFuse with SPI interface. As the first member of a new smart power switch family, it combines a protected high-side switch with integrated I2t wire protection, software configurability, and advanced diagnosis. It is designed for new E/E architectures that support software-defined vehicle (SDV) concepts with over-the-air updates.The SPOC Wire Guard BTS80009 SWPx 1ES automotive eFuse provides ultrafast failure isolation in μs as well as precise current sensing, avoiding overdimensioning of the wire diameter compared with traditional melting fuses. At the same time, it ensures high availability of the power supply with freedom of interference. For permanently powered loads, the product features a dedicated idle mode with very low power consumption of only a few μA while maintaining full protection. To mitigate a limited amount of microcontroller I/O ports, its 24-bit SPI interface is daisy-chain-capable. To support platform reuse across vehicle variants, configuration, and protection parameters can be adjusted in software for each variant. In addition, SPOC Wire Guard devices provide real-time status, pre-warning indicators, and other diagnostics to improve vehicle availability and enable optimization throughout the vehicle’s lifecycle.SPOC Wire Guard also addresses growing needs for features supporting Advanced Driver Assistance Systems (ADAS) and enables fail-operational capabilities for L2++ to L5. It is offered as a Safety Element out of Context (SEooC) for use in systems up to ASIL-D in accordance with ISO 26262, with an integrated non-volatile memory (NVM) to configure an application-specific safe state. It can autonomously react to supply-voltage drops caused by load faults to protect the supply. The single-channel architecture helps prevent fault propagation to other outputs.The first family member, SPOC Wire Guard BTS80009 SWPx 1ES, is available in four variants with a scalable feature set (A, I, P, and F) and supports currents up to 34.5 A, making it suitable for replacing gate-driver ICs plus MOSFET and shunt solutions and delivering significant PCB savings.AvailabilityThe BTS80009 SWPx 1ES is now in production, with three further RDS (on) variants planned to follow by the end of 2026. 作者：Infineon来源：https://www.infineon.com

汽车前沿技术 | 英飞凌推出面向软件定义汽车的车用电子保险丝

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