Infineon Launches 'SPOC Wire Guard' Automotive eFuse for SDVs
Published2026.08.03 11:00.jpg)
Infineon Technologies (Korea CEO Seung-soo Lee) launched SPOC™ Wire Guard BTS80,009-SWPx-1ES, a vehicle eFuse for SDVs, on the 3rd.
The company stated that this product combines integrated I²t wire protection, software configuration, and advanced diagnostic functions in a high-side switch supporting an SPI interface, and is optimized for E/E architectures for SDVs that support Over-the-Air (OTA) updates.
Infineon explained that SPOC Wire Guard features ultra-fast fault interruption in microsecond (µs) units and precise current sensing capabilities, which can reduce the need for transient design of wiring diameter compared to conventional melting fuses.
It features a dedicated idle mode for loads requiring constant power, enabling power consumption at the level of a few µA while maintaining protection functions.
It also supports daisy-chaining of 24-bit SPI, increasing the efficiency of microcontroller I/O port utilization.
To enhance vehicle platform reusability, settings and protection parameters can be flexibly adjusted via software.
It is explained that it also provides diagnostic functions, such as real-time status information and early warning indications, to support system optimization throughout the vehicle lifecycle.
SPOC Wire Guard is provided as a Safety Element out of Context (SEooC) applicable to ISO 26,262-based systems up to ASIL-D level.
It supports the implementation of fail-operational functions from ADAS L2++ to L5 and allows setting application-specific safety states. It is equipped with built-in non-volatile memory (NVM).
A single-channel architecture prevents faults from propagating to other output channels.
The company stated that the product consists of four versions, including A, I, P, and F, and supports a maximum current of 34.5A, which can replace gate driver ICs, MOSFETs, and shunt-based solutions and reduce PCB space.
BTS80,009-SWPx-1ES is currently in mass production, and three derivative products with different RDS(on) specifications are scheduled to be released by the end of 2026.
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