Infineon SPOC Wire Guard BTS80009 SWPx 1ES Automotive eFuse Launch

Infineon Introduces Advanced Automotive eFuse Technology

Infineon Technologies AG presented the Infineon SPOC Wire Guard BTS80009 SWPx 1ES, a 12 V automotive eFuse with an SPI interface designed for next-generation electrical and electronic architectures. The device combines a protected high-side switch with integrated I²t wire protection, software configurability, and advanced diagnostic functions. It supports software-defined vehicle concepts by enabling flexible configurations and over-the-air update compatibility for modern vehicle platforms.

Enhanced Protection and Software-Based Configuration

The Infineon SPOC Wire Guard BTS80009 SWPx 1ES provides ultrafast failure isolation within microseconds and delivers precise current sensing capabilities. The device allows vehicle manufacturers to adjust configuration and protection parameters through software, supporting platform reuse across multiple vehicle variants. This flexibility helps reduce hardware complexity while improving adaptability for different vehicle architectures and application requirements.

In addition to protection functions, SPOC Wire Guard devices provide real-time system status information, pre-warning indicators, and advanced diagnostics. These features help improve vehicle availability by allowing electronic systems to identify potential issues earlier and support more effective fault management strategies. The technology aligns with increasing demands for reliable and intelligent vehicle electrical systems.

Supporting ADAS and Functional Safety Requirements

The SPOC Wire Guard technology addresses growing requirements for advanced driver assistance systems and enables fail-operational capabilities for L2++ to L5 automated driving applications. It is offered as a Safety Element out of Context (SEooC), supporting system development up to ASIL-D according to ISO 26262 functional safety standards. These capabilities make the technology suitable for future vehicle platforms requiring higher levels of safety and system reliability.

Production Status and Future Expansion

The BTS80009 SWPx 1ES is currently in production, with three additional RDS (on) variants planned for introduction by the end of 2026. The product expansion is expected to support broader adoption of intelligent power distribution solutions across automotive applications. Germany-based automotive semiconductor expertise continues to contribute to the development of safer and more software-oriented vehicle architectures.

Frequently Asked Questions

What is the Infineon SPOC Wire Guard BTS80009 SWPx 1ES?
The Infineon SPOC Wire Guard BTS80009 SWPx 1ES is a 12 V automotive eFuse designed for advanced electrical architectures with integrated protection and diagnostics. It combines a high-side switch, I²t wire protection, software configuration, and current sensing capabilities. The device supports software-defined vehicles, over-the-air updates, and functional safety requirements for future automated driving systems.