Airbag control
Infineon's scalable and flexible solutions for mandatory life-saving airbag control units
With their ability to save lives and reduce injuries, automotive airbag control systems are a mandatory safety feature in today’s vehicles. Despite their vitality, there is enormous pressure to keep the cost of airbags as low as possible – without compromising passenger safety. What you specifically need for airbag applications: Scalable, flexible airbag solutions, and a system that meets the requirements of ASIL-D (ISO 26262).
Reliable solutions for entry-level and high-end airbag systems
Infineon provides flexible semiconductor solutions for both entry-level and high-end airbag control unit systems meeting the ASIL-D requirements. Likewise, you can rely on our comprehensive system expertise for all airbag-related questions. And since Infineon supplies all components from one single source, you can rest assured that your automotive airbag applications will always function reliably.
- ASIL-D compliant
- Full range of airbag ASSPs
- High scalability and flexibility
- High system interoperability
- Best price-performance ratio
- Extremely low failure rate products
Wide range of benefits including improved safety and performance
- Airbag systems are standard in most cars and mandatory in many countries.
Infineon’s broad product portfolio supports scalability and flexibility for building systems from four to over twenty firing loops. - Full range of airbag ASSPs from pressure sensors for side impact detection to driver and transceiver ICs.
- High-performance 32-bit AURIX™ MCU family with dedicated safety features enables the integration of multiple functions
- The components are optimized in terms of both system interoperability and the best price-performance ratio.
- These systems are mandatory in order to achieve the highest possible scores in the various “New Car Assessment Programs” (NCAP) around the world.
F-RAM offers a virtually unlimited endurance of 100 trillion read and write cycles. Traditional non-volatile memories typically have less than one million cycle endurance, forcing system designers to use complex wear-leveling routines and up to 4x higher density to extend the lifetime of these memories.
Recommended memory products for airbag system applications
Datalogging challenges in traditional event data recorders
- Temporary RAM buffer to hold an event data record. More data means more internal RAM.
- Event-based trigger to address endurance limit. Data is logged in non-volatile memory after the event using back-up power.
- Higher back-up capacitor for larger data
Infineon solution
- Fast write and instant non-volatile F-RAM memory enables continuous data logging
- Infinite endurance eliminates the need for a temporary RAM buffer
- Continuous logging means event records are non-volatile even before the event is triggered
F-RAM for automotive markets offers fast writes at full interface speed. F-RAM has no write delays and data is immediately non-volatile. Traditional non-volatile memories have delays of five or more milliseconds before data becomes non-volatile. In the event of a power failure, pending data is lost unless the system has extra capacitance or batteries to keep the system running until data is saved.
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