Functional safety is the engineering work of ensuring that safety-related functions respond appropriately when faults occur—and of documenting why the design is adequate for its intended use. Infineon’s AURIX™ TC3xx Safety Application Kit offers a practical way to explore safety mechanisms, fault injection, and alarm monitoring. It is a demonstration and prototyping aid, not proof that a vehicle system or product complies with ISO 26262.
What functional safety means in an automotive project
Functional safety focuses on risks that can arise when electrical or electronic systems behave incorrectly. In automotive development, teams identify hazardous situations, define safety goals, derive technical requirements, implement measures in hardware and software, and verify that those measures work in the intended system.
ISO 26262 provides a lifecycle framework for this work. It addresses both systematic failures, which can arise from errors in requirements, design, or implementation, and random hardware failures. A safety process connects hazard analysis and risk assessment to safety goals, architecture, implementation, verification, and evidence. The webinar introducing this topic frames its coverage around those failure types, safety goals, ASIL classifications, and the Safety Element out of Context (SEooC) concept, before discussing how requirements map to system architectures. All About Circuits’ webinar overview
How safety goals and ASILs fit together
A safety goal states, at a high level, what must be achieved to avoid or reduce an identified hazard. The Automotive Safety Integrity Level (ASIL) expresses the safety rigor associated with a particular safety requirement, based on the hazard analysis and risk assessment for the item. ASIL is not a rating that can be assigned to an MCU or development board in isolation; it belongs to requirements and their context in a defined system.
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Teams decompose safety goals into requirements and allocate them across system elements. The resulting architecture may rely on hardware safety mechanisms, software measures, monitoring, diagnostic coverage, and system-level reactions to detected faults. The correct measures depend on the safety concept and the assumptions made for the application; a demonstration of a mechanism is not a substitute for the project’s analysis and verification.
Why AURIX TC3xx is treated as a SEooC
Infineon describes the TC3xx as a hardware component developed without tailoring it to one specific vehicle item. Its application note says: “Since it is not tailored for a specific item, according to automotive safety standard ISO 26262 part 10, the AURIX™ TC3xx is a Safety Element out of Context (SEooC) hardware component.” Infineon Technologies, AN0001, AURIX™ TC3xx functional safety (FuSa) in a nutshell
“Out of context” means that the component is not designed against the hazards and assumptions of one particular vehicle system. Infineon provides integration guidance and safety artifacts, but the system integrator must determine which use cases apply and satisfy the component’s assumptions and instructions in the target system. The application note references ISO 26262:2018 and describes the customer safety package as supporting compliance justification under ISO 26262 and IEC 61508; project teams should check the applicable document revision and access conditions before relying on it.
What is in the customer safety package
Infineon identifies a safety case report, safety manual, and FMEDA template among the TC3xx safety materials. The package contains device-specific safety documentation and is provided under NDA. These materials support the integrator’s work; they do not certify the integrator’s finished product or remove the need for project-specific safety analysis. Infineon AN0001
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What the AURIX TC3xx Safety Application Kit demonstrates
The kit is a physical demonstrator built around the TC397 TFT Application Kit board and an add-on safety board. Infineon’s product description covers implementation of safety mechanisms, hardware and software fault injection, alarm generation, and monitoring through TFT and terminal outputs. The goal is to make selected safety behaviors observable on a bench rather than to supply a complete vehicle safety architecture. Infineon APPKIT-A2G-SAFETY evaluation-board page
Infineon’s presentation dated March 26, 2024 describes the board pairing and identifies supporting materials that include a quick-start guide, application note, example metric-calculation documentation, and demonstration software. The product page and presentation describe a teaching and evaluation platform; they do not provide an independently measured performance claim for a production system. Infineon AURIX TC3xx Safety kit presentation, March 26, 2024
How to use the kit productively
- Start with the safety concept. Identify the safety goal, relevant requirements, and the component assumptions that apply to your intended system before treating a demonstration as relevant evidence.
- Set up the demonstration platform. Use the TC397 TFT Application Kit with its add-on safety board, then follow the kit’s quick-start guide and demonstration software instructions.
- Observe a fault and its response. Use the available fault-injection examples to see how selected hardware or software faults lead to safety-management responses, alarms, and monitoring output.
- Map what you learn to the application. Compare demonstrated mechanisms with the safety manual’s device-specific guidance and determine what measures, diagnostics, and reactions the actual system requires.
- Build project evidence separately. Perform and document the analyses, implementation, verification, and validation required for the target item; the kit’s examples do not establish that work on your behalf.
Safety Application Kit versus the TC375 Safety Lite Kit
Infineon also describes a separate TC375 Safety Lite Kit route. Its getting-started page presents it as existing TC375 Lite Kit hardware combined with a freely available safety software project—not as the same physical configuration as the TC397-based Safety Application Kit. Infineon, How to get started with AURIX
| Option | What it is | Best suited to |
|---|---|---|
| AURIX TC3xx Safety Application Kit | TC397 TFT Application Kit plus add-on safety board; includes demonstration software and materials, with fault injection and alarm monitoring described by Infineon. | Hands-on exploration of safety mechanisms and observable fault responses on a dedicated demonstrator. |
| TC375 Safety Lite Kit | TC375 Lite Kit hardware combined with a freely available safety software project, as described on Infineon’s getting-started page. | A lighter way to begin working with the safety software project using the TC375 Lite Kit hardware. |
What the kit can—and cannot—establish
- It can help engineers learn: how selected safety mechanisms are demonstrated, how injected faults can produce alarms, and how monitoring outputs expose behavior.
- It cannot establish: that a particular vehicle system meets its safety goals, that the selected ASIL is satisfied, or that an end product is ISO 26262-compliant merely because the kit was purchased or used.
- It does not replace: the device safety documentation, application-specific assumptions, system-level safety analysis, or the verification and evidence required for the project.
For a project evaluation, treat the kit as one engineering aid among several. Confirm access to the relevant device safety package and use its guidance alongside the system’s own safety lifecycle. The webinar featuring Valon Shala, Infineon’s Principal Engineer for Field Application Engineering and Functional Safety for automotive microcontrollers, is an educational overview of these concepts rather than a compliance assessment of any product. All About Circuits webinar overview
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