Automotive functional safety ISO 26262

The increasing complexity of vehicle technologies requires robust risk management, which is where the so-called ISO 26262 plays its role. This standard provides guidance for appropriate requirements, processes, and a risk-based approach to determine Automotive Safety Integrity Levels (ASILs). The primary goal is to minimize risks from systematic and random failures to an acceptable level.

Melexis offers comprehensive support for automotive ASIL applications

Enabling up to ASIL D system requirements: Melexis helps achieve safety goals through various safety concepts and component selections. All ASIL levels can be considered to contribute to the goal.

Diverse Product Portfolio: With a wide range of sensor and driver families, Melexis enables trade-offs between cost and integrity, guiding customers to create applications with optimal product combinations for availability, safety integrity, and cost.

ASIL-Attribute under SEooC: Melexis products generally have an ASIL-Attribute under Safety Element out of Context (SEooC), meaning they adhere to ASIL-level rigor to prevent systematic faults and achieve metrics in line with the ASIL Level.

Safety Manual: A safety manual and application notes are available upon request (under NDA), detailing the necessary conditions and assumptions. This supports the use of Melexis products in higher applications requiring up to ASIL D fail-safe or ASIL D fail-operational safety goals.

Expert Support for Decomposed Systems: Beyond single-component integration, Melexis safety experts provide extensive support for decomposed systems with homogeneous or heterogeneous redundancy or multiple channels to meet safety goals.

Module Level Dependency Analyses and Reference Concepts: Module level dependency analyses (by DFA) and principle reference concepts are available upon request (under NDA). Melexis will assist in designing the best-fitting safety concept to achieve targets.

ASIL C(D) Attribute Products: Melexis' product portfolio includes products with an ASIL C(D) attribute, indicating their capability to support ASIL D applications and verified analysis to prove this capability and assure sufficient independence.

Melexis ASIL product category

Melexis ASIL-compliant product

A Melexis “ASIL compliant” product is a product developed according to the ISO 26262 standard.

Melexis ASIL-capable product

A Melexis “ASIL capable” product is a product that can contribute to an ASIL system, developed as a QM (quality management) component, or supported by a HW-evaluation (ISO 26262-8:2018 part 13) or a Proven-In-Use argument (ISO 26262-8:2018 part 14).

Example of documentation shared with customers

Figure 1 : Melexis safety manual content overview

Summary

Name	Definition
ASIL A / B / C / D	The Automotive Safety Integrity Level (ASIL) is classified as A or B or C or D, with D representing the most stringent level
ASIL-compliant	Product developed according to the ISO 26262 standard
ASIL-capable	Product developed as a QM (Quality Management) component or supported by a HW-evaluation (ISO 26262-8:2018 part 13) or a Proven-In-Use argument (ISO 26262-8:2018 part 14)