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Allegro MicroSystems A²-SIL™

The International Organization for Standardization (ISO) released a safety standard in 2011 to comply with needs specific to the application sector of electrical/electronic (E/E) systems within road vehicles* designated as: ISO 26262: Road Vehicles – Functional Safety. Auto makers worldwide are beginning to require that electronic safety systems and their components are developed in compliance with this state-of-the-art standard.

With the increased use of technologically complex electronics in automotive safety systems, it is critical that these systems are thoroughly designed, manufactured, validated as safe and reliable, and integrated with other electronic systems in the automobile.

Allegro MicroSystems, LLC is a leading supplier of automotive electronic integrated circuits and is fully supportive of this safety initiative. The creation of an active Functional Safety (FuSa) culture has become an important corporate objective within Allegro and employees have undergone extensive safety training as part of our commitment to the automotive market.

*The standard applies specifically to safety-relevant E/E systems in standard passenger cars up to 3,500kg.

Application Note: Functional Safety Challenges to the Automotive Supply Chain

Allegro MicroSystems A²-SIL™ Products

Application	Product Type	Part Number	ASIL Level
Power Steering Systems	Hall-Effect Switch, Vertical	A1130-1-2	ASIL B
	Hall-Effect Switch	APS11000	ASIL A
	Hall-Effect Switch, Vertical	APS11060	ASIL A
	Hall-Effect Switch	APS11200	ASIL A
	Hall-Effect Switch, 2-Wire	APS11500	ASIL A
	Hall-Effect Switch, 2-Wire, Programmable	APS11900	ASIL A
	Hall-Effect Latch	APS12200-10-30	ASIL A
	Hall-Effect Latch, 2-Wire	APS12400	ASIL A
	Dual Hall-Effect Latch	APS12625	ASIL A
	Dual Hall-Effect Latch	APS12626	ASIL A
	Angle Position Sensor	A1333	ASIL B ASIL D
	Angle Position Sensor	A1339	ASIL B ASIL D
	Full-Bridge MOSFET Driver	A3922	ASIL D
	Full-Bridge MOSFET Driver	A3924	ASIL D*
	BLDC Gate Driver	A4911	ASIL D
	BLDC Gate Driver	A4913	ASIL D
	BLDC Gate Driver	A4916	ASIL D
	Half-Bridge MOSFET Driver	A4926	ASIL B
	Half-Bridge MOSFET Driver	A4927	ASIL B
	Phase Disconnect Switch	A6862	ASIL B*
	Multi-Output Regulator	ARG81400	ASIL D
	Multi-Output Regulator	ARG82801	ASIL D*
	Multi-Output Regulator	ARG82800	ASIL D
	Multi-Output Regulator	A4412	ASIL D
Anti-Lock Brake/Stability Control	Hall-Effect Switch, Vertical	A1130-1-2	ASIL B
	Hall-Effect Switch, Vertical	APS11060	ASIL A
	Hall-Effect Switch, 2-Wire	APS11500	ASIL A
	Hall-Effect Switch, 2-Wire, Programmable	APS11900	ASIL A
	Hall-Effect Latch, 2-Wire	APS12400	ASIL A
	Half-Bridge MOSFET Driver	A4926	ASIL B
	Half-Bridge MOSFET Driver	A4927	ASIL B
	Full-Bridge MOSFET Driver	A3922	ASIL D
	Full-Bridge MOSFET Driver	A3924	ASIL D*
	Multi-Output Regulator	ARG81400	ASIL D
	Multi-Output Regulator	ARG82800	ASIL D
	Multi-Output Regulator	A4412	ASIL D
Transmission	Hall-Effect Switch, Vertical	A1130-1-2	ASIL B
	Hall-Effect Switch	APS11000	ASIL A
	Hall-Effect Switch, Vertical	APS11060	ASIL A
	Hall-Effect Switch	APS11200	ASIL A
	Hall-Effect Switch, 2-Wire	APS11500	ASIL A
	Hall-Effect Switch, 2-Wire, Programmable	APS11900	ASIL A
	Hall-Effect Latch	APS12200-10-30	ASIL A
	Hall-Effect Latch, 2-Wire	APS12400	ASIL A
	Half-Bridge MOSFET Driver	A4926	ASIL B
	Half-Bridge MOSFET Driver	A4927	ASIL B
	Dual Hall-Effect Latch	APS12625	ASIL A
	Dual Hall-Effect Latch	APS12626	ASIL A
	Full-Bridge MOSFET Driver	A3922	ASIL D
	Full-Bridge MOSFET Driver	A3924	ASIL D*
	Multi-Output Regulator	ARG81400	ASIL D
	Multi-Output Regulator	ARG82800	ASIL D
	Multi-Output Regulator	A4412	ASIL D
HEV/EV Systems	Half-Bridge MOSFET Driver	A4926	ASIL B
	Half-Bridge MOSFET Driver	A4927	ASIL B
	Full-Bridge MOSFET Driver	A3922	ASIL D
	Full-Bridge MOSFET Driver	A3924	ASIL D*
	Multi-Output Regulator	ARG81400	ASIL D
	Multi-Output Regulator	ARG82800	ASIL D
	Multi-Output Regulator	A4412	ASIL D
Various (SEooC)	Hall-Effect Switch, Vertical	A1130-1-2	ASIL B
	Hall-Effect Switch	APS11000	ASIL A
	Hall-Effect Switch, Vertical	APS11060	ASIL A
	Hall-Effect Switch	APS11200	ASIL A
	Hall-Effect Switch, 2-Wire	APS11500	ASIL A
	Hall-Effect Switch, 2-Wire, Programmable	APS11900	ASIL A
	Hall-Effect Latch	APS12200-10-30	ASIL A
	Hall-Effect Latch, 2-Wire	APS12400	ASIL A
	Dual Hall-Effect Latch	APS12625	ASIL A
	Dual Hall-Effect Latch	APS12626	ASIL A

*Pending

A²-SIL™ ISO 26262

ISO 26262 Certified Products have been designed in compliance to the ISO 26262:2011 standard at the component level.

A²-SIL™ Highlights

Offer A²-SIL™ safety products that are fully compliant to ISO 26262.
Products cover a range of sensor ICs, motor driver ICs and power management semiconductors.
Products are designed and manufactured to an ISO 26262 compliant process certified by SGS-TÜV Saar GmbH.
A²-SIL™ product documentation includes:
- DFMEA : IC Design failure mode and effect analysis
- FMEDA : System level failure mode and effect with diagnostic analysis
- FTA : Fault tree analysis
- Safety Manual
Safety deliverables are optimized in close cooperation with our customers based on an understanding of the system safety requirements.

ISO 26262 Technical Advisory Group

Allegro is a member of the US technical advisory group for ISO 26262.
Allegro's Functional Safety Manager is a contributing member to ISO/PAS 19451: 'Application of ISO 26262 to Semiconductors' and is one of three US delegates to the International Semiconductor subgroup.

ISO26262 Customer-Allegro Interface

Key Automotive Applications

Comfort

Safety and ADAS

Conventional Powertrain

Hybrid / EV Solutions

Allegro MicroSystems, LLC (“Allegro”) products may, in certain cases, be promoted to assist with applications related to safety. Allegro’s objective is to provide an opportunity for customers to design and develop their own end-products that meet functional safety standards and requirements. However, Allegro’s products are not to be used in any devices or systems in which a failure of Allegro’s product can reasonably be expected to cause bodily harm. Customer agrees that it has sole responsibility for compliance with all applicable laws, regulations, and safety-related requirements regarding its products. Customer shall indemnify Allegro and its representatives against any damages arising out of the use of any Allegro products in safety-critical applications.

Allegro assumes no responsibility for the intended use of its products, nor for any infringement of patents or other rights of third parties which may result from their use. Allegro reserves the right to make, from time to time, such departures from the detail specifications as may be required to permit improvements in the performance, reliability, or manufacturability of its products. Before placing an order, customer is cautioned to verify the detailed specifications.

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