Allegro MicroSystems, LLC Announces a new Three-Wire Differential Speed Sensor Integrated Circuit

Designed with Integrated EMI Protection and Back Bias Magnet in a User-Friendly Module

September 26, 2017

ATS668SLM Product Image

Allegro MicroSystems, LLC announces a new optimized Hall-effect three-wire differential speed sensor integrated circuit (IC) and permanent magnet pellet combination. Allegro’s ATS668 has integrated EMC protection components to provide a user-friendly solution for true zero-speed digital gear tooth sensing. It is offered in a small single over-mold package that can be easily assembled and used in conjunction with a wide variety of gear tooth sensing applications. The ATS668 is designed for automotive transmission systems making it also ideal for non-automotive applications such as recreational vehicles, industrial equipment, white goods, and exercise equipment.

The device incorporates a dual element Hall IC that switches in response to differential magnetic signals created by a ferromagnetic target. The IC contains a sophisticated compensating circuit designed to eliminate the detrimental effects of magnet and system offsets. Digital processing of the analog signal provides zero-speed performance independent of air gap and dynamic adaptation of device performance to the typical operating conditions found in automotive applications (i.e. vibration and runout). High-resolution peak detecting DACs are used to set the adaptive switching thresholds of the device. Hysteresis in the thresholds reduces the negative effects of any anomalies in the magnetic signal associated with system or target anomalies typically seen in many automotive applications.

The fully integrated package and industry proven algorithm performance makes the ATS668LSM an ideal solution for a wide range of speed sensing needs. This device is available in a lead (Pb) free 3-pin SIP package (SM) with matte-tin leadframe plating.

Please click here to download a copy of ATS668 Hall-effect three-wire differential speed sensor integrated circuit (IC) data sheet.



A propos d'Allegro

Allegro MicroSystems, LLC est leader dans le développement, la fabrication et le marketing de circuits intégrés de puissance ainsi que de capteurs magnétiques à effet Hall. Les solutions innovantes d'Allegro sont utilisées dans des applications à forte croissance dans les secteurs tels que l'automobile, la communication, l'ordinateur et la bureautique, les produits grand publique ainsi que dans l'industrie. Le siège social d'Allegro est à Worcester dans le Massachusetts (USA) avec des centres de design et d'application situés en Amérique du Nord et du Sud, en Asie et en Europe. De plus amples informations concernant Allegro peuvent être trouvées sur le site Allegro www.allegromicro.com.

Le siège européen d’Allegro MicroSystems Europe en charge des ventes et du marketing se situe à Chertsey en Grande Bretagne. Ce centre coordonne un réseau de représentants et de distributeurs à travers l’Europe. Allegro possède aussi des centres d’applications et marketing à Annecy en France ainsi qu’à Edimbourg en Ecosse.


Contacts Marketing:

Mary Regan
Allegro MicroSystems Europe Ltd.
Tel: 04 50 51 23 59
Email: allegroeurope@allegromicro.com
www.allegromicro.com

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