Speed And Direction Sensor Enlists Vertical And Planar Hall Elements

Speed And Direction Sensor Enlists Vertical And Planar Hall Elements
Allegro MicroSystems Inc.

The A1262 embarks as a unique dual-channel Hall-effect latch featuring two-dimensional (2D) sensing via a combination of vertical Hall and planar Hall elements. The quadrature outputs of the A1262 allow rotation direction and position to be determined, such as when sensing a rotating ring-magnet target. The 2D operation of the combined planar and vertical Hall elements allows for 90° of phase separation between channels that is inherently independent of ring magnet geometry (pole pitch). The device is available in two options. Both options feature a planar Hall element that is sensitive to magnetic fields perpendicular to the face of the package (Z). The other channel comes from a vertical Hall element that is sensitive in either the X or Y direction. The Y option features a vertical Hall plate that is sensitive to magnetic fields parallel with the face of the package across the leaded edges of the package. The X option features a vertical Hall plate that is sensitive to magnetic fields parallel with the face of the package across the leadless edges of the package, resulting in lower total effective air gap than can be achieved with competing solutions. Price for the A1262LLHLX-T or A1262LLHLX-X-T is $0.493 each/1,000.

Allegro MicroSystems
Worcester, MA
508-853-5000
http://www.allegromicro.com

Contact Info

Company: Allegro MicroSystems Inc.
Country: United States (USA)
Phone number: 508-853-5000
Fax: 508-853-7895

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