Allegro MicroSystems ATS643LSH
Zero-Speed Differential Gear Tooth Sensor
| Part No. | ATS643LSH |
|---|---|
| Datasheet | ATS643LSH Download |
| Manufacturer |  Allegro MicroSystems |
| Description | Zero-Speed Differential Gear Tooth Sensor |
| Buy | Stock & Price |
FEATURES AND BENEFITS
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● Fully-optimized differential digital gear tooth sensor Single chip-IC for high reliability Internal current regulator for 2-wire operation Small mechanical size (8 mm diameter x 5.5 mm depth) Switchpoints air gap independent Digital output representing gear profile Precise duty cycle accuracy throughout temperature range
● Large operating air gaps
● <2 ms power-on time
DESCRIPTION
The ATS643 is an optimized combination of integrated circuit and magnet that provides a manufacturer-friendly solution for true zero-speed digital gear-tooth sensing in two-wire applications. The device consists of a single-shot molded plastic package that includes a samarium cobalt magnet, a pole piece, and a Hall-effect IC that has been optimized to the magnetic circuit and the automotive environment. This small package can be easily assembled and used in conjunction with a wide variety of gear shapes and sizes. The integrated circuit incorporates a dual element Hall-effect sensor with signal processing circuitry that switches in response to differential magnetic signals created by rotating ferrous targets.
