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A1186

Allegro MicroSystems
Part Number A1186
Manufacturer Allegro MicroSystems
Description Unipolar Hall-Effect Switches
Published Dec 22, 2005
Detailed Description A1185 and A1186 Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches The A1185 an...
Datasheet PDF File A1186 PDF File

A1186
A1186

Overview
A1185 and A1186 Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches The A1185 and A1186 are ultrasensitive, two-wire, unipolar Hall effect switches.
The operate point, BOP, can be field-programmed, after final packaging of the sensor and placement into the application.
This advanced feature allows the optimization of the sensor switching performance, by effectively accounting for variations caused by mounting tolerances for the device and the target magnet.
This family of devices are produced on the Allegro MicroSystems new DABIC5 BiCMOS wafer fabrication process, which implements a patented, high-frequency, chopper-stabilization technique that achieves magnetic stability and eliminates the offsets that are inherent in single-element devices exposed to harsh application environments.
Commonly found in a number of automotive applications, the A1185 and A1186 devices are utilized to sense: seat track position, seat belt buckle presence, hood/trunk ...


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