A1171 Micropower Ultrasensitive Hall Effect Switch

The A1171 integrated circuit is an ultrasensitive, Hall effect Switch with latched digital outputs and either unipolar or omnipolar magnetic actuation. It features operation at low supply currents and voltages, making it ideal for battery-operated electronics. The low operating supply voltage, 1.65to3.5 V, and unique clocking algorithm assist in reducing the average operating power consumption. For example, the power requirement is less than 15 W with a 2.75 V supply.
Unlike more traditional Hall effect switches, the A1171 allows the user to configure how the device is magnetically actuated. Under default conditions the device activates output switching with either a north or south polarity magnetic field of sufficient strength. The magnetic actuation CAN be set via an external selection pin to operate in a unipolar mode, switching only on a north or south polarity but not both. Furthermore, the output of the A1171 CAN be configured to Switch either off or on in the absence of any significant magnetic field. Lastly, the A1171 has two push-pull output structures.
By Allegro MicroSystems, Inc.
A1171 's PackagesA1171 's pdf datasheet

A1171 Pinout, Pinouts
A1171 pinout,Pin out
This is one package pinout of A1171,If you need more pinouts please download A1171's pdf datasheet.

A1171 Application circuits
A1171 circuits
This is one application circuit of A1171,If you need more circuits,please download A1171's pdf datasheet.

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