A3425LK Просмотр технического описания (PDF) - Allegro MicroSystems

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A3425LK

Ultra-Sensitive Dual-Channel Quadrature Hall-Effect Bipolar Switch

Allegro MicroSystems 

A3425

Ultra-Sensitive Dual-Channel Quadrature

Hall-Effect Bipolar Switch

Typical Applications Operation

V+

VOUTPUT(OFF)

VOUTPUT(ON)(sat)

B+

BHYS

Output voltage in relation to sensed magnetic flux density.

Output on each channel independently follows the same

pattern of transition through BOP followed by transition

through BRP.

Channel A

M agnetic Field

at Hall Element E1

Channel B

M agnetic Field

at Hall Element E2

Channel A

Output Signal

at OUTPUTA

Channel B

Output Signal

at OUTPUTB

Quadrature output signal configuration. The outputs of the two

output channels have a phase difference of 90º when used

with a properly designed magnet that has an optimal pole pitch

of twice the Hall element spacing of 1.0 mm.

Allegro MicroSystems, Inc.

8

115 Northeast Cutoff, Box 15036

Worcester, Massachusetts 01615-0036 (508) 853-5000

www.allegromicro.com

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