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3421 - HALL-EFFECT/ DIRECTION-DETECTION SENSORS

Datasheet Summary

Description

The integrated circuit contains an internal voltage regulator that powers the Hall sensors and both the analog and digital circuitry.

This regulator allows operation over a wide supply voltage range and provides some immunity to supply noise.

Features

  • I I I I Internal Direction-Decoding Circuitry Two Matched Hall Latches On A Single Substrate Superior Temperature Stability 4.5 V to 18 V Operation Electrically Defined Power-On State Under-Voltage Lockout Always order by complete part number, e. g. , A3421EKA . 3421 AND 3422 HALL-EFFECT,.

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Datasheet preview – 3421

Datasheet Details

Part number 3421
Manufacturer Allegro MicroSystems
File Size 160.36 KB
Description HALL-EFFECT/ DIRECTION-DETECTION SENSORS
Datasheet download datasheet 3421 Datasheet
Additional preview pages of the 3421 datasheet.

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Full PDF Text Transcription

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3421 AND 3422 PRELIMINARY INFORMATION (subject to change without notice) September 6, 2000 HALL-EFFECT, DIRECTION-DETECTION SENSORS The A3421xKA and A3422xKA Hall-effect, direction-detection sensors are a new generation of special-function integrated sensors that are capable of sensing the direction of rotation of a ring magnet. These transducers provide separate digital outputs that provide information on magnet rotation speed, direction, and magnet pole count. These devices eliminate the major manufacturing hurdles encountered in fine-pitch direction-detection applications, namely maintaining accurate mechanical location between the two active Hall elements.
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