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3421 - HALL-EFFECT/ DIRECTION-DETECTION SENSORS

General 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.

Key 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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Other Datasheets by Allegro MicroSystems

Part Number Description
3422 DIRECTION-DETECTION SENSORS
3425 DUAL/ CHOPPER-STABILIZED/ ULTRA-SENSITIVE/ BIPOLAR HALL-EFFECT SWITCH

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
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.