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AH337 - SINGLE PHASE HALL EFFECT SWITCH

General Description

AH337 is an unipolar Hall-Effect sensor for contactless switching applications.

Key Features

  • Unipolar Hall-Effect sensor.
  • 4.2V to 28V DC operating voltage.
  • Temperature compensation.
  • Open drain pre-driver.
  • 25mA maximum output sink current.
  • Operating temperature: -40°C to +125°C.
  • SIP-3L and SC59 packages (SC59 is commonly known as SOT23 in Asia).
  • Green Molding Compound (No Br, Sb) (Note 1).
  • VCD/DVD Loader, CD/DVD ROM.
  • Cover Detector.
  • Speed Measurement.
  • Home Appliances.
  • Ho.

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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.

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AH337 SINGLE PHASE HALL EFFECT SWITCH Description Pin Assignments AH337 is an unipolar Hall-Effect sensor for contactless switching applications. The device includes an on-chip Hall voltage generator for magnetic sensing, an amplifier that amplifies the Hall voltage, a Schmitt trigger to provide switching hysteresis for noise rejection, and an open-collector output. The band-gap regulator allows a wide operating voltage range. When the magnetic flux density (B) is larger than operate point (Bop), output is switched on (OUT pin is pulled low). The output state is held on until a magnetic flux density falls below Brp. When B is less than Brp, the output is switched off. (Top View) SIP-3L 3. OUT 2. GND 1. Vdd (Top View) GND 2. SC59 3. OUT 1.