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AH3774 - HIGH-VOLTAGE HIGH-SENSITIVITY HALL EFFECT LATCH

General Description

The AH3774 is a high-voltage, high-sensitivity Hall Effect Latch IC designed for commutation of brushless DC motor, flow meters, linear encoders and position sensors in industrial and consumer home appliance and personal care applications.

Key Features

  • Bipolar Latch (South Pole: On, North Pole: Off).
  • 3.0V to 28V Operating Voltage Range.
  • High Sensitivity: Bop and Brp of +40G and -40G Typical.
  • Single Open Drain Output with Over Current Limit.
  • Chopper Stabilized Design Provides.
  • Superior Temperature Stability.
  • Minimal Switch Point Drift.
  • Enhanced Immunity to Stress.
  • Good RF Noise Immunity.
  • Reverse Blocking Diode and Zener Clamp on Supply.
  • -40°C to +125°C O.

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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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AH3774 HIGH-VOLTAGE HIGH-SENSITIVITY HALL EFFECT LATCH Description The AH3774 is a high-voltage, high-sensitivity Hall Effect Latch IC designed for commutation of brushless DC motor, flow meters, linear encoders and position sensors in industrial and consumer home appliance and personal care applications. To support a wide range of demanding applications, the design is optimized to operate over the supply range of 3.0V to 28V. With chopper stabilized architecture and an internal bandgap regulator to provide temperature compensated supply for internal circuits, the AH3774 provides a reliable solution over the whole operating range. For robustness and protection, the device has a reverse blocking diode with a Zener clamp on the supply. The output has an over current limit and a Zener clamp.