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AH3777 - HIGH-VOLTGAE LOW-SENSITIVITY HALL EFFECT LATCH

General Description

The AH3777 is a high voltage, low sensitivity Hall effect latch IC designed for commutation of brushless DC motors, flow meters, linear encoders and position sensors in industrial and consumer home appliance and personal care applications.

Key Features

  • Bipolar Latch Operation (South Pole: On, North Pole: off).
  • 3.0V to 28V Operating Voltage Range.
  • Low Sensitivity: BOP and BRP of +140G and -140G Typical.
  • Single, Open-Drain Output with Overcurrent 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 Operat.

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AH3777 HIGH-VOLTGAE LOW-SENSITIVITY HALL EFFECT LATCH Description The AH3777 is a high voltage, low sensitivity Hall effect latch IC designed for commutation of brushless DC motors, 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 AH3777 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 overcurrent limit and a Zener clamp.