Hall Effect Sensor

Sparkfun ElectronicsSKU: RB-Spa-251
Manufacturer #: COM-09312

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Sale price ¥173

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  • Designed for electronic commutation of brush-less DC motor applications
  • Wide operating voltage range
  • 5mA maximum sinking output current
  • RoHS Compliant

The Hall Effect Sensor is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device includes an on-chip Hall voltage generator for magnetic sensing, a comparator that amplifies the Hall voltage, and a schmitt trigger to provide switching hysteresis for noise rejection, and open-collector output. An internal bandgap regulator is used to provide temperature compensated supply voltage for internal circuits and allows a wide operating supply range.

If a magnetic flux density larger than threshold Bop, DO is turned on (low). The output state is held until a magnetic flux density reversal falls below Brp causing DO to be turned off (high).


  • 3.5V to 20V DC operation voltage
  • Temperature compensation
  • Wide operating voltage range
  • Open-Collector pre-driver
  • 25mA maximum sinking output current
  • Reverse polarity protection
  • Lead Free Package: SIP-3L


  • Brushless DC Motor
  • Brushless DC Fan
  • Revolution counting
  • Speed measurement


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