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Hall Effect Sensor A3144

$0.85

We recommend you to place the order in our new online store:

http://imall.iteadstudio.com/electronic-components/sensor/im120712005.html

Description:

The A3144 is an integrated Hall effect latched sensor. That's nice but what does it do? Holding a magnet near the sensor will cause the output pin to toggle. This makes for a robust presence sensor. A reed sensor also works nicely, but can be limited by the glass encapsulation and size. A hall effect sensor is much smaller, but can handle less current than a reed switch.

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).



Features

  •   Superior Temp. Stability for Automotive or Industrial Applications
  •   4.5 V to 24 V Operation … Needs Only An Unregulated Supply
  •   Open-Collector 25 mA Output … Compatible with Digital Logic
  •   Reverse Battery Protection
  •   Activate with Small, Commercially Available Permanent Magnets
  •   Solid-State Reliability
  •   Small Size
  •   Resistant to Physical Stress

Datasheet


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  • Model: SEN018
  • Shipping Weight: 5g
  • 0 Units in Stock