Hall Effect Sensor (Hall Latch – High Sensitivity)

Hall Effect Sensor (Hall Latch – High Sensitivity)
Excl. Tax: Rs. 71.43 Incl. Tax: Rs. 75.00

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SKU: SFE-09312
by Sparkfun

Availability: In stock

The US1881 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.

Description

Details

The US1881 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:

  • 3.5V to 24V DC operation voltage
  • Low current consumption
  • Temperature compensation 
  • Wide operating voltage range
  • Open-Collector pre-driver
  • 50mA maximum sinking output current
  • Reverse polarity protection
  • Lead Free Package: TO-92

Documents:

Additional Information

Additional Information

Type Magnet
IC Name US1881
IC Manufacturer Melexis
Input Voltage (DC) 3.5V to 24V
Supply Current (Maximum) 5 mA
Output Interface Digital
Object Distance (Range) No
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