Hall-Effect Sensor – US1881 (Latching)

SKU: COM-09312
Sparkfun
Availability:

286 in stock


Hall-Effect Sensor – US1881 (Latching)

4.73 AED inc. tax

286 in stock

Estimated delivery date Sunday, 12th June

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:**

* [Datasheet](http://www.sparkfun.com/datasheets/Components/General/Hall-US1881EUA.pdf)

**Videos**

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SKU: COM-09312 Category: Tags: ,
Weight 0.0002 kg
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