A3144 OH3144 Y3144 HALL EFFECT SENSOR SWITCH IC

SEN-0021

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The A3144 is an integrated Hall effect nonlatching 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).

Specifications:
– Working Voltage: 3.5 – 24 V
– Technology: CMOS
– Input Type: Schmitt Trigger
– Output Type: Open-drain
– Output Current: 50 mA (max)
– Packaging: TO-92
– Features; Equipped internal voltage regulator

Paket : 1x A3144 OH3144 Y3144 HALL EFFECT SENSOR SWITCH IC

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