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The PST40 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 amplifiers 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.
A
north pole of sufficient strength will turn the output ON. In
the absence of a magnetic field, the output is OFF.
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Features