feeling单片机 fs443

atures 

             ?wide operating voltage range: 3.0v to 28v

             ? maximum output sink current 50ma

             ? open-collector pre-driver

             ? power reverse polarity protection

             ? available in sip-3l package

general description 

the fs1102 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 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. a north pole of sufficient strength will turn the output on. in the absence of a magnetic field, the output is off.

pin descriptions 

legend: i=input, o=output, i/o=input/output, p=power supply, g=ground