Click to expand full text
UNISONIC TECHNOLOGIES CO., LTD
UHC188
SINGLE OUTPUT HALL EFFECT LATCH
CMOS IC
DESCRIPTION
UTC UHC188 is an integrated Hall effect latched sensor designed for electronic commutation of brush-less DC motor applications. The device using HVCMOS process 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 band-gap 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, OUT is turned on (low).