SINGLE OUTPUT HALL EFFECT LATCH
DESCRIPTION
UTC UHC182 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). The output state is held until a magnetic flux
density reversal falls below Brp causing OUT to be turned off
(high).
FEATURES
* 2.8V~30V DC operation voltage
* Temperature compensation
* Wide operating voltage range
* Open-Drain pre-driver
* 25mA maximum sinking output current. |