DESCRIPTION

The UHC1816 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

* 3.0V~28V DC operation voltage

* Temperature compensation

* Wide operating voltage range

* Open-Drain pre-driver

* 25mA maximum sinking output current.