HAL1xy
Hall-Effect Switch IC Family
Note: The HAL1xy family has been designed for com-
mercial and industrial applications. It is not intended to
be used in automotive or automotive-like applications.
1.1. Family Overview
DATA SHEET
This sensor family consists of sensors with a latching
and unipolar output behavior.
Type
Switching
Behavior
unipolar
latching
latching
latching
unipolar
unipolar
unipolar
unipolar
Sensitivity
low
high
medium
low
high
low
medium
high
see
Page
1. Introduction
The HAL1xy Hall switch family is produced in CMOS
technology. The sensors include a temperature-com-
pensated Hall plate with active offset compensation, a
comparator, and an open-drain output transistor. The
comparator compares the actual magnetic flux through
the Hall plate (Hall voltage) with the fixed reference
values (switching points). Accordingly, the output tran-
sistor is switched on or off.
The active offset compensation leads to magnetic
parameters which are robust against mechanical
stress effects. In addition, the magnetic characteristics
are constant in the full supply voltage and temperature
range.
The HAL1xy family is available in the SMD-package
SOT89B-3 and in the leaded version TO92UA-6.
101
102
103
104
106
107
108
109
Unipolar Sensors:
The output turns low with the magnetic south pole on
the branded side of the package and turns high if the
magnetic field is removed. The sensor does not
respond to the magnetic north pole on the branded side.
Latching Sensors:
The sensors have a latching behavior and require a
magnetic north and south pole for correct functioning.
The output turns low with the magnetic south pole on
the branded side of the package and turns high with
the magnetic north pole on the branded side. The
output does not change if the magnetic field is
removed. For changing the output state, the opposite
magnetic field polarity must be applied.
4
April 8, 2009; DSH000150_001EN
Micronas
MICRONAS [ MICRONAS ]
