HAL2XY_1 Datasheet, PDF (1/2 Pages) Micronas – Low-Cost Hall-Effect Sensor Family

PRODUCT INFORMATION
HAL 2xy
April/2009
HAL 2xy
Low-Cost Hall-Effect Sensor Family
The HAL 2xy Hall switch family is produced
in CMOS technology. The sensors include a
temperature-compensated Hall plate with
active offset compensation, a comparator,
and an open-drain output transistor.
The comparator compares the actual mag-
netic flux through the Hall plate (Hall volt-
age) with the fixed reference values (switch-
ing points). Accordingly, the output
transistor is switched on or off.
The active offset compensation leads to
magnetic parameters which are robust
against mechanical stress effects. In addi-
tion, the magnetic characteristics are con-
stant in the full supply voltage and tempera-
ture range.
The sensors are designed for industrial and
automotive applications and operate with
supply voltages from 3.8 V to 24 V in the
ambient temperature range from −40 °C up
to 125 °C.
The HAL 2xy family is available in the
SOT89B SMD package and in the leaded
TO92UA package.
Features
V Operates from 3.8 V to 24 V supply volt-
age
V Operates with static magnetic fields and
dynamic magnetic fields up to 10 kHz
V Overvoltage protection at all pins
V Reverse-voltage protection at V_DD pin
V Magnetic characteristics are robust
against mechanical stress effects
V Short-circuit protected open-drain out-
put by thermal shut down
V Constant switching points over a wide
supply voltage and temperature range
V The decrease of magnetic flux density
caused by rising temperature in the sen-
sor system is compensated by a built-in
negative temperature coefficient of the
magnetic characteristics
V High temperature stability for automotive
or industrial applications
V High ESD rating
Major Applications
The HAL 2xy is the optimal system solution
for applications, such as:
V Endposition detection
V RPM measurement of motors in various
applications, such as power window
V Brushless DC motors
V RPM measurements in flow meters
V Replacement of micro switches