HAL1XY_1 Datasheet, PDF (1/2 Pages) Micronas – Low-Cost Hall-Effect Sensor Family

PRODUCT INFORMATION
HAL 1xy
April/2009
HAL^® 1xy
Low-Cost Hall-Effect Sensor Family
The HAL 1xy Hall switch family is designed
for home appliances and industrial applica-
tions. The sensors are produced in CMOS
technology and include a temperature-com-
pensated Hall plate with active offset com-
pensation, 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 HAL 1xy family is available in the
SOT89B SMD package and in the leaded
TO92UA package.
Features
V Temperature ranges
– C (Commercial, T_J = 0 °C to +85 °C)
– I (Industrial, T_J = 20 °C to +125 °C)
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 home
appliances and industrial applications
V High ESD rating
Major Applications
The HAL 1xy is the optimal system solution
for application fields, such as:
V White goods
– selector switches
– door lock detection
– RPM detection
V Power tools
– speed control
– direction switch
V Home automation
– garage openers
– door openers
V Industrial applications
– Endposition detection
– RPM measurement of motors
– Brushless DC motors
– RPM measurements in flow meters
– Replacement of micro switches