HAL114 Datasheet, PDF (3/9 Pages) Micronas – Unipolar Hall Switch IC

HAL114
Functional Description
The HAL114 is a CMOS integrated circuit with a switch-
ing output in response to magnetic fields. It processes
the “Hall Voltage” internally: The Hall Voltage is propor-
tional to the magnetic flux component Bz orthogonal to
an integrated Hall Plate, in case an electric current is im-
posed to the plate. The HAL114 compares the Hall Volt-
age with a predefined threshold and generates the out-
put signal dependent of the direction of the magnetic
field. A special circuit compensates for the temperature
dependent effects of the IC, as well as the external mag-
net. A built-in hysteresis eliminates possible oscillations
of the output signal adjacent to its switching point so that
“output bouncing” is avoided. The output is short-circuit
protected by limiting high currents and by sensing ex-
cess temperature. Shunt protection devices clamp
voltage peaks at the Output-Pin and V_DD-Pin together
with external series resistors. Reverse current is limited
at the V_DD-Pin by an internal series resistor up to –15 V.
No external reverse protection diode is needed at the
V_DD-Pin for values ranging from 0 V to –15 V.
V_DD
1
Reverse
Voltage &
Overvoltage
Protection
HAL 114
Temperature
Dependent
Bias
Hysteresis
Control
Short Circuit &
Overvoltage
Protection
GND
2
Hall Plate
Comparator
Output
OUT
3
Fig. 2: HAL114 block diagram
Dimensions of Sensitive Area
0.4 mm x 0.2 mm
Positions of Sensitive Area
SOT-89A
x = 0 ± 0.2
y = 0.98 ± 0.2
TO-92UA
x = 0 ± 0.2
y = 1.0 ± 0.2
x is referenced to the center of the package
Outline Dimensions
0.125
0.7
4.55 ±0.1
1.7
2
sensitive area
y
4 ±0.2
1.53 ±0.05
1
2
0.4
0.4
1.5
3.0
2.6 ±0.1
top view
3
0.4
branded side
SPGS7001-6-A/2E
0.05 ±0.05
Fig. 3:
Plastic Small Outline Transistor Package
(SOT-89A)
Weight approximately 0.04 g
Dimensions in mm
1.5 ±0.05
0.3
4.06 ±0.1
2.03
sensitive area
y
3.05 ±0.1
0.48
3.1
0.55 1 2 3
14.0
0.36
min.
0.42
1.27 1.27
2.54
branded side
45°
0.8
SPGS7002-6-A/1E
Fig. 4:
Plastic Transistor Single Outline Package
(TO-92UA)
Weight approximately 0.12 g
Dimensions in mm
MICRONAS INTERMETALL
3