HAL114
4. Type Description
4.1. HAL114
Applications
The HAL114 is the optimal sensor for applications with
one magnetic polarity such as:
The HAL114 is a unipolar switching sensor (see
Fig. 4–1).
– solid state switches,
– contactless solution to replace micro switches,
– position and end-point detection, and
– rotating speed measurement.
The output turns low with the magnetic south pole on the
branded side of the package and turns high if the mag-
netic field is removed. The sensor does not respond to
the magnetic north pole on the branded side.
For correct functioning in the application, the sensor re-
quires only the magnetic south pole on the branded side
of the package.
Output Voltage
V
O
B
HYS
Magnetic Features:
– switching type: unipolar
V
OL
– typical B : 21.1 mT at room temperature
ON
0
B
OFF
B
ON
B
– typical B : 17.1 mT at room temperature
OFF
– operates with static magnetic fields and dynamic mag-
netic fields up to 20 kHz
Fig. 4–1: Definition of magnetic switching points for
the HAL114
Magnetic Characteristics at T = –40 °C to +140 °C, V = 4.5 V to 24 V,
J
DD
Typical Characteristics for V = 12 V
DD
Magnetic flux density values of switching points.
Positive flux density values refer to the magnetic south pole at the branded side of the package.
Parameter
On point B
Typ.
Off point B
Typ.
Hysteresis B
Typ.
Unit
ON
OFF
HYS
T
J
Min.
7.5
7
Max.
36
Min.
4.3
4
Max.
33.2
31.2
28.9
28.8
Min.
2.8
2.8
2.6
2.2
Max.
5
–40 °C
21.5
21.1
19.9
19.4
17.4
17.1
16.4
16.1
4.1
4
mT
mT
mT
mT
25 °C
100 °C
140 °C
34
4.5
4
6.3
6.1
31.5
31.3
3.6
3.6
3.5
3.3
4
The hysteresis is the difference between the switching points B
= B – B
ON OFF
HYS
The magnetic limits given above refer to parts in the original packaging. Mechanical stress on the hall sensitive areas
on the chip surface may generate an additional magnetic offset, which can slightly change the magnetic switching
points. Thisbehaviorisaphysicalphenomenonandnotamalfunctionofthesensor. Mechanicalstressonthehallplates
can be caused, for example, by overmoulding the plastic package or by wide range temperature changes like soldering
or operating the parts at extreme temperatures.
Please use a sensor of the HAL 5xx family if a robustness against mechanical stress is required.
10
Micronas
MICRONAS [ MICRONAS ]
