HAL571 Datasheet, PDF (17/20 Pages) List of Unclassifed Manufacturers – Two-Wire Hall Effect Sensor Family

ADVANCE INFORMATION
HAL584
4.6. HAL 584
The HAL 584 is a medium sensitive unipolar switching
sensor with an inverted output (see Fig. 4–6).
The sensor turns to low current consumption with the
magnetic south pole on the branded side of the package
and turns to high current consumption if the magnetic
field is removed. It 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.
In this two-wire sensor family, the HAL 574 is a sensor
with the same magnetic characteristics but with a normal
output characteristic.
Magnetic Features:
– switching type: unipolar inverted
– medium sensitivity
– typical B_ON: 7.2 mT at room temperature
– typical B_OFF: 9.2 mT at room temperature
– typical temperature coefficient of magnetic switching
points is 0 ppm/K
– operates with static magnetic fields and dynamic mag-
netic fields up to 10 kHz
Applications
The HAL 584 is designed for applications with one mag-
netic polarity and weak magnetic amplitudes at the sen-
sor position where an inverted output signal is required
such as:
– applications with large airgap or weak magnets,
– solid state switches,
– contactless solutions to replace micro switches,
– position and end point detection, and
– rotating speed measurement.
Current consumption
I_DDhigh
B_HYS
I_DDlow
0
B_ON
B_OFF
B
Fig. 4–6: Definition of magnetic switching points for
the HAL 584
Magnetic Characteristics at T_J = –40 °C to +140 °C, V_DD = 3.75 V to 24 V,
Typical Characteristics for V_DD = 12 V
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
T_J
–40 °C
25 °C
100 °C
140 °C
On point B_ON
Min. Typ. Max.
5
7.2
11.5
5
7.2
11.5
5
7.2
11.5
tbd
–
tbd
Off point B_OFF
Min. Typ. Max.
5.5
9.2
12
5.5
9.2
12
5.5
9.2
12
tbd
–
tbd
Hysteresis B_HYS
Min. Typ. Max.
0.5
2
3
0.5
2
3
0.5
2
3
tbd
–
tbd
Magnetic Offset
Unit
Min. Typ. Max.
8.2
mT
8.2
mT
8.2
mT
tbd
mT
The hysteresis is the difference between the switching points B_HYS = B_OFF – B_ON
The magnetic offset is the mean value of the switching points B_OFFSET = (B_ON + B_OFF) / 2
Micronas
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