HAL503SF-E 查看數據表（PDF） - Micronas
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HAL503SF-E Datasheet PDF : 44 Pages
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HAL504
4.4. HAL 504
The HAL 504 is a unipolar switching sensor (see
Fig. 4–13).
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.
Magnetic Features:
– switching type: unipolar
– medium sensitivity
– typical BON: 12 mT at room temperature
– typical BOFF: 7 mT at room temperature
– operates with static magnetic fields and dynamic mag-
netic fields up to 10 kHz
– typical temperature coefficient of magnetic switching
points is –1000 ppm/K
Applications
The HAL 504 is the optimal sensor for applications with
one magnetic polarity such as:
– solid state switches,
– contactless solution to replace micro switches,
– position and end-point detection, and
– rotating speed measurement.
Output Voltage
VO
BHYS
VOL
0
BOFF
BON
B
Fig. 4–13: Definition of magnetic switching points for
the HAL 504
Magnetic Characteristics at TJ = –40 °C to +170 °C, VDD = 3.8 V to 24 V,
Typical Characteristics for VDD = 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
TJ
–40 °C
25 °C
100 °C
140 °C
170 °C
On point BON
Min. Typ. Max.
10.3 13
15.7
9.5
12
14.5
9
11.1 14.1
8.7
10.6 13.9
8.5
10.2 13.7
Off point BOFF
Min. Typ. Max.
5.3
7.5
9.6
5
7
9
4.6
6.4
8.7
4.4
6.1
8.6
4.2
5.9
8.5
Hysteresis BHYS
Min. Typ. Max.
4.4
5.5
6.5
4
5
6.5
3.6
4.7
6.4
3.4
4.5
6.4
3.2
4.3
6.4
Magnetic Offset
Unit
Min. Typ. Max.
10.2
mT
7.2
9.5
11.8 mT
8.8
mT
8.4
mT
8
mT
The hysteresis is the difference between the switching points BHYS = BON – BOFF
The magnetic offset is the mean value of the switching points BOFFSET = (BON + BOFF) / 2
20
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