HAL 519
DATA SHEET
4.11. HAL 519
Applications
The HAL 519 is a very sensitive unipolar switching
sensor with an inverted output sensitive only to the
magnetic north polarity (see Fig. 4–41).
The HAL 519 is the optimal sensor for all applications
with the north magnetic polarity and weak magnetic
amplitude at the sensor position where an inverted
output signal is required such as:
The output turns high with the magnetic north pole on
the branded side of the package and turns low if the
magnetic field is removed. The sensor does not
respond to the magnetic south pole on the branded
side, the output remains low. For correct functioning in
the application, the sensor requires only the magnetic
north pole on the branded side of the package.
– solid-state switches,
– contactless solution to replace microswitches,
– position and end-point detection, and
– rotating speed measurement.
Output Voltage
Magnetic Features:
VO
– switching type: unipolar inverted, north sensitive
– high sensitivity
BHYS
– typical BON: −3.5 mT at room temperature
– typical BOFF: −5.5 mT at room temperature
VOL
– operates with static magnetic fields and dynamic
magnetic fields up to 10 kHz
0
B
BOFF
BON
– typical temperature coefficient of magnetic switching
Fig. 4–41: Definition of magnetic switching points for
points is −1000 ppm/K
the HAL 519
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
On point B
Typ.
Off point B
Typ.
Hysteresis B
HYS
Magnetic Offset
Unit
ON
OFF
T
Min.
-5.4
-5
Max.
-2.1
-2
Min.
-7.7
-7.2
-6.8
-6.8
Max.
Min.
Typ.
2.1
1.9
1.7
1.6
Max.
Min.
Typ.
-4.8
-4.5
-4
Max.
J
−40 °C
25 °C
-3.8
-5.9
-4.3
-3.8
-3.1
-2.8
1.6
1.5
1
2.8
2.7
2.6
2.6
−
−
mT
mT
mT
mT
-3.6
-5.5
-6.2
−
-3.8
−
140 °C
170 °C
-5.1
-5.2
-3.1
-1.7
-1.5
-4.8
-3
-4.6
0.9
−
-3.8
−
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
42
Jan. 11. 2010; DSH000020_004EN
Micronas
MICRONAS [ MICRONAS ]
