HAL506 Datasheet, PDF (30/44 Pages) List of Unclassifed Manufacturers – Hall Effect Sensor Family

HAL516
4.9. HAL 516
The HAL 516 is the most sensitive unipolar switching
sensor with an inverted output of this family (see
Fig. 4–33).
The output turns high with the magnetic south 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 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 the HAL 5xx family, the HAL 506 is a sensor with the
same magnetic characteristics but with a normal output
characteristic.
Magnetic Features:
– switching type: unipolar inverted
– high sensitivity
– typical B_ON: 3.5 mT at room temperature
– typical B_OFF: 5.5 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 516 is the optimal sensor for all applications
with one magnetic polarity and weak magnetic ampli-
tude at the sensor position where an inverted output sig-
nal is required such as:
– applications with large airgap or weak magnets,
– solid state switches,
– contactless solution to replace micro switches,
– position and end point detection, and
– rotating speed measurement.
Output Voltage
V_O
B_HYS
V_OL
0
B_ON
B_OFF
B
Fig. 4–33: Definition of magnetic switching points for
the HAL 516
Magnetic Characteristics at T_J = –40 °C to +170 °C, V_DD = 3.8 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
170 °C
On point B_ON
Min. Typ. Max.
2.1
3.8
5.4
2
3.5
5
1.9
3.3
4.9
1.8
3.1
5.1
1.7
3
5.2
Off point B_OFF
Min. Typ. Max.
4.3
5.9
7.7
3.8
5.5
7.2
3.6
5.1
7
3.4
4.8
6.9
3.2
4.6
6.8
Hysteresis B_HYS
Min. Typ. Max.
1.6
2.1
2.8
1.5
2
2.7
1.2
1.8
2.6
1
1.7
2.6
0.9
1.6
2.6
Magnetic Offset
Unit
Min. Typ. Max.
4.8
mT
3.8
4.5
6.2 mT
4.2
mT
4
mT
3.8
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
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