HAL506 Datasheet, PDF (36/44 Pages) List of Unclassifed Manufacturers – Hall Effect Sensor Family

HAL519
4.12. HAL 519
The HAL 519 is a very sensitive unipolar switching sen-
sor with an inverted output sensitive only to the magnetic
north polarity. (see Fig. 4–45).
The output turns high with the magnetic north pole on the
branded side of the package and turns low if the magnet-
ic field is removed. The sensor does not respond to the
magnetic south pole on the branded side, the output re-
mains low. For correct functioning in the application, the
sensor requires only the magnetic north pole on the
branded side of the package.
Magnetic Features:
– switching type: unipolar inverted, north sensitive
– 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 519 is the optimal sensor for all applications
with the north magnetic polarity and weak magnetic am-
plitude at the sensor position where an inverted output
signal is required such as:
– 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
B_OFF
B_ON
0B
Fig. 4–45: Definition of magnetic switching points for
the HAL 519
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.
–5.4 –3.8 –2.1
–5
–3.6 –2
–4.9 –3.3 –1.9
–5.1 –3.1 –1.7
–5.2 –3
–1.5
Off point B_OFF
Min. Typ. Max.
–7.7 –5.9 –4.3
–7.2 –5.5 –3.8
–6.7 –5
–3.4
–6.8 –4.8 –3.1
–6.8 –4.6 –2.8
Hysteresis B_HYS
Min. Typ. Max.
1.6
2.1
2.8
1.5
1.9
2.7
1.2
1.7
2.6
1
1.7
2.6
0.9
1.6
2.6
Magnetic Offset
Unit
Min. Typ. Max.
–4.8
mT
–6.2 –4.5 –3.8 mT
–4.2
mT
–4
mT
–3.8
mT
The hysteresis is the difference between the switching points B_HYS = B_ON – B_OFF
The magnetic offset is the mean value of the switching points B_OFFSET = (B_ON + B_OFF) / 2
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Micronas