HAL 507
4.7. HAL 507
The HAL 507 is a unipolar switching sensor (see
The output turns low with the magnetic south pole on
the branded side of the package and turns high 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
requires only the magnetic south pole on the branded
side of the package.
Applications
DATA SHEET
The HAL 507 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
V
O
B
HYS
Magnetic Features:
– switching type: unipolar
– medium sensitivity
– typical B
ON
: 18.3 mT at room temperature
– typical B
OFF
: 16.2 mT at room temperature
– operates with static magnetic fields and dynamic
magnetic fields up to 10 kHz
– typical temperature coefficient of magnetic switching
points is
−1700
ppm/K
0
B
OFF
V
OL
B
ON
B
Fig. 4–25:
Definition of magnetic switching points for
the HAL 507
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
140
°C
170
°C
Min.
15.5
15.0
11.5
10.5
On point B
ON
Typ.
19.6
18.3
14.8
13.7
Max.
22.5
20.7
20.2
20.0
Off point B
OFF
Min.
14.0
13.5
10.0
9.0
Typ.
17.1
16.2
13.2
12.3
Max.
21.5
19.0
18.2
18.0
Hysteresis B
HYS
Min.
1.6
1.5
1.0
0.8
Typ.
2.5
2.1
1.6
1.4
Max.
5.2
2.7
2.6
2.4
Magnetic Offset
Min.
−
−
−
−
Typ.
18.3
17.2
14
13
Max.
−
−
−
−
mT
mT
mT
mT
Unit
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
34
Jan. 11. 2010; 000020_004ENDS
Micronas
MICRONAS [ MICRONAS ]
