參數(shù)資料
型號(hào)： HAL518E
廠商： Electronic Theatre Controls, Inc.
英文描述： Hall Effect Sensor Family
中文描述： 霍爾效應(yīng)傳感器系列
文件頁(yè)數(shù)： 34/44頁(yè)
文件大小： 315K
代理商： HAL518E
HAL518
34
Micronas
4.11. HAL518
The HAL518 is a unipolar switching sensor with inverted
output (see Fig. 4
–
41).
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 HAL5xx family, the HAL508 is a sensor with the
same magnetic characteristics but with a normal output
characteristic.
Magnetic Features:
–
switching type: unipolar inverted
–
medium sensitivity
–
typical B
ON
: 16 mT at room temperature
–
typical B
OFF
: 18 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 HAL518 is the optimal sensor for applications with
one magnetic polarity 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.
B
HYS
Output Voltage
0
B
ON
B
OFF
V
O
V
OL
B
Fig. 4
–
41:
Definition of magnetic switching points for
the HAL518
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
On point B
ON
Typ.
Off point B
OFF
Min.
Typ.
Hysteresis B
HYS
Min.
Typ.
Magnetic Offset
Min.
Typ.
Unit
Min.
Max.
Max.
Max.
Max.
–
40
°
C
14
16.7
20
15.5
19
22
1.5
2.3
3
17.8
mT
25
°
C
13.5
16
19
15
18
20.7
1.4
2
2.8
14
17
20
mT
100
°
C
12.5
14.8
18.7
13.9
16.6
20.4
1
1.8
2.7
15.7
mT
140
°
C
11.7
14.1
18.5
13
15.8
20.2
0.9
1.7
2.7
15
mT
170
°
C
11
13.6
18.3
12.2
15.3
20
0.8
1.7
2.6
14.4
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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