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)： 20/44頁(yè)
文件大小： 315K
代理商： HAL518E
HAL504
20
Micronas
4.4. HAL504
The HAL504 is a unipolar switching sensor (see
Fig. 4
–
13).
The output turns low with the magnetic south pole on the
branded side of the package and turns high if the mag-
netic 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.
Magnetic Features:
–
switching type: unipolar
–
medium sensitivity
–
typical B
ON
: 12 mT at room temperature
–
typical B
OFF
: 7 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 HAL504 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.
B
HYS
Output Voltage
V
O
Fig. 4
–
13:
Definition of magnetic switching points for
the HAL504
0
B
OFF
B
ON
V
OL
B
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
10.3
13
15.7
5.3
7.5
9.6
4.4
5.5
6.5
10.2
mT
25
°
C
9.5
12
14.5
5
7
9
4
5
6.5
7.2
9.5
11.8
mT
100
°
C
9
11.1
14.1
4.6
6.4
8.7
3.6
4.7
6.4
8.8
mT
140
°
C
8.7
10.6
13.9
4.4
6.1
8.6
3.4
4.5
6.4
8.4
mT
170
°
C
8.5
10.2
13.7
4.2
5.9
8.5
3.2
4.3
6.4
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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