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參數(shù)資料
| 型號(hào)： | HAL300 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Differential Hall Effect Sensor IC |
| 中文描述： | 差分霍爾效應(yīng)傳感器IC |
| 文件頁數(shù)： | 7/13頁 |
| 文件大?。?/td> | 143K |
| 代理商： | HAL300 |
HAL320
7
Micronas
Magnetic Characteristics
at T
J
=
–
40
°
C to +170
°
C, V
DD
= 4.5 V to 24 V
Typical Characteristics for V
DD
= 12 V
Magnetic flux density values of switching points (Condition:
–
10 mT < B
0
< 10 mT)
Positive flux density values refer to the magnetic south pole at the branded side ot the package.
B = B
S1
–
B
S2
Parameter
–40
°
C
Typ.
25
°
C
Typ.
100
°
C
Typ.
170
°
C
Typ.
Unit
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
On point
B
ON
B >
B
ON
–
1.5
1.2
2.5
-1.5
1.2
2.5
–
2
1.2
3
–
2.5
1.1
3.5
mT
Off point
B
OFF
B <
B
OFF
–
2.5
–
0.6
1.5
–
2.5
–
0.6
1.5
–
3
–
0.5
2
–
3.5
–
0.4
2.5
mT
Hysteresis
B
HYS
=
B
ON
–
B
OFF
1
1.8
4
1
1.8
4
1
1.7
4
0.8
1.5
4
mT
Offset
B
OFFSET
=
(
B
ON
+
B
OFF
)/2
–
2
0.3
2
–
2
0.3
2
–
2.5
0.4
2.5
–
3
0.4
3
mT
In back-biased applications, sensitivity mismatch between the two Hall plates S
1
and S
2
can lead to an additional offset
of the magnetic switching points. In back-biased applications with the magnetic preinduction B
0
, this sensitivity mis-
match generates the magnetic offset
B
OFFSETbb
= |S
1
–
S
2
|/S
1
B
0
+
B
OFFSET
.
Parameter
–40
°
C
25
°
C
100
°
C
170
°
C
Unit
Sensitivity mismatch
1)
|S
1
–
S
2
|/S
1
1.5
2)
1.0
2)
1.0
2)
0.5
2)
%
1)
Mechanical stress from packaging can influence sensitivity mismatch.
2)
All values are typical values.
The magnetic switching points are checked at room temperature at a magnetic preinduction of B
0
= 150 mT.
These magnetic parameters may change under external pressure and during the lifetime of the sensor.
Parameter
25
°
C
Typ.
Unit
Min.
Max.
On point
B
ONbb
–
4.5
1.5
5.5
mT
Off point
B
OFFbb
–
5.5
–
0.3
4.5
mT
Hysteresis
B
HYS
1
1.8
4
mT
Offset
B
OFFSETbb
–
5
0.6
+5
mT
B
OFF min
B
ON max
B
HYS
Output Voltage
Fig. 7:
Definition of switching points and hysteresis
0
B
OFF
B
ON
B = B
S1
–
B
S2
V
OH
V
OL
Fig. 8:
Recommended pad size for SOT-89A and
SOT-89B; Dimensions in mm
5.0
2.0
2.0
1.0
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