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參數資料
| 型號： | HKZ121 |
| 廠商： | SIEMENS A G |
| 元件分類： | 模擬信號調理 |
| 英文描述： | Hall-Effect Vane Switch |
| 中文描述： | SPECIALTY ANALOG CIRCUIT, PSFM3 |
| 封裝： | HERMETIC SEALED, PLASTIC PACKAGE-3 |
| 文件頁數： | 4/7頁 |
| 文件大?。?/td> | 142K |
| 代理商： | HKZ121 |
HKZ 121
Characteristics
V
S
= 5 V to 18 V,
T
A
= – 30 to 130 C
Switching Point Characteristics
Definitions
In most applications, the switching point is set exactly by mechanical adjustment, thus
compensating all mechanical tolerances in the system including the scatter of the Hall-effect
vane switch. For the function of the device in operation, only the deviations of those
characteristics are important on temperature and operating voltage.
The characteristic values of the switching points are, therefore, not directly referred to the
mechanical dimensions of the vane switch, but to an electrically defined symmetry B
0
according to formula 1):
1) B
0
= (ON
left
+ OFF
left
+ ON
right
+ OFF
right
): 4
B
0
= A
0
±
0.3 mm
The definition of the operate and release points is shown the following figure.
Operate point f
ON
is obtained by subtracting the measured ON operate value from the reference
point B
0
:
2) f
ON
= ON
right
– B
0
= B
0
– ON
left
The release point f
OFF
is calculated from the difference between the appropriate ON and OFF
points:
3) f
OFF
= ON
right
– OFF
right
= OFF
left
– ON
left
f
ON 0
and f
OFF 0
are the switching points measured for the individual component under normal
conditions (
V
S
= 12 V,
T
A
= 25 C) within the characteristic device deviation.
The deviations of the operate and release points are defined according to 4):
4)
f
ON
= f
ON
– f
ON 0
f
OFF
= f
OFF
– f
OFF 0
Parameter
Symbol
min.
–
max.
–
–
0.4
0.6
10
12
1
Unit
Test Condition
Limit Values
Output saturation
voltage
V
Q sat
–
–
V
V
without vane
I
Q
= 40 mA
T
A
= – 30 to 110 C
T
A
= 110 to 130 C
with vane
without vane
I
Q
= 40 mA
Output reverse current
Supply current
Fall time
Overvoltage protection
– Supply voltage
(V
S
)
– Output
(V
Q
)
I
Q R
I
S
–
–
–
μ
A
mA
t
HL
μ
s
V
SZ
V
S0
32
32
42
42
V
V
I
S
= 16 mA
I
S
= 16 mA
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