參數(shù)資料
型號(hào): BP5222X
元件分類: 參考電壓二極管
英文描述: Low Current Operation at 250 ,Low Reverse Leakage,Low Noise Zener Diode
中文描述: 250 的低電流運(yùn)算,低反向泄露,低噪聲穩(wěn)壓二極管
文件頁(yè)數(shù): 4/8頁(yè)
文件大?。?/td> 97K
代理商: BP5222X
BP5220 / BP5221 / BP5222 /
BP5220X / BP5221X / BP5222X
Circuit operation
(1) The basic application examples are shown in Fig.2.
The externally installed parts are only the input and
output smoothing capacitors.
(2) Switching on and off the output voltage is allowed.
The output can be switched off by making pin 4 to
be open (high impedance). (See Fig.3)
(3) Fine adjustment of the output voltage is allowed.
The fine adjustment of output voltage can be
performed from pin 6 via the resistor by connecting
the output terminal (pin 2) or GND.(See application
example3)
Application example
Application example 1 : DC / DC converter with a protection circuit
Application example 2 : Output ON / OFF control
9
7
6
5
4
3
2
1
100
μ
F
470
μ
F
V
IN
V
O
BP5220X / BP5221X / BP5222X
BP5220 / BP5221 / BP5222
+
+
Fig.2
9
7
6
5
4
3
2
1
100
μ
F
470
μ
F
V
IN
SW
V
O
BBP5220 / BP5221 / BP5222
OUTPUT
OFF
+
+
Fig.3
470
μ
F
120pF
3
0
μ
F
BA10393
100
μ
F
1
0.22
8
COMP.
2.2M
+
V
IN
24V
V
O
5V
9
7
6
5
4
3
2
1
BBP5220 / BP5221 / BP5222
+
+
Fig.4
V
IN
=24V
0.2
0.4
0.6
0.8
1.0
1.2
6
5
4
3
2
1
0
OUTPUT CURRENT (A)
O
Fig.5
9
7
6
5
4
3
2
1
100
μ
F
V
IN
V
O
470
μ
F
100k
1
2SC1740
BP5220X / BP5221X / BP5222X
BP5220 / BP5221 / BP5222
ON / OFF
+
+
Fig.6
A resistor to secure the rise of output at power on. The resistance to be selected depends on the input voltage.
This is a standard application. Because the control current fluctuates with variations in circuits and components,
set the control current by adding a sufficient margin to the normal current level.
4/8
Be sure to use
fuse for safety
Be sure to use
fuse for safety
Be sure to use
fuse for safety
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