NCP431A データシートの表示（PDF） - ON Semiconductor
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NCP431A Datasheet PDF : 16 Pages
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NCP431A, SC431A, NCP431B, NCP432B Series
0
−10
−20
Input
R1
R2 Vref
VKA
IK
100
Input
VKA = 36V
Vref = 0V
VKA
Ioff
10
−30
VKA = Vref
IK = 1 mA
−40
0
10
20
30
40
VAK, CATHODE VOLTAGE (V)
Figure 10. Change in Reference Input Voltage
versus Cathode Voltage
1
−50 −25 0
25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 11. Off−State Cathode Current versus
Ambient Temperature
10
1.0 k
Output
IK
50
GND
0.320
0.300
0.280
1
0.260
DIK = 1 mA to 100 mA
TA = 25°C
0.240
0.220
VAK = V ref
DIK = 1.0 mA to 100mA
f<1.0 kHz
1. 0k
50
Output
IK
GND
0.1
0.001
0.01
0.1
1
10
100
f, FREQUENCY (MHz)
Figure 12. Dynamic Impedance versus
Frequency
0.200
−50 −25 0
25 50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 13. Dynamic Impedance versus Ambient
Temperature
60
800
Output
50
9.0mF
IK
15k
230
700
40
600
8.25k
GND
500
30
400
VKA = V ref
20
IK = 1 mA
300 Input TA = 25°C
VKA
10
200
IK
0 IK = 100 mA to 10 mA
TA = 25°C
−10
1000
10k
100k
1M
f, FREQUENCY (Hz)
Figure 14. Open−Loop Voltage Gain versus
Frequency
100
10M
010
100
1000
10k
f, FREQUENCY (Hz)
Figure 15. Spectral Noise Density
100k
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6
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