NCV431A Просмотр технического описания (PDF) - ON Semiconductor
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NCV431A Datasheet PDF : 19 Pages
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TL431, A, B Series, NCV431A, B
0
−8.0
−16 Input
R1
−24 R2 Vref
VKA
IK
1.0 k
IK = 10 mA
TA = 25°C
100
10
1.0
0.1
VKA = 36 V
Input
Vref = 0 V VKA
Ioff
−320
10
20
30
40
VKA, CATHODE VOLTAGE (V)
Figure 8. Change in Reference Input
Voltage versus Cathode Voltage
0.01
−55
−25
0
25
50
75 100 125
TA, AMBIENT TEMPERATURE (5C)
Figure 9. Off−State Cathode Current
versus Ambient Temperature
100
1.0 k
Output
50 −
IK
10
+
GND
TA = 25°C
D IK = 1.0 mA to 100 mA
1.0
0.1
1.0 k
10 k
100 k
1.0 M
10 M
f, FREQUENCY (MHz)
Figure 10. Dynamic Impedance
versus Frequency
0.320
0.300
0.280
0.260
0.240
0.220
0.200−55
VKA = Vref
D IK = 1.0 mA to 100 mA
f ≤ 1.0 kHz
1.0 k
50 −
+
Output
IK
GND
−25 0
25
50 75 100 125
TA, AMBIENT TEMPERATURE (°C)
Figure 11. Dynamic Impedance
versus Ambient Temperature
60
Output
50
9.0 mF 15 k
IK
230
40
8.25 k
GND
30
20
10 IK = 10 mA
TA = 25°C
0
−10
1.0 k
10 k
100 k
1.0 M
10 M
f, FREQUENCY (MHz)
Figure 12. Open−Loop Voltage Gain
versus Frequency
80
60
40
VKA = Vref
IK = 10 mA
TA = 25°C
Input
Output
20
IK
010
100
1.0 k
10 k
100 k
f, FREQUENCY (Hz)
Figure 13. Spectral Noise Density
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