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UC3842B датащи(PDF) 7 Page - ON Semiconductor

номер детали UC3842B
подробное описание детали  High Performance Current Mode Controllers
PDF  21 Pages
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производитель  ONSEMI [ON Semiconductor]
домашняя страница  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

UC3842B датащи(HTML) 7 Page - ON Semiconductor

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UC3842B, UC3843B, UC2842B, UC2843B, NCV3843BV
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7
Figure 8. Error Amp Open Loop Gain and
Phase versus Frequency
Figure 9. Current Sense Input Threshold
versus Error Amp Output Voltage
Figure 10. Reference Voltage Change
versus Source Current
Figure 11. Reference Short Circuit Current
versus Temperature
−20
10 M
10
f, FREQUENCY (Hz)
Gain
Phase
VCC = 15 V
VO = 2.0 V to 4.0 V
RL = 100 K
TA = 25°C
0
30
60
90
120
150
180
100
1.0 k
10 k
100 k
1.0 M
0
20
40
60
80
100
0
VO, ERROR AMP OUTPUT VOLTAGE (V)
0
0.2
0.4
0.6
0.8
1.0
1.2
2.0
4.0
6.0
8.0
VCC = 15 V
TA = 25°C
TA = −55°C
TA = 125°C
VCC = 15 V
TA = −55°C
TA = 25°C
−16
0
Iref, REFERENCE SOURCE CURRENT (mA)
20
40
60
80
100
120
−12
−8.0
−4.0
0
−20
−24
TA = 125°C
VCC = 15 V
RL ≤ 0.1 W
50
−55
TA, AMBIENT TEMPERATURE (°C)
−25
0
25
50
75
100
125
70
90
110
Figure 12. Reference Load Regulation
Figure 13. Reference Line Regulation
2.0 ms/DIV
2.0 ms/DIV
VCC = 15 V
IO = 1.0 mA to 20 mA
TA = 25°C
VCC = 12 V to 25
TA = 25°C



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