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UC3842A Datasheet(PDF) 5 Page - ON Semiconductor

Part No. UC3842A
Description  High Performance Current Mode Controllers
Download  18 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

UC3842A Datasheet(HTML) 5 Page - ON Semiconductor

  UC3842A_05 Datasheet HTML 1Page - ON Semiconductor UC3842A_05 Datasheet HTML 2Page - ON Semiconductor UC3842A_05 Datasheet HTML 3Page - ON Semiconductor UC3842A_05 Datasheet HTML 4Page - ON Semiconductor UC3842A_05 Datasheet HTML 5Page - ON Semiconductor UC3842A_05 Datasheet HTML 6Page - ON Semiconductor UC3842A_05 Datasheet HTML 7Page - ON Semiconductor UC3842A_05 Datasheet HTML 8Page - ON Semiconductor UC3842A_05 Datasheet HTML 9Page - ON Semiconductor Next Button
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UC3842A, UC3843A, UC2842A, UC2843A
http://onsemi.com
5
Figure 2. Timing Resistor versus
Oscillator Frequency
Figure 3. Output Deadtime versus
Oscillator Frequency
Figure 4. Oscillator Discharge Current
versus Temperature
Figure 5. Maximum Output Duty Cycle
versus Timing Resistor
Figure 6. Error Amp Small Signal
Transient Response
Figure 7. Error Amp Large Signal
Transient Response
0.5
ms/DIV
VCC = 15 V
AV = −1.0
TA = 25°C
10 k
20 k
50 k
100 k
200 k
500 k
1.0 M
fOSC, OSCILLATOR FREQUENCY (Hz)
VCC = 15 V
TA = 25°C
10 k
20 k
50 k
100 k
200 k
500 k
1.0 M
fOSC, OSCILLATOR FREQUENCY (Hz)
VCC = 15 V
TA = 25°C
−55
−25
0
25
50
75
100
125
TA, AMBIENT TEMPERATURE (°C)
VCC = 15 V
VOSC = 2.0 V
RT, TIMING RESISTOR (W)
800
1.0 k
2.0 k
3.0 k
4.0 k
6.0 k
8.0 k
VCC = 15 V
CT = 3.3 nF
TA = 25°C
Idischg = 9.5 mA
Idischg = 7.2 mA
2.55 V
2.5 V
2.45 V
VCC = 15 V
AV = −1.0
TA = 25°C
0.1
ms/DIV
2.5 V
3.0 V
2.0 V
80
50
20
8.0
5.0
2.0
0.8
100
50
20
10
5.0
2.0
1.0
9.0
8.5
8.0
7.5
7.0
100
90
80
70
60
50
40


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