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TL494BDG Datasheet(PDF) 9 Page - ON Semiconductor

Part No. TL494BDG
Description  Modulation Control Circuit
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

TL494BDG Datasheet(HTML) 9 Page - ON Semiconductor

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TL494, NCV494
http://onsemi.com
9
Figure 14. Error−Amplifier Sensing Techniques
Figure 15. Deadtime Control Circuit
Figure 16. Soft−Start Circuit
Figure 17. Output Connections for Single−Ended and Push−Pull Configurations
VO
To Output
Voltage of
System
R1
1
2
Vref
R2
+
Error
Amp
Positive Output Voltage
VO = Vref
1 +
R1
3
+
1
2
Vref
R2
VO
R1
Negative Output Voltage
To Output
Voltage of
System
Error
Amp
VO = Vref
R1
R1
R2
Output
Control
Output
Q
RT
CT
DT
Vref
4
5
6
0.001
30k
R1
R2
Max. % on Time, each output
≈ 45 −
80
1 +
Output
Q
Vref
4
DT
CS
RS
Output
Control
Single−Ended
Q1
Q2
QC
1.0 mA to
500 mA
QE
2.4 V
≤ VOC ≤ Vref
Push−Pull
Q1
Q2
C1
E1
C2
E2
1.0 mA to
250 mA
Output
Control
0
≤ VOC ≤ 0.4 V
C1
E1
C2
E2
R2
R2
1.0 mA to
250 mA


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