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TL494CN Datasheet(PDF) 8 Page - Motorola, Inc

Part # TL494CN
Description  SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

TL494CN Datasheet(HTML) 8 Page - Motorola, Inc

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TL494
8
MOTOROLA ANALOG IC DEVICE DATA
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
1.0 mA to 250 mA
Output
Control
0
≤ VOC ≤ 0.4 V
C1
E1
C2
E2
R2
R2


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