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REV.-A
A.1.1.9 TL494CN
The TL494 is pulse width modulation control. The block diagram is shown in Figure A-17 shows
r - - - - - - - - - - - - - - - - - ( 13
Output Control
Vcc
Ref out
GND
RT
CT
Dead Time Conrol
Non Iny. Input
1
~---1;"'"
Iny. Input
Non I nv. Input
Iny. Input
Feedback
Low Voltage
Stop
Figure A-17. TL494 Block Diagram
A-22
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