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TL494CD 数据表(PDF) 4 Page - ON Semiconductor

部件名 TL494CD
功能描述  SWITCHMODE PULSE WIDTH MODULATION CONTROL CIRCUIT
PDF  12 Pages
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制造商  ONSEMI [ON Semiconductor]
网页  http://www.onsemi.com
标志 ONSEMI - ON Semiconductor

TL494CD 数据表(HTML) 4 Page - ON Semiconductor

  TL494CD Datasheet HTML 1Page - ON Semiconductor TL494CD Datasheet HTML 2Page - ON Semiconductor TL494CD Datasheet HTML 3Page - ON Semiconductor TL494CD Datasheet HTML 4Page - ON Semiconductor TL494CD Datasheet HTML 5Page - ON Semiconductor TL494CD Datasheet HTML 6Page - ON Semiconductor TL494CD Datasheet HTML 7Page - ON Semiconductor TL494CD Datasheet HTML 8Page - ON Semiconductor TL494CD Datasheet HTML 9Page - ON Semiconductor Next Button
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TL494, NCV494
http://onsemi.com
4
Figure 1. Representative Block Diagram
Figure 2. Timing Diagram
6
RT
CT
5
4
Deadtime
Control
Oscillator
0.12V
0.7V
0.7mA
+
1
−
−
+
−
+
+
2
−
D
Q
Ck
−
+
+
−
3.5V
4.9V
13
Reference
Regulator
Q1
Q2
8
9
11
10
12
VCC
VCC
12
3
15
16
14
7
Error Amp
1
Feedback PWM
Comparator Input
Ref.
Output
Gnd
UV
Lockout
Flip−
Flop
Output Control
Error Amp
2
Deadtime
Comparator
PWM
Comparator
Q
Capacitor CT
Feedback/PWM Comp.
Deadtime Control
Flip−Flop
Clock Input
Flip−Flop
Q
Flip−Flop
Q
Output Q1
Emitter
Output Q2
Emitter
Output
Control
This device contains 46 active transistors.



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