TL594 查看數據表（PDF） - ON Semiconductor
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TL594 Datasheet PDF : 12 Pages
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TL594
6
RT
5
CT
4
Deadtime
Control
Oscillator
≈ 0.12V
≈ 0.7V
0.7mA
Deadtime
Comparator
−
+
−
+
PWM
Comparator
+
+
1
2
−
−
Output Control
13
DQ
Flip−
Flop
Ck Q
−
+ 4.9V
UV
Lockout −
+
3.5V
Reference
Regulator
12
Error Amp
1
3
Feedback PWM
Comparator Input
15 16
Error Amp
2
14
7
Gnd
Ref.
Output
This device contains 46 active transistors.
Figure 1. Representative Block Diagram
VCC
8
Q1
9
Q2 11
10
12
VCC
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
Figure 2. Timing Diagram
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4
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