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9-28. IC9001 TL1451AC
Vref=2.5V
(16)
+
(3)
-
(4)
(5)
Error Amp2
(12)
(14)
+
(13)
-
(15)
(9)
VCC
Reference
Voltage
Error Amp1
1.4V
+2.5V
+
+
-
Vref/2
Vref
S
R
Latch
(1)
Trlangle
Oscillator
2.0V
Short Circuit
Protection
Comparator
Vref
Vref
R
U.V.L.O.
(6)
9-32
(2)
PWM Comprator1
Output1
Output2
PWM Comprator2
GND
(11)
(8)
DV-L70U
(7)
(10)
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