UC2845AD1 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
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UC2845AD1 Datasheet PDF : 16 Pages
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UC384XA - UC284XA
Figure 23. Error Amplifier Compensation
From VO
Ri
Rd Cf
+
2.5V
1mA
+
2
Rf
-
EA
2R
R
1
5
Error Amp compensation circuit for stabilizing any current-mode topology except
for boost and flyback converters operating with continuous inductor current.
From VO
RP
Ri
CP
Rd Cf
+
2.5V
1mA
+
2
Rf
-
EA
2R
R
1
5
D95IN351
Error Amp compensation circuit for stabilizing current-mode boost and flyback
topologies operating with continuous inductor current.
Figure 24. External Clock Synchronization.
EXTERNAL
SYNC INPUT 0.01µF
VREF
8
RT
4
CT
2
47Ω
1
R
R
+
+
-
EA
BIAS
OSC
2R
R
5
The diode clamp is required if the Sync amplitude is large enough to cause
the bottom side of CT to go more than 300mV below ground
D95IN352
10/16
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