UC384XA - UC284XA
Figure 23. Error Amplifier Compensation
+
From VO
Ri
2.5V
1mA
2R
+
-
2
1
EA
R
Rd Cf
Rf
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
2.5V
1mA
2R
+
-
Ri
2
1
EA
R
CP
Rd
Cf
Rf
5
D95IN351
Error Amp compensation circuit for stabilizing current-mode boost and flyback
topologies operating with continuous inductor current.
Figure 24. External Clock Synchronization.
VREF
8
4
R
R
BIAS
OSC
RT
CT
+
EXTERNAL
SYNC INPUT
2R
0.01µF
+
-
2
1
EA
47Ω
R
5
D95IN352
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
10/16
STMICROELECTRONICS [ ST ]
