UCC15701/2
UCC25701/2
UCC35701/2
APPLICATION INFORMATION (cont.)
V
IN+
R1
R2
6
R3
7
C
R
10
R4
9
C
T
R
T
C
SS
14 SS
C
F
R
F
1
COUNT
R
GND
C3
12
R7
8
FB
R11
C5
R13
R12
C6
C7
R15
R14
V
OUT
VREF
GND
13
PGND
5
11
FREQ
ISET
ILIM
2
C2
R
SNS
RAMP
OUT
4
R9
SLOPE
C1
R8
UCC3570
VFF
VDD
3
V
OUT
C4
R5
R6
V
IN+
R1
R2
6
R3
7
C
T
10 CT
R4
9
VSCLAMP
ILIM
2
C2
R
NEW
C
SS
14 SS
C
F
R
F
1
COUNT
R
GND
C3
12 VREF
R7
8
FB
R11
C5
R13
R12
C6
C7
R15
R14
V
OUT
GND 13
PGND
5
11 SYNC
R
SNS
OUT
4
R9
RT
C1
R8
VFF
VDD
3
V
OUT
C4
UCC35701
R5
R6
UDG-98210
Figure 6. Single-ended forward circuit comparison between UCC3750 and UCC37501.
UNITRODE CORPORATION
7 CONTINENTAL BLVD. • MERRIMACK, NH 03054
TEL. (603) 424-2410 • FAX (603) 424-3460
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