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LT3748 데이터 시트보기 (PDF) - Linear Technology
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LT3748
100V Isolated Flyback Controller
Linear Technology
LT3748 Datasheet PDF : 34 Pages
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LT3748
block diagram
V
IN
C
IN
R
FB
1
TC
V
IN
CURRENT
Q1
16
R
FB
Q2
TC
12
R
TC
20µA
6.04k
BOUNDARY
MODE DETECT
–
A1
+
ERROR AMP
14
R
REF
1.223V
+
g
m
–
R
REF
–
1.223V
+
A4
50µs MAX
OFF TIMER
VARIABLE
DELAY TIMER
MASTER
LATCH
S SQ
RR
T1 D
OUT
N
PS
:1
L
PRI
L
SEC
V
OUT
+
C
OUT
V
OUT
–
INTV
CC
5
C
BIAS
GATE
A4
6
NMOS
R1
1.223V
+
EN/UVLO
3
–
A3
R2
2.4µA
SS
10
C
SS
INTERNAL
REFERENCE
AND
REGULATORS
50µs MAX
ON TIMER
5µA
A2
100mV
CURRENT
LIMIT
GND
8, 9
SENSE
7
R
SENSE
V
C
11
3748 BD
R
C
C
C
For more information
www.linear.com/LT3748
3748fb
7
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