lt3799 Linear Technology Corporation, lt3799 Datasheet - Page 8

• Manufacturer Part Number: lt3799
• Description: Lt3799 - Offline Isolated Flyback Led Controller With Active Pfc
• Manufacturer: Linear Technology Corporation

LT3799
BLOCK DIAGRAM
8
C6
C4
6
5
7
8
1
2
3
4
CT
COMP
COMP
CTRL1
CTRL2
CTRL3
V
FAULT
REF
+
–
DETECTION
FAULT
+
+
+
–
1M
A5
R4
R5
S&H
A3
+
–
600mV
+
–
9
FB
A2
SW1
A6
10
DCM
SHOT
ONE
R10
C1
MULTIPLIER
16
A7
V
IN_SENSE
L1C
COMPARATOR
CURRENT
–
+
A1
LOW OUTPUT
OSCILLATOR
D2
CURRENT
1.22V
S
S
MASTER
LATCH
R
+
–
Q
A8
A4
C3
11
DRIVER
V
IN
R3
R7
R8
R1
R2
INTV
SENSE
GATE
GND
3799 BD
CC
13
14
15
17
C2
V
IN
L1A
C5
M1
T1
N:1
R6
L1B
D1
C7
V
V
3799p
OUT
OUT
+
–