FSQ0365 FAIRCHILD [Fairchild Semiconductor], FSQ0365 Datasheet - Page 3

• Manufacturer Part Number: FSQ0365
• Manufacturer: FAIRCHILD [Fairchild Semiconductor]

FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4
© 2006 Fairchild Semiconductor Corporation
Typical Circuit
Internal Block Diagram
Vfb
3
V
V
Sync
SD
ovp
V
6V
6V
CC
I
delay
V
ref
I
FB
0.35/0.55
V
Burst
AC
IN
3R
+
-
R
Sync
0.7V/0.2V
2.5μs time
Sync
delay
Soft-
Start
Figure 1. Typical Flyback Application
4
Figure 2. Functional Block Diagram
Vfb
TSD
PWM
PWM
+
-
V
Vcc
CC
good
Vstr
200ns
GND
LEB
Drain
OSC
3
S
R
S
R
Q
Q
Q
Q
FSQ0365RN Rev.00
Vstr
5
V
ref
V
CC
AOCP
good
V
O
driver
Gate
+
-
(1.1V)
V
Vcc
8V/12V
OCP
2
FSQ0365RN Rev.00
6
Drain
7
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8
1
GND