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FSQ311L Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part # FSQ311L
Description  Green Mode Fairchild Power Switch (FPS?? for Valley Switching Converter
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FSQ311L Datasheet(HTML) 3 Page - Fairchild Semiconductor

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© 2006 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FSQ0365, FSQ0265, FSQ0165, FSQ321, FSQ311 Rev. 1.0.4
3
Typical Circuit
Figure 1. Typical Flyback Application
Internal Block Diagram
Figure 2. Functional Block Diagram
Vcc
GND
Drain
Sync
VO
PWM
Vfb
AC
IN
Vstr
FSQ0365RN Rev.00
8V/12V
Vref
S
Q
Q
R
VCC
Vref
Idelay
IFB
VSD
Vovp
Sync
VOCP
S
Q
Q
R
R
3R
VCC good
Vcc
Drain
Vfb
GND
AOCP
Gate
driver
VCC good
LEB
200ns
PWM
VBurst
4
Sync
+
-
+
-
0.7V/0.2V
2.5
μs time
delay
(1.1V)
Soft-
Start
6V
6V
0.35/0.55
+
-
OSC
Vstr
TSD
3
2
8
7
6
5
FSQ0365RN Rev.00
1


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