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FSCQ0565RT Datasheet(PDF) 3 Page - Fairchild Semiconductor

Part No. FSCQ0565RT
Description  Green Mode Fairchild Power Switch (FPS TM)
Download  45 Pages
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Manufacturer  FAIRCHILD [Fairchild Semiconductor]
Direct Link  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FSCQ0565RT Datasheet(HTML) 3 Page - Fairchild Semiconductor

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FSCQ-Series Rev. 1.1.2
Internal Block Diagram
Figure 2. Functional Block Diagram of FSCQ-Series
9V/15V
3
1
2
4
Auxiliary
Vref
Main Bias
S
Q
Q
R
OSC
VCC
Vref
Vref
Idelay
IFB
VSD
TSD
Vovp
Sync
Vocp
S
Q
Q
R
R
2.5R
VCC good
VCC good
(VCC = 9V)
Vcc
Drain
VFB
GND
AOCP
Gate
Driver
LEB
600ns
PWM
Soft Start
Internal
Bias
VBurst
IB
Vref
IBFB
Burst Mode
Controller
Normal Operation
Normal
Operation
Burst Switching
5
Sync
Quasi-Resonant
(QR) Switching
Controller
+
-
+
-
S
Q
Q
R
Power Off Reset (VCC = 6V)
4.6V/2.6V: Normal QR
3.0V/1.8V: Extended QR
fs
Threshold


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