FAN4800AU Fairchild Semiconductor, FAN4800AU Datasheet - Page 3
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FAN4800AU
Manufacturer Part Number
FAN4800AU
Description
The highly integrated FAN4800AU/CU parts are specially designed for power supplies that consist of boost PFC and PWM
Manufacturer
Fairchild Semiconductor
Datasheet
1.FAN4800CU.pdf
(20 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN4800AUM
Manufacturer:
FSC
Quantity:
20 000
Part Number:
FAN4800AUN
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 2011 Fairchild Semiconductor Corporation
FAN4800AU/CU • Rev. 1.0.0
Application Diagrams
AC
AC
R
SENSE
C
R
RAMP
RAMP
R
SENSE
R
C
T
T
R
C
R
C
Filter
R
220nF
47nF
IEA1
IEA
T
T
FBPWM
C
R
R
SS
C
FBPWM
R
Filter
220nF
47nF
IEA1
IEA
C
C
200KΩ
FBPWM
36KΩ
C
RAMP
VIN
C
R
Filter
SS
FBPWM
C
IEA2
200KΩ
C
36KΩ
C
Vin
1MΩ
1MΩ
Filter
C
VRMS
ISENSE
RT/CT
SS
RAMP
IEA
VREF
FBPWM
IEA2
1MΩ
1MΩ
3MΩ
3MΩ
VRMS
ISENSE
IEA
VREF
RAMP
RT/CT
SS
FBPWM
IAC
R
3MΩ
3MΩ
RAMP
OPFC
IAC
10Ω
FBPFC
OPWM
L
ILIMIT
OPFC
10KΩ
Figure 2.
Figure 3.
Boost
GND
VDD
VEA
10Ω
FBPFC
OPWM
L
ILIMIT
10KΩ
Boost
GND
VDD
VEA
C
R
VEA1
VEA
C
C
V
R
Q1
C
VDD
DD
VEA1
VEA
Filter
D
3
C
Boost
C
V
C
C
Q1
C
VDD
VEA2
DD
FBPFC
Bulk
Filter
Current Mode
Voltage Mode
R
D
Filter
C
Boost
C
C
VEA2
FBPFC
Bulk
R
Filter
10Ω
10Ω
10KΩ
10KΩ
R
R
R
FBPFC1
FBPFC2
FBPFC3
10Ω
10Ω
R
ILIMIT
10KΩ
10KΩ
D
R
R
R
F2
FBPFC1
FBPFC2
FBPFC3
R
ILIMIT
Q2
Q3
D
F2
L
D
FBPWM
Q2
Q3
m
F1
L
D
FBPWM
1nF
m
F1
1nF
R
C
D
FB
R
FB4
R
C
D
FB
R
FB4
R
R
FB3
FB1
12V
R
FB2
www.fairchildsemi.com
R
R
FB3
FB1
12V
R
FB2
12V
5V
5V
12V
5V
5V