FAN4801S Fairchild Semiconductor, FAN4801S Datasheet - Page 9
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FAN4801S
Manufacturer Part Number
FAN4801S
Description
The highly integrated FAN4800AS/CS/01S/02S parts are specially designed for power supplies that consist of boost PFC and PWM
Manufacturer
Fairchild Semiconductor
Datasheet
1.FAN4800AS.pdf
(19 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN4801SMY
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 2010 Fairchild Semiconductor Corporation
FAN4800AS/CS/01S/02S • Rev. 1.0.1
Electrical Characteristics
Unless otherwise noted, V
Voltage Error Amplifier
Current Error Amplifier
TriFault Detect™
Gain Modulator
PFC I
t
FBPFC_OPEN
V
Symbol
V
V
I
V
I
PFC-ILIMIT
V
FBPFC-H
V
FBPFC-L
V
GAIN
V
PFC-UVP
ΔV
V
Gm
OFFSET
O
Gm
A
BW
VEA-H
VEA-L
I
I
A
IEA-H
IEA-L
(gm)
REF
I
I
AC
LIMIT
BS
I
H
L
(3)
V
PK
v
I
Comparator
Reference Voltage
Open-Loop Gain
Transconductance
Maximum Source Current
Maximum Sink Current
Input Bias Current
Output High Voltage on V
Output Low Voltage on V
Transconductance
Input Offset Voltage
Output High Voltage
Output Low Voltage
Source Current
Sink Current
Open-Loop Gain
Time to FBPFC Open
PFC Feedback Under-Voltage
Protection
Input for AC Current
GAIN Modulator
Bandwidth
Output Voltage=5.7kΩ × (I
I
Peak Current Limit Threshold
Voltage, Cycle-by-Cycle Limit
PFC I
OFFSET
LIMIT
)
-Gain Modulator Output
Parameter
(3)
DD
=15V, T
(4)
(3)
(3)
A
(Continued)
= 25°C, T
VEA
VEA
SENSE
-
A
=T
V
V
V
V
V
V
V
V
470pF from FBPFC to GND
Multiplier Linear Range
I
V
I
V
I
V
I
V
I
V
I
I
V
I
V
AC=
AC=
AC=
AC=
AC=
AC=
AC=
AC=
J
NONINV
FBPFC
FBPFC
NONINV
VEA
ISENSE
ISENSE
FBPFC
FBPFC=
FBPFC
FBPFC=
FBPFC=
FBPFC
FBPFC=
FBPFC=
, R
17.67µA, V
20.00µA, V
25.69µA, V
51.62µA, V
62.23µA, V
40µA
20µA, V
17.67µA, V
=0V, IAC Open
T
=6.8kΩ, and C
=2V, V
=3V, V
=V
=2.25V
=2.25V
=-0.6V, V
=+0.6V, V
=V
=V
2.25V
2.25V
2.25V
2.25V
2.25V
9
PFC-UVP
INV
INV
Conditions
RMS=
, V
, V
VEA
VEA
RMS=
RMS=
RMS=
RMS=
RMS=
RMS=
VEA
IEA
1.224V
=1.5V
=6V
IEA
to FBPFC OPEN,
IEA
=3.75V
=3.75V
=1.5V
1.080V
1.224V
1.585V
3.169V
3.803V
1.08V
=4.0V
T
=1000pF.
Continued on the following page…
7.500
6.367
3.801
0.950
0.660
0.710
Min.
-1.35
2.45
200
5.8
-10
6.8
0.4
35
50
40
78
35
40
-1
0
9.000 10.500
7.004
4.182
1.045
0.726
0.798
Typ.
-1.20
2.50
-50
-50
6.0
0.1
7.4
0.1
0.5
42
70
50
88
50
50
2
2
Max.
7.704
4.600
1.149
0.798
0.885
-1.05
2.55
100
100
-40
-35
0.4
8.0
0.4
0.6
90
10
www.fairchildsemi.com
1
4
umho
umho
Unit
kHz
mV
mV
µA
ms
µA
dB
µA
µA
µA
µA
dB
V
V
V
V
V
V
V
V