FAN4800CS Fairchild Semiconductor, FAN4800CS Datasheet - Page 9

• Manufacturer Part Number: FAN4800CS
• 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

© 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
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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