FAN4800CS Fairchild Semiconductor, FAN4800CS Datasheet - Page 8

• 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
V
Oscillator
V
PFC OVP Comparator
Low-Power Detect Comparator
V
ΔV
DD
REF
IN
ΔV
ΔV
ΔV
ΔV
V
Symbol
f
ΔV
t
V
ΔV
ΔV
OSC-RT/CT
V
V
I
I
PFC-DEAD
V
V
f
REF-MAX
RD-FBPFC
OK Comparator
I
OSC-DIS
V
I
PFC-OVP
ΔV
RANGE
RD-FBPFC
Section
DD-OVP
VEAOFF
DD-OP
DD ST
f
PFC-OVP
VREF-DT
VREF-TV
VREF-LS
DD-OP
TH-ON
DD-OVP
OSC
f
f
f
f
VREF
VREF1
VREF2
DV
RV
DT
TV
TH
Continuously Operating Voltage
Startup Current
Operating Current
Turn-on Threshold Voltage
Hysteresis
V
V
RT/CT Frequency
PFC & PWM Frequency
PWM Frequency
Voltage Stability
Temperature Stability
Total Variation (PFC & PWM)
Ramp Voltage
Discharge Current
Frequency Range
PFC Dead Time
Reference Voltage
Load Regulation of Reference
Voltage
Line Regulation of Reference
Voltage
Temperature Stability
Total Variation
Long-Term Stability
Maximum Current
Over-Voltage Protection
PFC OVP Hysteresis
VEA Voltage OFF OPFC
Voltage Level on FBPFC to
Enable OPWM During Startup
Hysteresis
DD
DD
OVP
OVP Hysteresis
Parameter
DD
=15V, T
(3)
(3)
(3)
(3)
(3)
A
= 25°C, T
(3)
A
=T
V
Open
V
R
R
11V ≦ V
-40°C ~ +105°C
Line, Temperature
Valley to Peak
V
R
I
C
V
C
-40°C ~ +105°C
Line, Load, Temp
T
V
REF
J
J
DD
DD
T=
T=
RAMP
T
REF
VDD
REF
VREF
=125°C, 0 ~ 1000HRs
, R
= 6.8kΩ, C
6.8kΩ, C
6.8kΩ, C
=V
=13V; OPFC OPWM Open
=0mA, C
=0.1µF, I
=14V, Rise/Fall Time > 20µs
=0.1µF, V
T
=0V, V
=6.8kΩ, and C
> 7.35V
TH-ON
8
DD
Conditions
-0.1V; OPFC OPWM
≦ 22V
T=
T=
REF
RT/CT
REF
T
1000pF
1000pF
VDD
= 1000pF
=0.1µF
=0mA to 3.5mA
=2.5V
=11V to 22V
T
=1000pF.
Continued on the following page…
Min.
7.35
2.70
1.15
240
120
400
200
2.0
1.3
6.5
7.4
0.2
2.3
10
27
60
58
50
5
5
Typ.
2.75
1.25
256
128
600
250
2.6
2.8
7.5
2.4
0.4
0.3
30
11
28
64
30
1
Max.
15.0
7.65
2.80
1.35
268
134
800
300
5.0
1.9
7.6
0.5
0.4
2.5
26
80
12
29
67
70
75
50
25
25
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2
2
Unit
kHz
kHz
kHz
kHz
mA
mA
mV
mV
mV
mA
mV
µA
ns
%
%
%
V
V
V
V
V
V
V
V
V
V
V
V