FAN4800AU Fairchild Semiconductor, FAN4800AU Datasheet - Page 7
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
Electrical Characteristics
Unless otherwise noted, V
V
Oscillator
V
PFC OVP Comparator
Low-Power Detect Comparator
V
△V
△V
△V
DD
VREF
△V
△V
△V
Symbol
f
I
IN
△V
△V
V
t
V
VREF-MAX
OSC-RT/CT
V
V
I
PFC-DEAD
V
f
△V
I
OSC-DIS
V
RD-FBPFC
I
PFC-OVP
RANGE
OK Comparator
Section
DD-OVP
VEAOFF
DD-OP
DD-ST
f
TH-ON
RD-FBPFC
PFC-OVP
OSC
f
f
f
VREF-DT
VREF-TV
VREF-LS
f
VREF
DD-OVP
DV
RV
DT
TV
VREF1
VREF2
TH
.
Startup Current
Operating Current
Turn-on Threshold Voltage
Hysteresis
V
V
RT/CT Frequency
PFC & PWM Frequency
FAN4800CU 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
11V ≦ V
-40°C ~ +105°C
Line, Temperature
Valley to Peak
V
R
I
C
V
C
-40°C ~ +105°C
Line, Load, Temperature
T
V
VREF
J
DD
DD
RAMP
DD
VREF
T
T
VREF
VREF
J
=125°C, 0 ~ 1000 Hours
, R
=6.8kΩ, C
=6.8kΩ, C
=V
=13V, OPFC OPWM Open
=14V, Rise/Fall Time > 20µs
=0mA, C
T
=0.1µF, I
=0.1µF, V
=0V, V
> 7.35V
=6.8kΩ, and C
TH-ON
DD
7
-0.1V, OPFC OPWM
Condition
≦ 22V
T
RT/CT
T
VREF
=1000pF
=1000pF
VREF
DD
=2.5V
=0.1µF
=11V to 22V
=0mA to 3.5mA
T
=1000pF.
Continued on the following page…
Min.
7.35
2.70
240
120
400
200
2.0
1.3
6.5
7.4
0.2
2.3
1.0
10
27
60
58
50
5
5
Typ.
2.75
256
128
600
250
2.6
2.8
7.5
0.4
0.3
2.4
1.1
30
11
28
64
30
1
Max.
15.0
7.65
2.80
268
134
800
300
5.0
1.9
7.6
0.5
0.4
2.5
1.2
80
12
29
67
70
75
50
25
25
2
2
www.fairchildsemi.com
Unit
kHz
kHz
kHz
kHz
mA
mV
mV
mA
mV
mA
mV
µA
ns
%
%
%
V
V
V
V
V
V
V
V
V
V
V