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FAN4800C Datasheet(PDF) 9 Page - Fairchild Semiconductor

No. de pieza FAN4800C
Descripción Electrónicos  PFC/PWM Controller Combination
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN4800C Datasheet(HTML) 9 Page - Fairchild Semiconductor

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© 2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.2
9
Electrical Characteristics
VDD=15V, TA=25°C, RT=6.8kΩ, CT=1000pF unless noted operating specifications.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
VDD Section
IDD ST
Startup Current
VDD=VTH-ON-0.1V; OPFC OPWM Open
30
80
µA
IDD-OP
Operating Current
VDD=13V; OPFC OPWM Open
2.0
2.6
5.0
mA
VTH-ON
Turn-On Threshold
Voltage
10
11
12
V
ΔVTH
Hysteresis
1.5
1.9
V
VDD-OVP
VDD OVP
27
28
29
V
ΔVDD-OVP
VDD OVP Hysteresis
1
V
Oscillator
fOSC-RT/CT
RT/CT Frequency
RT=6.8kΩ, CT=1000pF
240
256
268
kHz
PFC & PWM Frequency
60
64
67
fOSC
FAN4800C,FAN4802/02L
PWM Frequency
RT=6.8kΩ, CT=1000pF
120
128
134
kHz
fDV
Voltage Stability
11V ≦ VDD ≦ 22V
2
%
fDT
Temperature Stability
-40°C ~ +105°C
2
%
fTV
Total Variation
(PFC & PWM)
(3)
Line, Temperature
58
70
kHz
fRV
Ramp Voltage
(3)
Valley to Peak
2.8
V
IDischarge
Discharge Current
VRAMP=0V, VRT/CT=2.5V
6.5
15
mA
fRANGE
Frequency Range
(3)
50
75
kHz
tPFCD
PFC Dead Time
RT=6.8kΩ, CT=1000pF
400
600
800
ns
VREF
VVREF
Reference Voltage
IREF=0mA, CREF=0.1µF
7.4
7.5
7.6
V
ΔVVREF1
Load Regulation of
Reference Voltage
CREF=0.1µF, IREF=0mA to 3.5mA
VVDD=14V, Rise/Fall Time > 20µs
30
50
mV
ΔVVREF2
Line Regulation of
Reference Voltage
CREF=0.1µF, VVDD=11V to 22V
25
mV
ΔVVREF-DT(3) Temperature Stability
-40°C ~ +105°C
0.4
0.5
%
ΔVVREF-TV(3) Total Variation
Line, Load, Temp
7.35
7.65
V
ΔVVREF-LS(3)
Long-Term Stability
TJ=125°C, 0 ~ 1000HRs
5
25
mV
IREF-MAX.
Maximum Current
VVREF > 7.35V
5
mA
IOS
(3)
Output Short Circuit
25
mA
PFC OVP Comparator
VPFC-OVP
Over-Voltage Protection
2.70
2.75
2.80
V
ΔVPFC-OVP
PFC OVP Hysteresis
200
250
300
mV
Low-Power Detect Comparator
VEAOFF
VEA Voltage OFF OPFC
0.2
0.3
0.4
V
VIN OK Comparator
VRD-FBPFC
Voltage Level on FBPFC
to Enable OPWM During
Startup
2.3
2.4
2.5
V
ΔVRD-FBPFC
Hysteresis
1.15
1.25
1.35
V


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