參數資料
型號: FAN4802SNY
廠商: Fairchild Semiconductor
文件頁數: 9/24頁
文件大?。?/td> 931K
描述: IC CTLR PFC/PWM COMBO 16-PDIP
標準包裝: 30
模式: 平均電流
頻率 - 開關: 240kHz ~ 268kHz
電流 - 啟動: 30µA
電源電壓: 11 V ~ 26 V
工作溫度: -40°C ~ 105°C
安裝類型: 通孔
封裝/外殼: 16-DIP(0.300",7.62mm)
供應商設備封裝: 16-DIP
包裝: 管件
 
?2008 Fairchild Semiconductor Corporation
 
www.fairchildsemi.com
FAN4800A/C, FAN4801/02/02L " Rev. 1.0.3
9
Electrical Characteristics
V
DD
=15V, T
A
=25癈, R
T
=6.8k&, C
T
=1000pF unless noted operating specifications.
Symbol
Parameter
Conditions
Min.    Typ.   Max.   Units
V
DD
 Section
I
DD ST
 
Startup Current
V
DD
=V
TH-ON
-0.1V; OPFC OPWM Open
 
30
80
I
DD-OP
 
Operating Current
V
DD
=13V; OPFC OPWM Open
2.0
2.6
5.0
mA
V
TH-ON
 
Turn-On Threshold
Voltage
 
10
11
12
V
DV
TH
 
Hysteresis
 
1.5
 
1.9
V
V
DD-OVP
 
V
DD
OVP
 
27
28
29
V
DV
DD-OVP
     V
DD
 OVP Hysteresis
 
 
1
 
V
Oscillator
f
OSC-RT/CT
     RT/CT Frequency
R
T
=6.8k&, C
T
=1000pF
240
256
268
kHz
f
OSC
 
PFC & PWM Frequency
R
T
=6.8k&, C
T
=1000pF
60
64
67
kHz
FAN4800C,FAN4802/02L
PWM Frequency
120
128
134
f
DV
 
Voltage Stability
11V f V
DD
f 22V
 
 
2
%
f
DT
 
Temperature Stability
-40癈 ~ +105癈
 
 
2
%
f
TV
 
Total Variation
(PFC and PWM)
(3)
 
Line, Temperature
58
 
70
kHz
f
RV
 
Ramp Voltage
(3)
 
Valley to Peak
 
2.8
 
V
I
Discharge
 
Discharge Current
V
RAMP
=0V, V
RT/CT
=2.5V
6.5
 
15
mA
f
RANGE
 
Frequency Range
(3)
 
 
50
 
75
kHz
t
PFCD
 
PFC Dead Time
R
T
=6.8k&, C
T
=1000pF
400
600
800
ns
VREF
V
VREF
 
Reference Voltage
I
REF
=0mA, C
REF
=0.1礔
7.4
7.5
7.6
V
DV
VREF1
 
Load Regulation of
Reference Voltage
C
REF
=0.1礔, I
REF
=0mA to 3.5mA
V
VDD
=14V, Rise/Fall Time > 20祍
 
30
50
mV
DV
VREF2
 
Line Regulation of
Reference Voltage
C
REF
=0.1礔, V
VDD
=11V to 22V
 
 
25
mV
DV
VREF-DT
 
Temperature Stability
(3)
 
-40癈 ~ +105癈
 
0.4
0.5
%
DV
VREF-TV
 
Total Variation
(3)
 
Line, Load, Temperature
7.35
 
7.65
V
DV
VREF-LS
 
Long-Term Stability
(3)
 
T
J
=125癈, 0 ~ 1000HRs
5
 
25
mV
I
REF-MAX
.     Maximum Current
V
VREF
 > 7.35V
5
 
 
mA
I
OS
 
Output Short Circuit
(3)
 
 
 
25
 
mA
PFC OVP Comparator
V
PFC-OVP
     Over-Voltage Protection
 
2.70
2.75
2.80
V
DV
PFC-OVP
    PFC OVP Hysteresis
 
200
250
300
mV
Low-Power Detect Comparator
V
EAOFF
 
V
EA
 Voltage OFF OPFC
 
0.2
0.3
0.4
V
V
IN
 OK Comparator
V
RD-FBPFC
 
Voltage Level on FBPFC
to Enable OPWM During
Startup
 
2.3
2.4
2.5
V
DV
RD-FBPFC
    Hysteresis
 
1.15
1.25
1.35
V
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