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參數資料
| 型號： | FAN4800 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Low Start-Up Current PFC/PWM Controller Combos |
| 中文描述： | 低啟動電流式PFC / PWM控制器功放音箱 |
| 文件頁數： | 6/19頁 |
| 文件大小： | 369K |
| 代理商： | FAN4800 |
FAN4800
6
Electrical Characteristics
(Continued)
Unless otherwise stated, these specifications apply: VCC=15V, RT=52.3K
,
CT=470pF, TA= -40
°
C to 125
°
C
.
Parameter
Symbol
GAIN MODULATOR
I
AC
=100
μ
A, V
RMS
=0, V
FB
=1V
T
A
=25
°
C
I
AC
=100
μ
A, V
RMS
=1.1V, V
FB
=1V
T
A
=25
°
C
I
AC
=150
μ
A, V
RMS
=1.8V, V
FB
=1V
T
A
=25
°
C
I
AC
=300
μ
A, V
RMS
=3.3V, V
FB
=1V
T
A
=25
°
C
Band Width
BW
Test Conditions
Min.
Typ.
Max.
Unit
Gain (Note 2)
G1
0.70
0.84
0.95
G2
1.80
2.00
2.20
G3
0.90
1.00
1.10
G4
0.25
0.32
0.40
I
AC
=100
μ
A(Note3)
-
10
-
MHz
Output Voltage =
3.5
k
* (I
SENSE
- I
OFFSET
)
Vo(gm)
I
AC
=250
μ
A, V
RMS
=1.1V, V
FB
=2V
T
A
=25
°
C
0.80
1.00
1.20
V
OSCILLATOR
Initial Accuracy
Voltage Stability
Temperature Stability
Total Variation
Ramp Valley to Peak Voltage
PFC Dead Time
CT Discharge Current
REFERENCE
Output Voltage
Line Regulation
Load Regulation
Temperature Stability
Total Variation
Long Term Stability
PFC
Minimum Duty Cycle
Maximum Duty Cycle
Fosc1
Fosc1
Fosc
2
Fosc2
Vramp
Tdead
Idis
T
A
=25
°
C
68
-
-
66
-
-
6.5
-
1
2
81
-
-
84
-
-
15
kHz
%
%
kHz
V
ns
mA
11V < V
CC
< 16.5V
-
Line, Temp
Note3
-
2.75
685
-
V
RAMP2
= 0V, V
RAMP1
= 2.5V
Vref1
Vref1
Vref2
Vref4
Vref2
Vref5
T
A
=25
°
C, I(V
REF
) = 1mA
11V < V
CC
< 16.5V
0mA < I(V
REF
) < 7mA
7.4
-
-
-
7.35
5
7.5
10
10
0.4
-
-
7.6
25
20
-
7.65
25
V
mV
mV
%
V
mV
-
Line, Load, Temp(Note3)
T
J
= 125
°
C, 1000hours(Note3)
Dmin
Dmax
Ron(low)1
Ron(low)2
Vol1
V
IEAO
> 4.0V
V
IEAO
< 1.2V
I
OUT
= -20mA at T
A
=25
°
C
I
OUT
= -100mA at T
A
=25
°
C
I
OUT
= -10mA, VCC = 9V at T
A
=25
°
C
(Note3)
I
OUT
= 20mA at T
A
=25
°
C
I
OUT
= 100mA at T
A
=25
°
C
C
L
= 1000pF(Note3)
-
-
0
-
%
%
92
-
-
95
-
-
Output Low Rdson
15
15
Output Low Voltage
-
0.4
0.8
V
Output High Rdson
Ron(high)1
Ron(high)2
Tr(pfc)
-
-
-
15
15
50
20
20
-
ns
Rise/Fall Time
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