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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： | 7/19頁 |
| 文件大小： | 369K |
| 代理商： | FAN4800 |
FAN4800
7
Electrical Characteristics
(Continued)
Unless otherwise stated, these specifications apply: VCC=+15V, RT=52.3K
,
CT=470pF, TA= -40
°
C to 125
°
C
.
Parameter
Symbol
PWM
Duty Cycle Range
D
Ron(low)3
I
OUT
= -20mA at T
A
=25
°
C
Ron(low)4
I
OUT
= -100mA at T
A
=25
°
C
I
OUT
= -10mA, VCC = 9V
T
A
=25
°
C
Ron(high)3
I
OUT
= 20mA at T
A
=25
°
C
Ron(high)4
I
OUT
= 100mA at T
A
=25
°
C
Rise/Fall Time
Tr(pwm)
C
L
= 1000pF(Note3)
PWM Comparator Level Shift
PWM(ls)
SUPPLY
Start-up Current
Ist
V
CC
= 12V, C
L
= 0pF
Operating Current
Iop
14V, C
L
= 0pF
Under Voltage Lockout
Threshold
Under Voltage Lockout
Hysteresis
Note1:
Includes all bias currents to other circuits connected to the V
FB
pin.
Note2:
Gain = K
×
5.375V; K = (I
SENSE
-I
OFFSET
)
×
[ I
AC
×
(VEAO-0.625) ]
-1
; VEAO
MAX
= 6V
Note3:
This parameter, although guaranteed by design, is not 100% production tested.
Test Conditions
Min.
Typ.
Max.
Unit
-
0-42
-
-
0-47
-
-
0-49
15
15
%
Output Low Rdson
Output Low Voltage
Vol2
-
0.4
0.8
V
Output High Rdson
-
-
-
15
15
50
0.95
20
20
-
1.2
ns
V
-
0.8
-
-
100
2.5
200
7.0
μ
A
mA
Vth(start)
-
12.74
13
13.26
V
Vth(hys)
-
2.80
3.0
3.20
V
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