参数资料
型号: FAN4800AUN
厂商: Fairchild Semiconductor
文件页数: 8/19页
文件大小: 1414K
描述: IC PWM/PFC CTLR COMBO 16-MDIP
标准包装: 1,800
模式: 平均电流
频率 - 开关: 240kHz ~ 268kHz
电流 - 启动: 30µA
电源电压: 11 V ~ 22 V
工作温度: -40°C ~ 105°C
安装类型: 通孔
封装/外壳: 16-DIP(0.300",7.62mm)
供应商设备封装: 16-MDIP
包装: 管件
 
?2011 Fairchild Semiconductor Corporation
 
www.fairchildsemi.com
FAN4800AU/CU " Rev. 1.0.1
8
 Electrical Characteristics (Continued)
Unless otherwise noted, V
DD
=15 V, T
A
= 25癈, T
A
=T
J
, R
T
=6.8 k? and C
T
=1000 pF.
Symbol
Parameter
Condition
Min.    Typ.   Max.    Unit
Voltage Error Amplifier
V
REF
 
Reference Voltage
2.45
2.50
2.55
V
A
V
 
pen-Loop Gain
(3)
 
35
42
 
dB
Gm
v
 
ransconductance
V
NONINV
=V
INV
, V
VEA
=3.75 V
50
70
90
祄ho
I
FBPFC-L
 
Maximum Source Current
V
FBPFC
=2 V, V
VEA
=1.5 V
40
50
 
I
FBPFC-H
 
Maximum Sink Current
V
FBPFC
=3 V, V
VEA
=6 V
 
-50
-40
I
BS
 
Input Bias Current
-1
 
1
V
VEA-H
 
utput High Voltage on V
VEA
 
5.8
6.0
 
V
V
VEA-L
 
utput Low Voltage on V
VEA
 
 
0.1
0.4
V
Current Error Amplifier
Gm
I
 
ransconductance
V
NONINV
=V
INV
, V
IEA
=3.75 V
70
88
105     祄ho
V
OFFSET
 
Input Offset Voltage
V
VEA
=0 V, IAC Open
-10
 
10
mV
V
IEA-H
 
utput High Voltage
6.8
7.4
7.8
V
V
IEA-L
 
utput Low Voltage
 
0.1
0.4
V
I
L
 
ource Current
V
ISENSE
= -0.6 V, V
IEA
=1.5 V
35
50
 
I
H
 
ink Current
V
ISENSE
= +0.6 V, V
IEA
=4.0 V
 
-50
-35
A
I
 
pen-Loop Gain
(3)
 
40
50
 
dB
TriFault Detect"
t
FBPFC-OPEN
 
ime to FBPFC Open
V
FBPFC
=V
PFC-UVP
 to FBPFC OPEN,
470 pF from FBPFC to GND
 
2
4
ms
V
PFC-UVP
 
PFC Feedback Under-Voltage
Protection
0.4
0.5
0.6
V
Gain Modulator
I
A
 
Input for AC Current
(3)
 
Multiplier Linear Range
0
 
65
GAIN
ain Modulator
(4)
 
I
AC
=17.67 礎, V
RMS
=1.080 V
V
FBPFC
=2.25 V
     7.94 
 
 
I
AC
=20 礎, V
RMS
=1.224 V
V
FBPFC
=2.25 V
 
7.02
 
I
AC
=25.69 礎, V
RMS
=1.585 V
V
FBPFC
=2.25 V
 
4.18
 
I
AC
=51.62 礎, V
RMS
=3.169 V
V
FBPFC
=2.25 V
 
1.05
 
I
AC
=62.23 礎, V
RMS
=3.803 V
V
FBPFC
=2.25 V
 
0.73
 
BW
Bandwidth
(3)
 
I
AC
=40 礎
 
 
2
kHz
V
O
(gm)
utput Voltage=5.7 k??
(I
SENSE
-I
OFFSET
)
I
AC
=50 礎, V
RMS
=1.224 V
V
FBPFC
=2.25 V
0.76
0.80
0.84
V
PFC I
LIMIT
 Comparator
V
PFC-ILIMIT
 
Peak Current Limit Threshold
olta  e C cle-b -C cle Limit
-1.2
-1.3
-1.4
V
V
PK
 
PFC I
LIMIT
-Gain Modulator
utput
I
AC
=17.67 礎, V
RMS
=1.08 V
V
FBPFC
=2.25 V
400
 
 
mV
 Continued on the following page& 
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