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FAN4801NY 数据表(PDF) 10 Page - Fairchild Semiconductor

部件名 FAN4801NY
功能描述  PFC/PWM Controller Combination
Download  24 Pages
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制造商  FAIRCHILD [Fairchild Semiconductor]
网页  http://www.fairchildsemi.com
标志 FAIRCHILD - Fairchild Semiconductor

FAN4801NY 数据表(HTML) 10 Page - Fairchild Semiconductor

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© 2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN4800A/C, FAN4801/1S/2/2L • Rev. 1.0.1
10
Electrical Characteristics (Continued)
VDD=15V, TA=25°C, RT=6.8kΩ, CT=1000pF unless noted operating specifications.
Symbol
Parameter
Conditions
Min.
Typ.
Max.
Units
Voltage Error Amplifier
FBPFC
Input Voltage Range
(1)
0
6
V
Vref
Reference Voltage
at T=25°C
2.45
2.50
2.55
V
AV
Open-Loop Gain
(1)
35
42
dB
Gmv
Transconductance
VNONINV=VINV, VVEA=3.75V at T=25°C
50
70
90
µmho
IFBPFC-L
Maximum Source Current
VFBPFC=2V, VVEA=1.5V
40
50
µA
IFBPFC-H
Maximum Sink Current
VFBPFC=3V, VVEA=6V
-50
-40
µA
IBS
Input Bias Current
-1
1
µA
VVEA-H
Output High Voltage on
VVEA
5.8
6
V
VVEA-L
Output Low Voltage on
VVEA
0.1
0.4
V
Current Error Amplifier
VISENSE
Input Voltage Range
(ISENSE pin)
(1)
-1.5
0.7
V
GmI
Transconductance
VNONINV=VINV, VIEA=3.75V
78
88
100
µmho
VOFFSET
Input Offset Voltage
VVEA=0V, IAC Open
-10
10
mV
VIEA-H
Output High Voltage
6.8
7.4
8.0
V
VIEA-L
Output Low Voltage
0.1
0.4
V
IL
Source Current
VISENSE=-0.6V, VIEA=1.5V
35
50
µA
IH
Sink Current
VISENSE=+0.6V, VIEA=4.0V
-50
-35
µA
AI
Open-Loop Gain
(1)
40
50
dB
Tri-Fault Detect
tFBPFC_OPEN
Time to FBPFC Open
(1)
VFBPFC=VPFC-UVP to FBPFC OPEN,
470pF from FBPFC to GND
2
4
ms
VPFC-UVP
PFC Feedback Under-
Voltage Protection
0.4
0.5
0.6
V
Gain Modulator
IAC
Input for AC Current
(1)
Multiplier Linear Range
0
100
µA
IAC=17.67µA, VRMS=1.080V
VFBPFC=2.25V, at T=25°C
7.50
9.00
10.50
IAC=20µA, VRMS=1.224V VFBPFC=2.25V,
at T=25°C
6.30
7.00
7.70
IAC=25.69µA, VRMS=1.585V
VFBPFC=2.25V, at T=25°C
3.80
4.20
4.60
IAC=51.62µA, VRMS=3.169V
VFBPFC=2.25V, at T=25°C
0.95
1.05
1.16
GAIN
GAIN Modulator
(2)
IAC=62.23µA, VRMS=3.803V
VFBPFC=2.25V, at T=25°C
0.66
0.73
0.80
BW
Bandwidth
(1)
IAC=40µA
2
kHz
Vo(gm)
Output Voltage=5.7kΩ ×
(ISENSE-IOFFSET)
(1)
IAC=20µA, VRMS=1.224V VFBPFC=2.25V,
at T=25°C
0.74
0.82
0.90
V


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