参数资料
型号: SG6901ASZ
厂商: Fairchild Semiconductor
文件页数: 8/19页
文件大小: 714K
描述: IC PFC CTLR AVERAGE CURR 20SOIC
标准包装: 1
模式: 平均电流
频率 - 开关: 65kHz
电流 - 启动: 10µA
电源电压: 12 V ~ 20 V
工作温度: -30°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC
包装: 标准包装
其它名称: SG6901ASZDKR
 
?2008 Fairchild Semiconductor Corporation
 
www.fairchildsemi.com
SG6901A " Rev. 1.0.2
8
Electrical Characteristics
V
DD
=15V and T
A
=25癈 unless otherwise specified.
Symbol
Parameter
Conditions
Min.     Typ.    Max.    Units
PFC STAGE
Voltage Error Amplifier
V
REF
 
Reference Voltage
 
2.95
3.00
3.05
V
Av
Open-Loop Gain
 
 
60
 
dB
Z
o
 
Output Impedance
 
 
110
 
K?
OVP
PFC
     PFC Over-Voltage Protection (OVP Pin)
 
3.20
3.25
3.30
V
砄VP
PFC
 
PFC Feedback Voltage Protection
Hysteresis
 
60
90
120
mV
t
OVP-PFC
 
Debounce Time of PFC OVP
 
40
70
120
V
FBPFC-H
     Clamp-High Feedback Voltage
 
3.10
3.15
3.20
V
G
FBPFC-H
     Clamp-High Gain
 
 
0.5
 
礎/mV
V
FBPFC-L
     Clamp-Low Feedback Voltage
 
2.75
2.85
2.90
V
G
FBPFC-L
     Clamp-Low Gain
 
 
6.5
 
mA/mV
I
FBPFC-L
 
Maximum Source Current
 
1.5
2.0
 
mA
I
FBPFC-H
 
Maximum Sink Current
 
70
110
 
UVPFBPFC    PFC Feedback Under-Voltage Protection
 
0.35
0.40
0.45
V
t
UVP-FBPFC
    Debounce Time of PFC UVP
 
40
70
120
CURRENT ERROR AMPLIFIER
V
OFFSET
 
Input Offset Voltage ((-) > (+))
 
 
8
 
mV
A
I
 
Open-Loop Gain
 
 
60
 
dB
BW
Unit Gain Bandwidth
 
 
1.5
 
MHz
CMRR
Common Mode Rejection Ratio
V
CM
=0 to +1.5V
 
70
 
dB
V
OUT-HIGH
     Output High Voltage
 
3.2
 
 
V
V
OUT-LOW
     Output Low Voltage
 
 
 
0.2
V
I
MR1
, I
MR2
     Reference Current Source
R
I
=24K&
(I
MR
=20+I
RI
"0.8)
50
 
70
I
L
 
Maximum Source Current
 
3
 
 
mA
I
H
 
Maximum Sink Current
 
 
0.25
 
mA
 
Continued on the following page&
 
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