?2010 Fairchild Semiconductor Corporation
 
www.fairchildsemi.com
FAN7930B " Rev. 1.0.3
2
 
Application Diagram
AC INPUT
DC OUTPUT
Line Filter
1
7
6
8
5
3
4
2
FAN7930B
COMP
INV
V
CC
Out
GND
ZCD
CS
OVP
Vcc
 
Figure 1.
Typical Boost PFC Application
Internal Block Diagram
V
CC
Z C D
V
TH ( Z C D )
V
C C
O U T
+
-
S
Q
R
Q
+
-
IN V
1
5
C O M P
3
C la m p
C irc u it
+
-
V
C S _ L IM
40 k W
8 p F
4
C S
0.4 5
0 .3 5
d is a b le
2 .6 7 5
2 .5
d is a b le
+
-
V
Z
+
-
V
T H ( S /S )
1 2
8 .5
V
O ( M A X )
V
C C
2 .5 V
R E F
In te rn a l
B ia s
V
B IA S
V
R E F
G a te
D riv e r
R e s ta rt
T m e r
7
8
6
G N D
+
-
IN V _ o p e n
O V P
O V P
2
re s e t
re s e t
H :o p e n
T h e rm a l
S h u td o w n
f
M A X
 
L im it
V
R E F
S ta rtu p w ith o u t
O v e rs h o o t
V
R E F
 
S ta ir
S te p
T H D
O p tim iz e d
S a w to o th
G e n e ra to r
V
IN
 A b s e n t
V
C C
2 .8 8
2 .5
d is a b le
+
-
V  O V P ,L H
V
R E F
C o n tro l R a n g e
C o m p e n s a tio n
 
Figure 2.
Functional Block Diagram
 
 
相关PDF资料
FAN7930CM IC PFC CTLR CRITICAL CONF 8-SOIC
FAN9611MX IC PFC CTLR DUAL BCM 16-SOIC
FAN9612MX IC CTLR PFC DUAL BCM 16SOICN
FL6961MY IC CTLR PFC SGL FLYBACK 8-SOIC
IR1150ISTRPBF IC PFC CONTROLLER CCM 8-SOIC
IR1152STRPBF IC PFC ONE CYCLE CONTROL 8SOIC
IR1153STRPBF IC PFC ONE CYCLE CONTROL 8SOIC
IR1155STRPBF IC PFC ONE CYCLE CONTROL 8SOIC
相关代理商/技术参数
FAN7930BMX 功能描述:功率因数校正 IC Critical Conduction Mode PFC Controller RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel
FAN7930BMX_G 制造商:Fairchild Semiconductor Corporation 功能描述:IC PFC CTLR CRITICAL CONF 8-SOIC 制造商:Fairchild Semiconductor Corporation 功能描述:Power Factor Correction - PFC Critical Conduction Mode PFC Controller 制造商:Fairchild Semiconductor Corporation 功能描述:Critical Conduction Mode PFC Controller
FAN7930C 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:The FAN7930C is an active power factor correction(PFC) controller for boost PFC applications that operate in critical conduction mode(CRM).
FAN7930CM 功能描述:功率因数校正 IC Critical Conduction Mode PFC Controller RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel
FAN7930CMX 功能描述:功率因数校正 IC Critical Conduction Mode PFC Controller RoHS:否 制造商:Fairchild Semiconductor 开关频率:300 KHz 最大功率耗散: 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Reel
FAN7930CMX_G 制造商:Fairchild Semiconductor Corporation 功能描述:IC PFC CTLR CRITICAL CONF 8-SOIC 制造商:Fairchild Semiconductor Corporation 功能描述:Power Factor Correction - PFC Critical Conduction Mode PFC Controller 制造商:Fairchild Semiconductor Corporation 功能描述:Critical Conduction Mode PFC Controller
FAN7930DM 制造商:Fairchild Semiconductor Corporation 功能描述:PFC
FAN7930DMX 制造商:Fairchild Semiconductor Corporation 功能描述:PFC