參數(shù)資料
型號: FAN7930CM
廠商: Fairchild Semiconductor
文件頁數(shù): 2/22頁
文件大小: 1725K
描述: IC PFC CTLR CRITICAL CONF 8-SOIC
標(biāo)準包裝: 95
模式: 臨界傳導(dǎo)(CRM)
頻率 - 開關(guān): 250kHz ~ 350kHz
電流 - 啟動: 120µA
電源電壓: 13 V ~ 20 V
工作溫度: -40°C ~ 125°C
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOP
包裝: 管件
 
?2010 Fairchild Semiconductor Corporation
 
www.fairchildsemi.com
FAN7930C " Rev. 1.0.2
2
Application Diagram
AC INPUT
DC OUTPUT
line filter
PFC
ready
1
7
6
8
5
3
4
2
FAN7930C
COMP
INV
V CC
Out
GND
ZCD
CS
RDY
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 I M
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
2 .2 4 0
2 .0 5 1
V BIA S
+
-
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 I A S
V
R E F
G a te
D riv e r
R e s ta rt
T im e r
7
8
6
G N D
+
-
IN V _ o p e n
O V P
U V L O
R D Y
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
lim 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  I N A b s e n t
V
C C
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
 
 
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