參數(shù)資料
型號(hào): FAN7930BM
廠商: Fairchild Semiconductor
文件頁(yè)數(shù): 2/22頁(yè)
文件大小: 1849K
描述: IC PFC CTLR CRITICAL CONF 8-SOIC
標(biāo)準(zhǔn)包裝: 95
模式: 臨界傳導(dǎo)(CRM)
頻率 - 開關(guān): 250kHz ~ 350kHz
電流 - 啟動(dòng): 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
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
 
 
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