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L6566ATR 数据表(PDF) 44 Page - STMicroelectronics

部件名 L6566ATR
功能描述  Multi-mode controller for SMPS with PFC front-end
PDF  51 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L6566ATR 数据表(HTML) 44 Page - STMicroelectronics

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Application examples and ideas
L6566A
44/51
6
Application examples and ideas
Figure 28.
Typical low-cost application schematic
PFC Pre-regulator Output bus
IC1
L6566A
C3
Q1
R2
D2
R8
C9
D1
C7 2.2 nF Y1
R9
R10
C8A,B
T1
ZCD
GD
CS
Vcc
AC_OK
GND
VFF
COMP
D4
IC3
R4
D3
1
2
3
4
C6
R5
C2
SS
C5
VREF
MODE/SC
C4 R6
HVS
FMOD
OSC
DIS
TL431
R1
R3 470k
R7
Vout
Optional f or
QR operation
4
7
3
5
11
15
16
9
14
13
8
10
12
1
6
Optional f or
QR operation
Output capacitor of boost
PFC Pre-regulator
Figure 29.
Typical full-feature application schematic (QR operation)
4
7
3
5
11
6
8
IC1
L6566A
Vout
9
R4
C3
Q1
R2
D2
1N4148
R18
D1
C7 2.2 nF Y1
C8A,B
T1
ZCD
GD
CS
Vcc
DIS
GND
VFF
COMP
D4
IC3 PC817A
R3
D3 1N4148
3
4
C6
R5
C2
14
SS
13
C5
16
10
VREF
12
MODE/SC
C4
R6
1
HVS
OSC
AC_OK
R1
R12
R13
R14
R8
C9
R9
R10
1
2
TL431
R7
NTC2
Vcc_PFC
to Vcc pin of
PFC controller
15
C1
PFC Pre-regulator Output bus
Output capacitor of boost
PFC Pre-regulator
to mains
v oltage sensing



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