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L6566B Datasheet(PDF) 44 Page - STMicroelectronics

Part # L6566B
Description  Multi-mode controller for SMPS
PDF  51 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6566B Datasheet(HTML) 44 Page - STMicroelectronics

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Application examples and ideas
L6566B
44/51
6
Application examples and ideas
Figure 28.
Typical low-cost application schematic
IC1
L6566B
B1
C1
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
Vin
88 to
264 Vac
F1
fuse
CX1
CX2
CY1
CY2
NTC1
Lx
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
Figure 29.
Typical full-feature application schematic (QR operation)
IC1
L6566B
Vout
B1
C1
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
Vin
88 to
264 Vac
F1
fuse
CX1
CX2
CY1
CY2
NTC1
Lx
SS
C5
VREF
FMOD
C4
R6
HVS
OSC
AC_OK
R1
MODE/SC
R12
R13
R14
R15
R8
C9
R9
R10
1
2
TL431
R7
NTC2
4
7
3
5
11
6
8
9
14
13
16
10
61
15
12



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