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DAP015A Datasheet(PDF) 27 Page - STMicroelectronics

Part # DAP015A
Description  Advanced transition-mode PFC controller
PDF  39 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

DAP015A Datasheet(HTML) 27 Page - STMicroelectronics

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DAP005
Application information
27/39
Figure 40. 80W, wide-range-mains PFC pre-regulator with tracking boost function active
14
3
BRIDGE
4 x 1N4007
C1
0.22 µF
400V
C3
22m F
25V
FUSE
4A/250V
R3
68 k
Ω
T
11
12
DAP005
13
2
1
C6 100 nF
R6
10
Ω
MOS
STP8NM50
4
C6
56 µF
400V
Vo=200 to 385 V
Po=80W
Vac
(88V to 264V)
R7a,b
0.68
Ω
1/4 W
R9
47.5 k
Ω
+
-
C2
2.2nF
D1
STTH1L06
NTC
R5
62 k
Ω
C5
1 µF
5
C4
470 nF
6
7
10
8
9
R4
21 k
Ω
R8b
1 M
Ω
Supply Voltage
10.3 to 22V
R8a
1 M
Ω
C7
10 nF
R10b
3.3 M
Ω
R10a
3.3 M
Ω
R11
34.8 k
Ω
R1b
3.3 M
Ω
R1a
3.3 M
Ω
R2
51.1 k
Ω
R10
390 k
Ω
Figure 41. Tracking boost and voltage feedforward blocks
R1
DAP005
INV
1
Vout
TBO
6
1:1 CURRENT
MIRROR
RT
2.5V
E/A
+
-
COMP
2
3V
-
+
5
ITBO
IR1
MULT
3
R5
Rectified mains
R6
"ideal"
diode
MULTIPLIER
1/V
2
current
reference
R2
IR2
ITBO
9.5V
9.5V
VFF
CFF
RFF



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