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NCP1653 датащи(PDF) 2 Page - ON Semiconductor

номер детали NCP1653
подробное описание детали  PFC Controller
PDF  21 Pages
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производитель  ONSEMI [ON Semiconductor]
домашняя страница  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

NCP1653 датащи(HTML) 2 Page - ON Semiconductor

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NCP1653, NCP1653A
www.onsemi.com
2
Figure 2. Functional Block Diagram
0
1
300 k
−
+
+
−
OR
1
8
4
5
2
3
7
6
9 V
0
1
1
0
x
+
9 V
AC
Input
EMI
Filter
Cfilter
RCS
Cbulk
off
on
RFB
Output Voltage (Vout)
L
IFB
Current
Mirror
Overvoltage
Protection
(IFB > 107% Iref)
Thermal
Shutdown
(120 / 150 °C)
Current
Mirror
FB
ref
reg
V
I
I
96%
Regulation Block
ref
I
VCC
Internal Bias
Reference Block
18 V
VCC
VCC
UVLO
FB / SD
9 V
Current
Mirror
VCC
Output
Driver
S
RQ
PFC
Modulation
Cramp
Gnd
Ccontrol
Vcontrol
9 V
Overcurrent
Protection
(IS > 200 mA)
IL
IL
Vin
Iin
VM
IM
13.25 V
/ 8.7 V
Turn on
Rvac
Ivac
Cvac
In
12 k
9 V
CM
RM
IS
RS
CS
Drv
67 or 100 kHz clock
Vramp
Vref
Ich
Shutdown / UVP
(IFB < 8% Iref)
4% Iref Hysteresis
Overpower
Limitation
(IS Ivac > 3 nA2)
Icontrol =
Vcontrol
R1
VM =
RMISIvac
2 Icontrol
&
R1 = constant



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