NCP1653A ON Semiconductor, NCP1653A Datasheet - Page 2

• Manufacturer Part Number: NCP1653A
• Description: Continuous Conduction Mode PFC Controller
• Manufacturer: ON Semiconductor

C
M
I
FB / SD
M
Gnd
V
V
CC
CC
AC
Input
V
R
M
M
1
8
5
6
18 V
9 V
9 V
13.25 V
C
/ 8.7 V
ramp
I
ch
Filter
EMI
Turn on
UVLO
Current
+
−
Mirror
0
&
I
FB
1
Reference Block
Internal Bias
+
67 or 100 kHz clock
V
CC
V
4% I
Shutdown / UVP
I
ref
Regulation Block
in
V
V
(120 / 150 °C)
(I
(I
Figure 2. Functional Block Diagram
96%
ramp
reg
FB
FB
Overvoltage
Shutdown
ref
+
Thermal
−
Protection
> 107% I
< 8% I
Hysteresis
I
PFC
Modulation
NCP1653, NCP1653A
ref
V
in
I
ref
http://onsemi.com
ref
)
ref
C
I
filter
R
FB
)
CS
L
0
2
I
I
L
L
1
V
M
(I
(I
OR
Overcurrent
=
S
Protection
S
300 k
Overpower
Limitation
I
> 200 mA)
vac
R
2 I
M
> 3 nA
control
I
S
1
I
R
S
vac
2
I
R
control
)
Q
0
1
= constant
C
bulk
=
Current
Mirror
V
V
CC
control
R
Output
Driver
1
x
Current
9 V
12 k
Mirror
on
off
9 V
9 V
Output Voltage (V
2
3
4
7
R
CS
Drv
In
V
FB
control
C
I
S
control
C
I
R
out
vac
vac
vac
)
R
S