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CM6503IP Datasheet(PDF) 2 Page - List of Unclassifed Manufacturers

No. de pieza CM6503IP
Descripción Electrónicos  8-PIN SINGLE PFC CONTROLLER WITH 50% PWM CLOCK SIGNAL
PDF  13 Pages
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CM6503IP Datasheet(HTML) 2 Page - List of Unclassifed Manufacturers

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CM6503/4
8-PIN SINGLE PFC CONTROLLER WITH 50% PWM CLOCK SIGNAL
2002/07/16
Preliminary Rev. 0.2
Champion Microelectronic Corporation
Page 2
PIN DESCRIPTION
Operating Voltage
Pin No.
Symbol
Description
Min.
Typ.
Max.
Unit
1
PFC OUT
PFC driver output
0
VCC
V
2
GND
Ground
3
ISENSE
Current sense input to the PFC current limit comparator
-5
0.7
V
4
VEAO
PFC transconductance voltage error amplifier output
0
6
V
5
VFB
PFC transconductance voltage error amplifier input
0
2.5
3
V
6
IAC
Feedforward input to do slope compensation and to start up
the system
0
1
V
7
VCC
Positive supply
10
15
23
V
8
PWM CLK
BLOCK DIAGRAM
0.5V
PWMCLK
5
VFB
2.75V
VREFOK
RAMP
-1V
S
R
Q
Q
R
fpfc=
VCC
PWM CLK
PFCCMP
+
-
.
67KHz
R1C
4
VEAO
VCC OVP
+
-
.
-
PFC ILIMIT
+
-
.
+
+
OUT
U1
SUM
.
.
.
400K ohm
1
PFCOUT
PFC OVP
+
-
.
-
..
3
ISENSE
+
-
.
VIN OK
+
-
.
+
1K ohm
VREF OK
CM6503
1V
FAULTB
6
IAC
ISENSEAMP
R1B
fpfc=
SS
VCC
PFCCLKB
PWMCLK
OSC
.
.
pwm clk=
R1A
18V
134KHz
+
-
.
VREF OK
50%
7
VCC
2.5V
D4
PFCCLKB
UVLO
Tri-Fault
Detect
CM6504
2.5V
67KHz
0.75V
19.4V
67KHz
2.5V
UVLO
..
2
GND
SS
100K ohm
10mS
..
.
pwm clk=
VFB
gmv
81
PWMCLK



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