CM6802 데이터 시트보기 (PDF) - Champion Microelectronic
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CM6802 Datasheet PDF : 18 Pages
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CM6802
NO BLEED RESISTOR GREEN MODE PFC/PWM CONTROLLER COMBO
11 PWM OUT PWM driver output
12 PFC OUT PFC driver output
13 VCC
14 VREF
Positive supply
Buffered output for the internal 7.5V reference
15 VFB
16 VEAO
PFC transconductance voltage error amplifier input
PFC transconductance voltage error amplifier output
0
VCC
V
0
VCC
V
10
15
20
V
7.5
V
0
2.5
3
V
0
6
V
BLOCK DIAGRAM
16
VEAO
1
IEAO
13
VCC
15 VFB
VCC
2.5V
2 IAC
VRMS
4
3 ISENSE
7 RAMP1
GMv
-
.
+
0.5V
GAIN
MODULATOR
LOW POWER
DETECT
3.5K
GMi
+
.
-
3.5K
VCC
19.4V
VCC OVP
+
-
2.75V
PFC OVP
+
.
-
PFC CMP
+
-
-1V
+
-
PFC ILIMIT
OSCILLATOR
8 RAMP2
350
SW SPST
DUTY CYCLE
LIMIT
PWM
DUTY
7.5V
REFERENCE
S
Q
R
Q
S
Q
R
Q
VREF
14
POWER
FACTOR
CORRECTOR
MPPFC VCC
PFC OUT
12
MNPFC
GND
CLK
PFCOUT
PWMOUT
1.5V
6
VDC
Vcc
20uA350
5 SS
SW SPST
VREF
DC ILIMIT
9
SW SPST
PWM
CMP
SS CMP
SW SPST
VFB
2.45V
-
.
+
VIN OK
1.0V
DC ILIMIT
S
Q
R
Q
Q
S
R
VCC
UVLO
fosc=2xfpwm=4xfpfc
VCC
MPPWM
PWM OUT
11
MNPWM
GND
PULSE
WIDTH
MODULATOR
GND
10
2003/06/25 Preliminary
Champion Microelectronic Corporation
Page 3
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