CM6802A/B/AH/BH
(Dynamic Soft PFC/Green PWM)
http://www.championmicro.com.tw
EPA/80++ ZVS-Like PFC/PWM COMBO CONTROLLER
Design for High Efficient Power Supply at both Full Load and Light Load
ELECTRICAL CHARACTERISTICS:
(Conti.) Unless otherwise stated, these specifications apply Vcc=+14V, R
T
= 7.75 kΩ, C
T
= 1000pF,
T
A
=OperatingTemperature Range (Note 1)
CM6802A/B/AH/BH
Min.
Typ.
Max.
Symbol
GAIN Modulator
Parameter
Test Conditions
Unit
Gain1 (Note 3)
Gain2 (Note )3
Gain3 (Note 3)
Gain4 (Note 3)
Bandwidth (Note 4)
Output Voltage = Rmul *
(I
SENSE
-I
OFFSET
)
Oscillator (Measuring fpfc)
Initial fpfc Accuracy 1
Voltage Stability
Temperature Stability
Total Variation
Ramp Valley to Peak Voltage
PFC Dead Time (Note 4)
CT Discharge Current
Light Load Veao Threshold
Light Load Threshold (High)
Light Load Threshold (Low)
Hysteresis
I
AC
= 20
μ
A, V
RMS
=1.125, V
FB
= 2.375V @
T=25℃ SS<VREF
I
AC
= 20
μ
A, V
RMS
= 1.45588V, V
FB
=
2.375V @ T=25℃ SS<VREF
I
AC
= 20
μ
A, V
RMS
=2.91V, V
FB
= 2.375V @
T=25℃ SS<VREF
I
AC
= 20
μ
A, V
RMS
= 3.44V, V
FB
= 2.375V
@ T=25℃
SS<VREF
I
AC
= 40
μ
A
I
AC
= 50
μ
A, V
RMS
= 1.125V, V
FB
= 2.0V
SS<VREF
4.5
4.2
1.45
1.0
5
4.65
6
5.1
1.75
1.45
1
MHz
0.7
0.78
0.87
V
R
T
= 7.75 kΩ, C
T
= 1000pF, T
A
= 25℃
IAC=0uA
11V < V
CC
< 16.5V
51
55.5
2
2
60
kHz
%
%
Line, Temp
VEAO=6V and IAC=20uA
48
2.5
500
62
kHz
V
900
11
12
ns
mA
V
RAMP2
= 0V, V
RAMP1
= 2.5V
10
Room Temperature=25℃
Room Temperature=25℃
2.325
1.625
700
2.50
1.75
2.658
1.88
850
V
V
mV
2009/11/02
Rev. 1.4
Champion Microelectronic Corporation
7
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
