CM6802A CHAMP [Champion Microelectronic Corp.], CM6802A Datasheet - Page 7

• Manufacturer Part Number: CM6802A
• Description: EPA/80++ ZVS-Like PFC/PWM COMBO CONTROLLER
• Manufacturer: CHAMP [Champion Microelectronic Corp.]

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