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| CM6802A_12 Datasheet, PDF (7/25 Pages) Champion Microelectronic Corp. – EPA/80++ ZVS-Like PFC/PWM COMBO CONTROLLER | |||
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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, RT = 7.75 kâ¦, CT = 1000pF,
TA=Operating Temperature Range (Note 1)
Symbol
Parameter
GAIN Modulator
Gain1 (Note 3)
Gain2 (Note )3
Gain3 (Note 3)
Gain4 (Note 3)
Bandwidth (Note 4)
Output Voltage = Rmul *
(ISENSE-IOFFSET)
Oscillator (Measuring fpfc)
Initial fpfc Accuracy 1
Voltage Stability
Temperature Stability
Test Conditions
CM6802A/B/AH/BH
Unit
Min.
Typ.
Max.
IAC = 20 μ A, VRMS =1.125, VFB = 2.375V @
T=25â SS<VREF
IAC = 20 μ A, VRMS = 1.45588V, VFB =
2.375V @ T=25â SS<VREF
IAC = 20 μ A, VRMS =2.91V, VFB = 2.375V @
T=25â SS<VREF
IAC = 20 μ A, VRMS = 3.44V, VFB = 2.375V
@ T=25â SS<VREF
4.5
4.2
1.45
1.0
IAC = 40 μ A
IAC = 50 μ A, VRMS = 1.125V, VFB = 2.0V
0.7
SS<VREF
5
4.65
1
0.78
6
5.1
1.75
1.45
0.87
MHz
V
RT = 7.75 kâ¦, CT = 1000pF, TA = 25â
IAC=0uA
11V < VCC < 16.5V
51
55.5
60
kHz
2
%
2
%
Total Variation
Line, Temp
48
62
kHz
Ramp Valley to Peak Voltage VEAO=6V and IAC=20uA
2.5
V
PFC Dead Time (Note 4)
500
900
ns
CT Discharge Current
VRAMP2 = 0V, VRAMP1 = 2.5V
10
11
12
mA
Light Load Veao Threshold
Light Load Threshold (High)
Light Load Threshold (Low)
Room Temperature=25â
Room Temperature=25â
2.325 2.50 2.658
V
1.625 1.75
1.88
V
Hysteresis
700
850
mV
2012/05/10 Rev. 1.5
Champion Microelectronic Corporation
7
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