CM6500UN (1MHz PFC)
http://www.championmicro.com.tw
EPA/90+ ZVS-Like PFC CONTROLLER
Design for High Efficient Power Supply at both Full Load and Light Load
ELECTRICAL CHARACTERISTICS
Unless otherwise stated, these specifications apply Vcc=+14V, PGTHL=+2.0V, RT = 27kΩ, CT = 1000pF, TA=Operating
Temperature Range (Note 1)
CM6500UN
Symbol
Parameter
Test Conditions
Unit
Min.
Typ.
Max.
GAIN Modulator
IAC = 20μA, VRMS =1.125, VFB = 2.375V @
T=25℃
Gain1 (Note 3)
5
6
5
7.2
6
IAC = 20 μ A, VRMS = 1.45588V, VFB
2.375V @ T=25℃
=
Gain2 (Note 3 )
Gain3 (Note 3)
Gain4 (Note 3)
4
IAC = 20μA, VRMS =2.91V, VFB = 2.375V @
T=25℃
1.2
0.8
1.4
1
1.6
1.2
IAC = 20μA, VRMS = 3.44V, VFB = 2.375V
@ T=25℃
IAC = 40μA
Bandwidth (Note 4)
1
MHz
V
I
AC = 50μA, VRMS = 1.125V, VFB = 2.375V
Output Voltage = Rmul *
0.7
0.3
0.8
0.9
(ISENSE-IOFFSET
)
VEAO=6V
I(V)mul Threshold (low)
VEAO=2V
0.365
V
Oscillator (Measuring fpfc)
RT = 27 kΩ, CT = 1000pF, TA = 25℃
Initial fpfc Accuracy 1
60
66
72
kHz
IAC=0uA
Voltage Stability
11V < VCC < 16.5V
2
2
%
%
Temperature Stability
Ramp Valley to Peak Voltage
PFC Dead Time (Note 4)
CT Discharge Current
VEAO=6V and IAC=20uA
VRAMP2 = 0V, VRAMP1 = 2.5V
2.5
V
600
9
1000
11
ns
mA
10
2014/11/11 Rev. 1.0
Champion Microelectronic Corporation
8
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
