CM6900 Datasheet, PDF (8/19 Pages) List of Unclassifed Manufacturers – PFC/PWM COMBO w/ INRUSH CURRENT CONTROL & SEPARATED PFCOVP

CM6900
PFC/PWM COMBO w/ INRUSH CURRENT CONTROL & SEPARATED PFCOVP
TYPICAL PERFORMANCE CHARACTERISTIC
127
120
113
106
99
92
85
78
71
64
57
2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3
VFB (V)
Voltage Error Amplifier (g_mv) Transconductance
220
200
180
160
140
120
100
80
60
40
20
0
-500 -400 -300 -200 -100 0 100 200 300 400 500
ISENSE (mV)
Current Error Amplifier (g_mi) Transconductance
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
VRMS (V)
Gain Modulator Transfer Characteristic (K)
K
=
IGAINMOD
IAC x (6
− IOFFSET
- 0.625)
mV
-
1
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
VRMS (V)
Gain
Gain
=
ISENSE − IOFFSET
IAC
2003/04/23 Preliminary Rev. 1.2
Champion Microelectronic Corporation
Page 7