CM6903A Datasheet, PDF (5/14 Pages) Champion Microelectronic Corp. – Low Pin Count PFC/PWM CONTROLLER COMBO

CM6903A
Low Pin Count PFC/PWM CONTROLLER COMBO
ELECTRICAL CHARACTERISTICS (Conti.) Unless otherwise stated, these specifications apply
Vcc=+15V, R_T = 52.3kΩ, C_T = 470pF, T_A=Operating Temperature Range (Note 1)
Symbol
Parameter
Test Conditions
CM6903A
Unit
Min.
Typ.
Max.
PWM
Duty Cycle Range
CM6903A
0-49.5
0-50
%
Output Low Impedance
15
22.5
ohm
Output Low Voltage
I_OUT = -100mA
I_OUT = -10mA, V_CC = 8V
0.8
1.5
V
0.7
1.5
V
Output High Impendence
30
45
ohm
Output High Voltage
Rise/Fall Time (Note 2)
I_OUT = 100mA, V_CC = 15V
13.5
14.2
V
C_L = 1000pF
50
ns
Supply
Start-Up Current
Operating Current
V_CC = 11V, C_L = 0
V_CC = 15V, C_L = 0
100
150
uA
2.5
4.0
mA
Undervoltage Lockout Threshold
12.74 13.0 13.26
V
Undervoltage Lockout Hysteresis
2.85
3.0
3.15
V
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
Note 2: Guaranteed by design, not 100% production test.
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
2005/01/20
Champion Microelectronic Corporation
Page 5