CM6903/4
Low Pin Count PFC/PWM C
ONTROLLER
C
OMBO
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
PWM
Duty Cycle Range
Output Low Impedance
Output Low Voltage
Output High Impendence
Output High Voltage
Rise/Fall Time (Note 2)
Start-Up Current
Operating Current
Undervoltage Lockout Threshold
Undervoltage Lockout Hysteresis
Note 2: Guaranteed by design, not 100% production test.
I
OUT
= 100mA, V
CC
= 15V
C
L
= 1000pF
Supply
V
CC
= 11V, C
L
= 0
V
CC
= 15V, C
L
= 0
14.7
4.85
100
2.5
15
5
150
4.0
15.3
5.15
uA
mA
V
V
13.5
I
OUT
= -100mA
I
OUT
= -10mA, V
CC
= 8V
CM6903
CM6904
0-49.5
0-49.5
8
0.8
0.7
8
14.2
50
0-50
0-50
15
1.5
1.5
15
%
%
ohm
V
V
ohm
V
ns
CM6903/4
Min.
Typ.
Max.
Unit
Note 1: Limits are guaranteed by 100% testing, sampling, or correlation with worst-case test conditions.
TYPICAL PERFORMANCE CHARACTERISTIC
127
120
Transconductance (umho)
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
VFB (V)
3
Voltage Error Amplifier (g
mv
) Transconductance
2002/12/16
Preliminary
Rev. 0.4
Champion Microelectronic Corporation
Page 5
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
