CM6903A Datasheet, PDF (4/14 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
Threshold Voltage
Hysteresis
Threshold Voltage
Delay to Output
Threshold Voltage
Hysteresis
Digital Soft Start Timer (Note 2)
Threshold Voltage
Delay to Output (Note 2)
Fault Detect HIGH
Time to Fault Detect HIGH
Fault Detect LOW
Initial Accuracy
Voltage Stability
Temperature Stability
Total Variation
PFC Dead Time (Note 2)
Minimum Duty Cycle
Maximum Duty Cycle
Output Low Impedance
Output Low Voltage
Output High Impendence
Output High Voltage
Rise/Fall Time (Note 2)
Test Conditions
PFC OVP Comparator
PFC I_LIMIT Comparator
V_IN OK Comparator
PWM Digital Soft Start
Right After Start Up (CM6903A)
DC I_LIMIT Comparator
Tri-Fault Detect Comparator
V_FB=V_{FAULT DETECT LOW} to V_FB = OPEN,
470pF from V_FB to GND
Oscillator
T_A = 25℃
10V < V_CC < 15V
Line, Temp
PFC
I_AC=100uA,V_FB=2.55V, I_SENSE = 0V
I_AC=0uA,V_FB=2.0V, I_SENSE = 0V
I_OUT = -100mA
I_OUT = -10mA, V_CC = 8V
I_OUT = 100mA, V_CC = 15V
C_L = 1000pF
CM6903A
Min.
Typ.
Max.
2.60
2.77
2.85
200
290
-0.9
-1
-1.15
150
300
2.35
2.45
2.55
1.65
1.75
1.85
10
1.4
1.5
1.6
150
300
2.65
2.75
2.85
2
4
0.4
0.5
0.6
62
67
74
1
2
60
67
74.5
0.3
0.45
0.65
0
90
95
15
22.5
0.8
1.5
0.4
0.8
30
45
13.5
14.2
50
Unit
V
mV
V
ns
V
V
ms
V
ns
V
ms
V
kHz
%
%
kHz
µs
%
%
ohm
V
V
ohm
V
ns
2005/01/20
Champion Microelectronic Corporation
Page 4