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CM6824 Datasheet(PDF) 5 Page - List of Unclassifed Manufacturers

Part No. CM6824
Description  LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
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CM6824 Datasheet(HTML) 5 Page - List of Unclassifed Manufacturers

 
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CM6824
LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
2002/09/20
Preliminary Rev. 1.1
Champion Microelectronic Corporation
Page 5
ELECTRICAL CHARACTERISTICS (Conti.) Unless otherwise stated, these specifications apply
Vcc=+15V, RT = 52.3kΩ, CT = 470pF, TA=Operating Temperature Range (Note 1)
CM6824
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Sink Current
ISENSE = +0.5V, IEAO = 4.0V
-65
-35
µA
Source Current
ISENSE = -0.5V, IEAO = 1.5V
35
75
µA
Open Loop Gain
60
70
dB
Power Supply Rejection Ratio
11V < VCC < 16.5V
60
75
dB
PFC OVP Comparator
Threshold Voltage
2.70
2.77
2.85
V
Hysteresis
230
290
mV
Low Power Detect Comparator
Threshold Voltage
0.4
0.5
0.6
V
VCC OVP Comparator
Threshold Voltage
19
19.4
20
V
Hysteresis
1.40
1.5
1.65
V
PFC ILIMIT Comparator
Threshold Voltage
-1.10
-1.00
-0.90
V
(PFC ILIMIT VTH – Gain Modulator
Output)
80
200
mV
Delay to Output (Note 4)
Overdrive Voltage = -100mV
250
ns
DC ILIMIT Comparator
Threshold Voltage
0.95
1.0
1.05
V
Delay to Output (Note 4)
Overdrive Voltage = 100mV
250
ns
VIN OK Comparator
Threshold Voltage
2.35
2.45
2.55
V
Hysteresis
0.8
1.0
1.2
V
GAIN Modulator
IAC = 100µA, VRMS = VFB = 0V
0.36
0.55
0.66
IAC = 100µA, VRMS = 1.1V, VFB = 0V
1.20
1.80
2.24
IAC = 150µA, VRMS = 1.8V, VFB = 0V
0.55
0.80
1.01
Gain (Note 3)
IAC = 300µA, VRMS = 3.3V, VFB = 0V
0.14
0.20
0.26
Bandwidth
IAC = 100µA
10
MHz
Output Voltage =
3.5K*(ISENSE-IOFFSET)
IAC = 250µA, VRMS = 1.1V, VFB = 0V
0.70
0.80
0.90
V
Oscillator
Initial Accuracy
TA = 25℃
66
75.5
kHz
Voltage Stability
11V < VCC < 16.5V
1
%
Temperature Stability
2
%
Total Variation
Line, Temp
68
84
kHz
Ramp Valley to Peak Voltage
2.5
V
PFC Dead Time (Note 4)
500
700
ns
CT Discharge Current
VRAMP2 = 0V, VRAMP1 = 2.5V
6.5
10.5
mA


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