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CM6800 Datasheet(PDF) 6 Page - List of Unclassifed Manufacturers

Part No. CM6800
Description  LOW START UP CURRENT PFC/PWM CONTROLLER COMBO
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CM6800 Datasheet(HTML) 6 Page - List of Unclassifed Manufacturers

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CM6800/1
LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
2004/02/11 Rev. 1.6
Champion Microelectronic Corporation
Page 6
ELECTRICAL CHARACTERISTICS (Conti.) Unless otherwise stated, these specifications apply
Vcc=+15V, RT = 52.3kΩ, CT = 470pF, TA=Operating Temperature Range (Note 1)
CM6800/1
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
Sink Current
ISENSE = +0.5V, IEAO = 4.0V
-65
-35
µ A
Source Current
ISENSE = -0.5V, IEAO = 1.5V
35
75
µ A
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
0.2
0.3
0.4
V
VCC OVP Comparator
Threshold Voltage
17.5
17.9
18.5
V
Hysteresis
1.40
1.5
1.65
V
Tri-Fault Detect
Fault Detect HIGH
2.65
2.75
2.85
V
Time to Fault Detect HIGH
VFB=VFAULT DETECT LOW to
VFB=OPEN.470pF from VFB to GND
2
4
ms
Fault Detect LOW
0.4
0.5
0.6
V
PFC ILIMIT Comparator
Threshold Voltage
-1.10
-1.00
-0.90
V
(PFC ILIMIT VTH – Gain Modulator
Output)
20
100
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
OK Threshold Voltage
2.35
2.45
2.55
V
Hysteresis
0.95
1.2
1.4
V
GAIN Modulator
IAC = 100
µ A, V
RMS =0, VFB = 1V
0.70
0.84
0.95
IAC = 100
µ A, V
RMS = 1.1V, VFB = 1V
1.80
2.00
2.20
IAC = 150
µ A, V
RMS = 1.8V, VFB = 1V
0.90
1.00
1.10
Gain (Note 3)
IAC = 300
µ A, V
RMS = 3.3V, VFB = 1V
0.25
0.32
0.40
Bandwidth
IAC = 100
µ A
10
MHz
Output Voltage =
3.5K*(ISENSE-IOFFSET)
IAC = 250
µ A, V
RMS = 1.1V, VFB = 1V
0.84
0.90
0.95
V
Oscillator
Initial Accuracy
TA = 25℃
66
76
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)
600
860
ns
CT Discharge Current
VRAMP2 = 0V, VRAMP1 = 2.5V
6.5
15
mA


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