CM6800 Ver la hoja de datos (PDF) - Champion Microelectronic
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CM6800 Datasheet PDF : 18 Pages
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CM6800
LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
ELECTRICAL CHARACTERISTICS (Conti.) Unless otherwise stated, these specifications apply
Vcc=+15V, RT = 30.16kΩ, CT =1000pF, TA=Operating Temperature Range (Note 1)
Symbol
Parameter
Test Conditions
Sink Current
Source Current
Open Loop Gain
Power Supply Rejection Ratio
Threshold Voltage
Hysteresis
Threshold Voltage
Threshold Voltage
Hysteresis
Fault Detect HIGH
Time to Fault Detect HIGH
Fault Detect LOW
Threshold Voltage
(PFC ILIMIT VTH – Gain Modulator
Output)
Delay to Output (Note 4)
Threshold Voltage
Delay to Output (Note 4)
OK Threshold Voltage
Hysteresis
Gain (Note 3)
Bandwidth
Output Voltage =
3.5K*(ISENSE-IOFFSET)
ISENSE = +0.5V, IEAO = 4.0V
ISENSE = -0.5V, IEAO = 1.5V
11V < VCC < 16.5V
PFC OVP Comparator
Low Power Detect Comparator
VCC OVP Comparator
Tri-Fault Detect
VFB=VFAULT DETECT LOW to
VFB=OPEN.470pF from VFB to GND
PFC ILIMIT Comparator
Overdrive Voltage = -100mV
DC ILIMIT Comparator
Overdrive Voltage = 100mV
VIN OK Comparator
GAIN Modulator
IAC = 100 μ A, VRMS =0, VFB = 1V
at room temp
IAC = 100 μ A, VRMS = 1.1V, VFB = 1V
at room temp
IAC = 150 μ A, VRMS = 1.8V, VFB = 1V
at room temp
IAC = 300 μ A, VRMS = 3.3V, VFB = 1V
at room temp
IAC = 100 μ A
IAC = 250 μ A, VRMS = 1.1V, VFB = 1V
Min.
35
60
60
CM6800
Typ.
-65
75
70
75
Max.
-35
2.70
2.77
2.85
230
290
0.2
0.3
0.4
17.5
17.9
18.5
1.40
1.5
1.65
2.65
2.75
2.85
2
4
0.4
0.5
0.6
-1.10
20
-1.00
100
250
-0.90
0.95
1.0
1.05
250
2.35
2.45
2.55
0.95
1.2
1.4
0.70
0.84
0.95
1.80
2.00
2.20
0.90
1.00
1.10
0.25
0.32
0.40
10
0.84
0.90
0.95
Unit
μA
μA
dB
dB
V
mV
V
V
V
V
ms
V
V
mV
ns
V
ns
V
V
MHz
V
2008/10/23 Rev. 2.1
Champion Microelectronic Corporation
Page 5
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