CM6800A Datasheet, PDF (5/18 Pages) Champion Microelectronic Corp. – LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO

CM6800A
LOW START-UP CURRENT PFC/PWM CONTROLLER COMBO
ELECTRICAL CHARACTERISTICS (Conti.) Unless otherwise stated, these specifications apply
Vcc=+15V, R_T =30.16kΩ, C_T = 1000pF, T_A=Operating Temperature Range (Note 1)
Symbol
Parameter
Sink Current
Source Current
Open Loop Gain
Test Conditions
I_SENSE = +0.6V, IEAO = 4.0V
I_SENSE = -0.6V, IEAO = 1.5V
CM6800A
Unit
Min.
Typ.
Max.
-65
-35
μA
35
75
μA
60
70
dB
Power Supply Rejection Ratio
11V < V_CC < 16.5V
60
75
dB
PFC OVP Comparator
Threshold Voltage
2.70
2.77
2.85
V
Hysteresis
230
300
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
Fault Detect LOW
V_FB=V_{FAULT DETECT LOW} to
V_FB=OPEN.470pF from V_FB to GND
2
4
ms
0.4
0.5
0.6
V
PFC I_LIMIT Comparator
Threshold Voltage
-1.10 -1.00 -0.90
V
(PFC I_LIMIT V_TH – Gain Modulator
Output)
20
100
mV
Delay to Output (Note 4)
Overdrive Voltage = -100mV
250
ns
DC I_LIMIT Comparator
Threshold Voltage
0.95
1.0
1.05
V
Delay to Output (Note 4)
Overdrive Voltage = 100mV
250
ns
V_IN OK Comparator
OK Threshold Voltage
2.16
2.25
2.36
V
Hysteresis
0.9
1.1
1.3
V
Gain (Note 3)
Bandwidth
GAIN Modulator
I_AC = 100 μ A, V_RMS =0, V_FB = 1V
at room temp
I_AC = 100 μ A, V_RMS = 1.1V, V_FB = 1V
at room temp
I_AC = 150 μ A, V_RMS = 1.8V, V_FB = 1V
at room temp
I_AC = 300 μ A, V_RMS = 3.3V, V_FB = 1V
at room temp
I_AC = 100 μ A
0.70
1.80
0.90
0.25
0.84
2.00
1.00
0.32
10
0.95
2.20
1.10
0.40
MHz
Output Voltage =
3.5K*(I_SENSE-I_OFFSET)
I_AC = 250 μ A, V_RMS = 1.1V, V_FB = 1V
0.84
0.90
0.95
V
2006/10/11 Rev. 1.3
Champion Microelectronic Corporation
Page 5