CM6802A/B/AH/BH (Dynamic Soft PFC/Green PWM)
http://www.championmicro.com.tw
EPA/80++ ZVS-Like PFC/PWM COMBO CONTROLLER
Design for High Efficient Power Supply at both Full Load and Light Load
ELECTRICAL CHARACTERISTICS:
(Conti.) Unless otherwise stated, these specifications apply Vcc=+14V, RT = 7.75 kΩ, CT = 1000pF,
TA=OperatingTemperature Range (Note 1)
CM6802A/B/AH/BH
Symbol
Parameter
Test Conditions
Unit
Min.
Typ.
Max.
μA
μA
Sink Current
ISENSE = -0.5V, IEAO = 1.5V
ISENSE = +0.5V, IEAO = 4.0V
DC Gain
-42
-33
-30
Source Current
28
30
60
31
40
75
42
Open Loop Gain
dB
dB
Power Supply Rejection Ratio
11V < VCC < 16.5V
PFC OVP Comparator
Threshold Voltage
2.70
200
2.85
0.25
3.0
V
Hysteresis
300
mV
PFC Green Power Detect Comparator
Veao Threshold Voltage
0.15
2.70
0.35
V
Tri-Fault Detect
Fault Detect HIGH
2.85
2
3.0
4
V
ms
V
Time to Fault Detect HIGH
VFB=VFAULT DETECT LOW to
VFB=OPEN, 470pF from VFB to GND
Fault Detect LOW
PFC ILIMIT Comparator
Threshold Voltage
0.4
0.5
0.6
-1.10
100
-1.00
200
-0.90
V
(PFCILIMIT– Gain Modulator
Output)
mV
ns
Delay to Output (Note 4)
DC ILIMIT Comparator
Overdrive Voltage = -100mV
Overdrive Voltage = 100mV
700
Threshold Voltage
0.92
1.0
1.08
V
Delay to Output (Note 4)
DC to DC PWM Brown Out Comparator
OK Threshold Voltage
700
ns
2.20
900
2.36
950
2.52
V
Hysteresis
1000
mV
2009/11/02 Rev. 1.4
Champion Microelectronic Corporation
6
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
