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
APPLICATIONS
PIN CONFIGURATION
EPA/80++ related Power Supply
SOP-16 (S16) / PDIP-16 (P16)
Desktop PC Power Supply
Internet Server Power Supply
LCD Power Supply
PDP Power Supply
IPC Power Supply
16
15
14
13
12
11
10
9
IEAO
1
2
3
4
5
6
7
8
VEAO
VFB
IAC
VREF
ISENSE
UPS
VCC
VRMS
SS
Battery Charger
PFC OUT
DC Motor Power Supply
Monitor Power Supply
Telecom System Power Supply
Distributed Power
VDC
PWM OUT
RAMP1
RAMP2
GND
DC ILIMIT
PIN DESCRIPTION
Operating Voltage
Pin No.
Symbol
Description
Min.
Typ.
Max.
Unit
PFC transconductance current error amplifier output
IEAO
1
0
VREF
V
(Gmi).
IAC has 2 functions:
1. PFC gain modulator reference input.
2. At start up, IAC is connected to VCC and it helps to
reduce the startup time and it helps to reduce the no
load consumption. Typical RAC resistor is about 6 Mega
ohm to sense the line.
IAC
2
0
100
uA
PFC Current Sense: for both Gain Modulator and PFC
ILIMIT comparator.
ISENSE
3
4
-1.2
0
0.7
V
V
Line Input Sense pin and also, it is the brown out sense
pin.
VRMS
VCC+0.3
Soft start capacitor pin; can use it to on/off the boost
follower function; it is pulled down by 300 ohm internal
resistor when DCILIMIT reach 1V; the power is limited
during the PWM Brown out.
5
SS
0
10
V
2
2009/11/02 Rev. 1.4
Champion Microelectronic Corporation
CHAMP [ CHAMPION MICROELECTRONIC CORP. ]
