SG6905 Fairchild Semiconductor, SG6905 Datasheet - Page 6

• Manufacturer Part Number: SG6905
• Manufacturer: Fairchild Semiconductor

Green mode PFC/Flyback-PWM Controller
VRMS for UVP
Symbol
V
V
t
t
PFC stage
Voltage Error Amplifier
Symbol
V
Av
Z
OVP
t
V
G
V
G
I
I
UVP
t
Current Error Amplifier
Symbol
V
A
BW
CMRR
V
V
I
I
I
© System General Corp.
Version 1.1.1 (IAO33.0060.B1)
D-PWM
UVP
OVP-PFC
FBPFC-L
FBPFC
UVP-PFC
MR1
L
H
o
OVP
RMS-UVP-1
RMS-UVP-2
REF
FBPFC-H
FBPFC-L
OFFSET
I
OUT-HIGH
OUT-LOW
FBPFC-H
FBPFC-L
, I
FBPFC
FBPFC
-
MR2
PFC
H
Parameter
RMS AC Voltage Under Voltage Protection
Threshold (with T
Recovery level on VRMS
When UVP occurs, the interval from OPFC off
to OPWM off
Under Voltage Protection Delay Time
(No delay for startup)
Parameter
Reference Voltage
Open-loop Gain
Output Impedance
PFC Over-Voltage-Protection on FBPFC
PFC Feedback Voltage Protection Hysteresis
Debounce Time of PFC OVP
Clamp-High Feedback Voltage
Clamp-High Gain
Clamp-Low Feedback Voltage
Clamp-Low Gain
Maximum Source Current
Maximum Sink Current
PFC Feedback Under Voltage Protection
Debounce Time of PFC UVP
Parameter
Input Offset Voltage ((-) > (+))
Open-loop Gain
Unit Gain Bandwidth
Common-mode Rejection Ratio
Output High Voltage
Output Low Voltage
Reference Current Source
Maximum Source Current
Maximum Sink Current
UVP
delay)
Test Conditions
RI= 24KΩ
RI= 24KΩ
Test Conditions
RI= 24KΩ
RI= 24KΩ
Test Conditions
V
RI= 24 KΩ (I
CM
= 0~1.5V
- 6 -
MR
=20+I
RI
*0.8)
www.sg.com.t w • www.fairchildsemi.com
Min.
0.75
V
1
t
+9
150
Min.
2.95
3.2
60
40
3.1
2.75
1.5
70
0.35
40
Min.
3.2
50
3
UVP-Min
+0.17
RMS-UVP-
Typ.
0.8
V
1
195
Typ.
3
60
110
3.25
90
70
3.15
0.5
2.85
6.5
2
110
0.4
70
Typ.
8
60
1.5
70
0.25
+0.19
RMS-UVP-
Product Specification
September 27, 2007
Max.
0.85
V
1
t
+14
240
Max.
3.05
3.3
120
120
3.2
2.9
0.45
120
Max.
0.2
70
UVP-Min
+0.21
RMS-UVP-
SG6905
Unit
V
V
ms
ms
Unit
V
dB
KΩ
V
mV
µs
V
µA/mV
V
mA/mV
mA
µA
V
µs
Unit
mV
dB
MHz
dB
V
V
µA
mA
mA