sg6980 Fairchild Semiconductor, sg6980 Datasheet - Page 6

• Manufacturer Part Number: sg6980
• Description: Single Stage Pfc Controller
• Manufacturer: Fairchild Semiconductor

Single-Stage PFC Controller
V
Symbol
V
V
t
Voltage Error Amplifier
Symbol
V
Av
Z
OVP
△OVP
t
V
G
V
G
I
UVP
t
Current Error Amplifier
Symbol
V
A
BW
CMRR
V
V
I
I
I
© System General Corp.
Version 1.0.1 (IAO33.0064.B0)
UVP
OVP-PFC
FB-L
UVP-PFC
MR1
L
H
o
RMS-UVP-1
RMS-UVP-2
REF
FB-H
FB-L
OFFSET
I
OUT-HIGH
OUT-LOW
FB-H
FB-L
RMS
, I
FB
FB
MR2
FB
for UVP and RDY
Parameter
RMS AC Voltage Under-Voltage Threshold
(with T
Recovery Level on VRMS for UVP Mode
Under-Voltage Protection Propagation
Delay Time (No Delay at Start-up)
Parameter
Reference Voltage
Open-Loop Gain
Output Impedance
PFC Over-Voltage Protection on FB
PFC Feedback Voltage Protection
Hysteresis
Debounce Time of PFC OVP
Clamp-High Feedback Voltage
Clamp-High Gain
Clamp-Low Feedback Voltage
Clamp-Low Gain
Clamp-Low Maximum Current
PFC Feedback Under-Voltage Protection
Debounce Time of PFC Feedback 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
Test Conditions
V
RI=24KΩ (I
Test Conditions
- 6 -
CM
= 0 ~ 1.5V
MR
=20+I
RI
• 0.8)
www.sg.com.tw • www.fairchildsemi.com
Min.
0.75
V
+0.18
150
Min.
2.95
1.066 •
V
60
40
1.033 •
V
0.916 •
V
1.5
0.35
40
Min.
3.2
50
3
RMS-UVP-1
REF
REF
REF
Typ.
0.80
V
+0.20
195
Typ.
3
60
110
1.083 •
V
90
70
1.050 •
V
500
0.950 •
V
6.5
2
0.40
70
Typ.
8
60
1.5
70
0.25
RMS-UVP-1
REF
REF
REF
Product Specification
September 17, 2007
Max.
0.85
V
+0.22
240
Max.
3.05
1.100 •
V
120
120
1.066 •
V
0.966 •
V
0.45
120
Max.
0.2
70
RMS-UVP-1
REF
REF
REF
SG6980
Unit
µs
µs
Unit
V
V
ms
Unit
V
dB
KΩ
V
mV
V
µA/mV
V
µA/mV
mA
V
mV
dB
MHz
dB
V
V
µA
mA
mA