SG6901 Fairchild Semiconductor, SG6901 Datasheet - Page 8

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SG6901

Manufacturer Part Number
SG6901
Description
The highly integrated SG6901A is designed for power supplies with boost PFC and flyback PWM
Manufacturer
Fairchild Semiconductor
Datasheet

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© 2008 Fairchild Semiconductor Corporation
SG6901A • Rev. 1.0.2
Electrical Characteristics
V
PFC STAGE
Voltage Error Amplifier
CURRENT ERROR AMPLIFIER
△OVP
DD
UVP
t
Symbol
V
I
V
G
V
G
OVP
V
UVP-FBPFC
V
MR1
t
I
I
CMRR
OVP-PFC
OUT-HIGH
FBPFC-L
FBPFC-H
OUT-LOW
=15V and T
FBPFC-H
FBPFC-H
FBPFC-L
FBPFC-L
V
OFFSET
BW
Av
Z
A
I
REF
I
, I
FBPFC
H
L
o
I
PFC
MR2
PFC
Reference Voltage
Open-Loop Gain
Output Impedance
PFC Over-Voltage Protection (OVP Pin)
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
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
A
=25°C unless otherwise specified.
Parameter
8
V
R
(I
MR
CM
I
=24KΩ
Conditions
=20+I
=0 to +1.5V
RI
•0.8)
Min.
2.95
3.20
3.10
2.75
0.35
1.5
3.2
60
40
70
40
50
3
Continued on the following page…
Typ.
3.15
3.00
3.25
2.85
0.40
0.25
110
110
0.5
6.5
2.0
1.5
60
90
70
70
60
70
8
Max.
3.05
3.30
3.20
2.90
0.45
120
120
120
0.2
70
www.fairchildsemi.com
mA/mV
µA/mV
Units
MHz
mV
mA
mV
mA
mA
dB
µA
dB
dB
µA
µs
µs
V
V
V
V
V
V
V

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