參數(shù)資料
型號： SG6901ASZ
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 穩(wěn)壓器
英文描述： PFC / Flyback PWM Controller
中文描述： POWER FACTOR CONTROLLER, 68 kHz SWITCHING FREQ-MAX, PDSO20
封裝： 0.300 INCH, ROHS COMPLIANT, MS-013AC, SOP-20
文件頁數(shù)： 6/18頁
文件大小： 716K
代理商： SG6901ASZ
Product Specification
PFC / Flyback PWM Controller
VRMS for UVP and RANGE
Symbol
Parameter
SG6901A
System General Corp.
Version 1.0.1 (IAO33.0062.B0)
- 6 -
www.sg.com.tw www.fairchildsemi.com
September 26, 2007
Test Conditions
Min.
Typ.
Max.
Unit
V
RMS-UVP-1
RMS AC Voltage Under-Voltage Protection
Threshold (with t
UVP
delay)
0.75
0.8
0.85
V
V
RMS-UVP-2
Recovery Level on V
RMS
V
RMS-UVP-1
+ 0.16V
V
RMS-UVP-1
+ 0.18V
V
RMS-UVP-1
+ 0.2V
t
UVP-Min
+1
4
240
2.00
V
t
D-PWM
When UVP Occurs, Interval from PFC Off to
PWM Off
Under-Voltage Protection Delay Time*
High V
RMS
Threshold for RANGE
Comparator
Low V
RMS
Threshold for RANGE
Comparator
Range-Enable Delay Time
Output Low Voltage of RANGE Pin
Output High Leakage Current of RANGE Pin
t
UVP-Min
+9
ms
t
UVP
V
RMS-H
150
1.90
195
1.95
ms
V
V
RMS-L
1.55
1.60
1.65
V
t
RANGE
V
OL
I
OH
I
o
=1mA
RANGE=5V
140
170
200
0.5
50
ms
V
nA
* No delay for start-up.
PFC Stage
Voltage Error Amplifier
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
REF
Av
Z
o
OVP
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
2.95
3.20
3.00
60
110
3.25
3.05
3.30
V
dB
K
Ω
V
△
OVP
PFC
60
90
120
mV
t
OVP-PFC
V
FBPFC-H
G
FBPFC-H
V
FBPFC-L
G
FBPFC-L
I
FBPFC-L
I
FBPFC-H
UVP
FBPFC
t
UVP-FBPFC
40
3.10
2.75
1.5
70
0.35
40
70
3.15
0.5
2.85
6.5
2.0
110
0.40
70
120
3.20
2.90
0.45
120
μs
V
μA/mV
V
mA/mV
mA
μA
V
μs
Current Error Amplifier
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
OFFSET
A
I
BW
CMRR
V
OUT-HIGH
V
OUT-LOW
I
MR1
, I
MR2
I
L
I
H
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
V
CM
=0 to +1.5V
R
I
=24K
(I
MR
=20+I
RI
0.8)
3.2
50
3
8
60
1.5
70
0.25
0.2
70
mV
dB
MHz
dB
V
V
μA
mA
mA
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