參數(shù)資料
型號: SG6901A
廠商: Fairchild Semiconductor Corporation
元件分類: 基準(zhǔn)電壓源/電流源
英文描述: PFC / Flyback PWM Controller
中文描述: 功率因數(shù)校正/反激式PWM控制器
文件頁數(shù): 7/18頁
文件大?。?/td> 716K
代理商: SG6901A
Product Specification
PFC / Flyback PWM Controller
Peak Current Limit
Symbol
Parameter
SG6901A
System General Corp.
Version 1.0.1 (IAO33.0062.B0)
- 7 -
www.sg.com.tw www.fairchildsemi.com
September 26, 2007
Test Conditions
Min.
Typ.
Max.
Unit
I
P
Constant Current Output
R
I
=24K
90
100
110
μA
V
RMS
=1.05V
0.15
0.20
0.25
V
V
PK
Peak Current Limit Threshold Voltage
Cycle-by-Cycle Limit (V
SENSE
< V
PK
)
V
RMS
=3V
0.35
270
0.40
350
0.45
200
450
V
ns
ns
t
PD-PFC
t
LEB-PFC
Propagation Delay
Leading-Edge Blanking Time
Multiplier
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
I
AC
I
MO–max
Input AC Current
Maximum Multiplier Current Output
Multiplier Current Output (Low-line,
High-power)
Multiplier Current Output (High-line,
High-power)
Voltage of IMP Open
Multiplier Linear Range
R
I
=24K
V
RMS
=1.05V; I
AC
=90μA;
V
EA
=7.5V; R
I
=24K
V
RMS
=3V; I
AC
=264μA;
V
EA
=7.5V; R
I
=24K
0
250
360
μA
μA
I
MO-1
200
250
280
μA
I
MO–2
65
85
μA
V
IMP
3.4
3.9
4.4
V
PFC Output Driver
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
V
Z
V
OL-PFC
Output Voltage Maximum (Clamp)
Output Voltage Low
Interval OPFC Lags Behind OPWM at
Start-up
Output Voltage High
V
DD
=20V
V
DD
=15V; I
O
=100mA
16
18
1.5
V
V
t
PFC
9.0
11.5
14.0
ms
V
OH-PFC
V
DD
=13V; I
O
=100mA
V
DD
=15V; C
L
=5nF;
O/P=2V to 9V
V
DD
=15V; C
L
=5nF;
O/P=9V to 2V
8
V
t
R-PFC
Rising Time
40
70
120
ns
t
F-PFC
Falling Time
40
60
110
ns
DCY
MAX
Maximum Duty Cycle
93
98
%
PWM Stage
FBPWM
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
A
v-PWM
Z
FB
I
FB
FB
OPEN-LOOP
t
OPEN-PWM
FB to Current Comparator Attenuation
Input Impedance
Maximum Source Current
PWM Open-Loop Protection voltage
2.5
4
0.8
4.2
3.1
5
1.2
4.5
3.5
7
1.5
4.8
V/V
K
mA
V
PWM Open-Loop Protection Delay Time
Interval of PWM Open-Loop Protection
Reset
45
56
70
ms
t
OPEN-PWM-Hiccup
450
600
750
ms
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