?2008 Fairchild Semiconductor Corporation
www.fairchildsemi.com
SG6901A " Rev. 1.0.2
9
Electrical Characteristics
V
DD
=15V and T
A
=25癈 unless otherwise specified.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
PEAK CURRENT LIMIT
I
P
Constant Current Output
R
I
=24K&
90
100
110
礎
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
0.40
0.45
V
tPD-PFC
Propagation Delay
200
ns
t
LEB-PFC
Leading-Edge Blanking Time
270
350
450
ns
MULTIPLIER
I
AC
Input AC Current
Multiplier Linear Range
0
360
礎
I
MOmax
Maximum Multiplier Current Output
R
I
=24K&
250
礎
I
MO-1
Multiplier Current Output (Low-line,
High-Power)
V
RMS
=1.05V; I
AC
=90礎;
V
EA
=7.5V; R
I
=24K&
200
250
280
礎
I
MO2
Multiplier Current Output (High-line,
High-Power)
V
RMS
=3V; I
AC
=264礎;
V
EA
=7.5V; R
I
=24K&
65
85
礎
V
IMP
Voltage of IMP Open
3.4
3.9
4.4
V
PFC OUTPUT DRIVER
V
Z
Output Voltage Maximum (Clamp)
V
DD
=20V
16
18
V
V
OL-PFC
Output Voltage Low
V
DD
=15V; I
O
=100mA
1.5
V
t
PFC
Interval OPFC Lags Behind OPWM
at Startup
9.0
11.5
14.0
ms
V
OH-PFC
Output Voltage High
V
DD
=13V; I
O
=100mA
8
V
t
R-PFC
Rising Time
V
DD
=15V; C
L
=5nF;
O/P=2V to 9V
40
70
120
ns
t
F-PFC
Falling Time
V
DD
=15V; C
L
=5nF;
O/P=9V to 2V
40
60
110
ns
DCY
MAX
Maximum Duty Cycle
93
98
%
PWM STAGE
FBPWM
A
v-PWM
FB to Current Comparator
Attenuation
2.5
3.1
3.5
V/V
Z
FB
Input Impedance
4
5
7
K&
IFB
Maximum Source Current
0.8
1.2
1.5
mA
FB
OPEN-LOOP
PWM Open-Loop Protection Voltage
4.2
4.5
4.8
V
t
OPEN-PWM
PWM Open-Loop Protection Delay
Time
45
56
70
ms
t
OPEN-PWM-
Hiccup
Interval of PWM Open-Loop
Protection Reset
450
600
750
ms
Continued on the following page&
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