FAN6747 Fairchild Semiconductor, FAN6747 Datasheet - Page 8
FAN6747
Manufacturer Part Number
FAN6747
Description
The highly integrated FAN6747 PWM controller provides several features to enhance the performance of flyback converters
Manufacturer
Fairchild Semiconductor
Datasheet
1.FAN6747.pdf
(15 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
FAN6747LMY
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 2010 Fairchild Semiconductor Corporation
FAN6747 • Rev. 1.0.3
Electrical Characteristics
V
Feedback Input Section
DD
Symbol
(V
-V
V
V
V
V
=15V and T
t
V
FB-ZDC
OZ-OFF
D-OLP
FB-OLP
OZ-ON
OZ-ON
OZ-OFF
Z
f
f
A
DV
FBO
DT
FB
V
)
FB Threshold Voltage for Zero-
Duty Recovery
FB Threshold Voltage for Zero-
Duty
FB Voltage Hysteresis for V
to V
Frequency Variation vs. V
Deviation
Frequency Variation vs.
Temperature Deviation
Input-Voltage to Current-Sense
Attenuation
Input Impedance
FB Pin Open Voltage
FB Open-Loop Protection
Threshold Voltage
Open-Loop Protection Debounce
A
=25°C, unless otherwise specified.
OZ-OFF
Parameter
DD
Figure 11. Burst-Mode Diagram
OZ-ON
Figure 10. PWM Frequency
V
T
V
A
DD
FB
=-40 to 105°C
=12V to 22V
Conditions
< V
FB-G
8
Min.
1/4.5
13.4
190
1.6
1.5
4.8
4.3
50
Typ.
1/4.0
15.5
100
215
1.8
1.7
5.0
4.6
Max.
1/3.5
17.6
150
240
2.0
1.9
5.2
4.9
5
5
www.fairchildsemi.com
Units
V/V
mV
kΩ
ms
%
%
V
V
V
V