SG6741A Ver la hoja de datos (PDF) - Fairchild Semiconductor
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SG6741A Datasheet PDF : 12 Pages
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Electrical Characteristics
VDD=15V; TA=25C°, unless otherwise noted.
Symbol
Parameter
Conditions
Min. Typ. Max. Units
VDD Section
VDD-OP
VDD-ON
VDD-OFF
IDD-ST
IDD-OP
IDD-OLP
VDD-OLP
VDD-OVP
tD-VDDOVP
Continuously Operating Voltage
Start Threshold Voltage
Minimum Operating Voltage
Startup Current
Operating Supply Current
Internal Sink Current
IDD-OLP off Voltage
VDD Over-Voltage Protection
VDD Over-Voltage Protection
Debounce Time
VDD-ON – 0.16V
VDD=15V, GATE Open
VDD-OLP +0.1V
Auto Restart
Auto Restart
HV Electrical Characteristics
IHV
IHV-LC
Supply Current Drawn from HV
Pin
Leakage Current After Startup
VAC=90V, (VDC=120V)
VDD=10µF
HV=500V, VDD=VDD-
OFF+1V
Oscillator Section
Center Frequency
fOSC
Frequency in Nominal Mode
Hopping Range
tHOP
fOSC-G
fDV
Hopping Period
Green-Mode Frequency
Frequency Variation vs. VDD
Deviation
VDD=11V to 22V
fDT
Frequency Variation vs.
Temperature Deviation
TA=-20 to 85°C
Feedback Input Section
AV
Input Voltage to Current-Sense
Attenuation
ZFB
VFB-OPEN
VFB-OLP
tD-OLP
Input Impedance
FB Output High Voltage
FB Pin Open
FB Open-loop Trigger Level
The Delay Time of FB Pin Open-
Loop Protection
RI=26kΩ
VFB-N Green-Mode Entry FB Voltage
VFB-G Green-Mode Ending FB Voltage
VFB-ZDC Zero Duty-Cycle Input Voltage
15.5
9.5
50
6.5
25
100
62
±3.7
16
1/3.75
4
5.5
3.7
50
1.9
22
V
16.5
17.5
V
10.5
11.5
V
30
µA
4
5
mA
70
90
µA
7.5
8.0
V
26
27
V
180
260
µs
2
mA
1
20
µA
65
68
kHz
±4.2
±4.7
4.4
ms
18
21
kHz
5
%
5
%
1/3.20 1/2.75
V/V
7
kΩ
V
4.0
4.3
V
56
62
ms
2.1
2.3
V
VFB-N -
0.5
V
1
V
Continued on following page…
© 2008 Fairchild Semiconductor Corporation
SG6741A • Rev. 1.0.1
5
www.fairchildsemi.com
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