SG6849-100D ETC2 [List of Unclassifed Manufacturers], SG6849-100D Datasheet - Page 5

• Manufacturer Part Number: SG6849-100D
• Description: Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
Current Sense Section
Symbol Parameter
TPD
VTH,VA
Oscillator Section
Symbol
F
F
F
F
I
F
V
*Please see the “Green-Mode Burst Back (F
© System General Corp.
Version 1.0(IRO33.0002.B3)
FB-G-OFF
OSC
OSC
OSC-G-BK
OSC-G-OFF
DV
DD-TH-G
Propagation Delay
Current Limiting Valley Threshold Voltage for 65kHz
Current Limiting Valley Threshold Voltage for 100kHz
Parameter
SG6849–65 Frequency
SG6849–100 Frequency
Green-Mode Burst Back Frequency*
Green-Mode OFF Frequency*
Green-Mode OFF FB Input Current
Frequency Variation versus V
V
OFF
DD
-Low Threshold Voltage for Exiting Green-Mode
High-Line
Sense Voltage
T
1
T
DD
OSC-G-BK
T
2
ON
Deviation
) and Green-Mode OFF Frequency (F
Low-Line Sense
Voltage
T
OFF
Test Condition
VDD = 20V
VDD = 15V
VDD = 10V
VDD = 20V
VDD = 15V
VDD = 10V
Test Condition
V
DD
- 5 -
= 10 to 20V
V
LIMIT
Ramp
V
TH,VA
OSC-G-OFF
Min.
0.84
0.72
0.58
0.76
0.65
0.52
Min.
60
92
20
0.9
V
OFF
DD
+1.0
) vs. V
Typ.
100
0.89
0.77
0.63
0.81
0.70
0.57
Typ.
65
100
25
0
1.15
V
OFF
DD
DD
V
+1.5
” curves.
TH,FT
0V
0.77V
Product Specification
Max.
0.94
0.82
0.68
0.86
0.75
0.62
Max.
70
108
30
1.4
2
V
OFF
www.sg.com.tw
DD
+2.0
Dec.29, 2003
SG6849
Unit
ns
V
V
V
V
V
V
Unit
kHz
kHz
kHz
kHz
mA
%
V