SGP400 Fairchild Semiconductor, SGP400 Datasheet - Page 5

• Manufacturer Part Number: SGP400
• Description: Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
• Manufacturer: Fairchild Semiconductor

Low-Power Green-Mode PWM Flyback Power Controller without Secondary Feedback
Current Sense Section
Symbol
t
V
V
t
Oscillator Section
© System General Corp.
Version 1.0.1 (IAO33.0084.B0)
Symbol
F
t
F
V
V
S
F
F
PD
LEB
HOP
STHVA
STHFL
OSC
OSC-G
DV
DT
FB-N
FB-G
G
Parameter
Propagation Delay
Current Limiting Valley Threshold Voltage
Current Limiting Flat Threshold Voltage
Leading-Edge Blanking Time
Parameter
Frequency
Hopping Period
Green-Mode Frequency
Green-Mode Entry FB Voltage
Green-Mode Ending FB Voltage
Green-Mode Modulation Slope
Frequency Variation vs. V
Frequency Variation vs. Temperature Deviation
High-Line
Sense Voltage
V
LIMIT
Ramp
DD
T
Center Frequency
Hopping Range
Deviation
1
T
T
2
ON
Low-Line Sense
Voltage
T
OFF
Test Condition
V
V
V
V
V
V
Test Condition
V
T
DD
DD
DD
DD
DD
DD
A
DD
=-20 to 85°C
=18V
=15V
=10V
=18V
=15V
=10V
- 5 -
=10 to 20V
www.sg.com.tw • www.fairchildsemi.com
Min.
210
Min.
62
±4.1
4.1
19.5
2.4
40
Typ.
100
0.84
0.76
0.62
0.98
0.88
0.71
310
Typ.
65
±4.6
4.0
22.0
2.6
V
70
1.5
FB-N
-0.7
Product Specification
0V
V
V
STHVA
STHFL
September 24, 2007
Max.
150
410
Max.
68
±5.1
5.1
24.5
2.8
100
2
5.0
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SGP400
Unit
ns
V
V
V
V
V
V
ns
Unit
ms
KHz
Hz/mV
KHz
V
V
%
%