sg5842jasz-f116 Fairchild Semiconductor, sg5842jasz-f116 Datasheet - Page 5

• Manufacturer Part Number: sg5842jasz-f116
• Description: Sg5842 ? Highly Integrated Green-mode Pwm Controller
• Manufacturer: Fairchild Semiconductor

Highly Integrated Green-Mode PWM Controller
Oscillator Section
Symbol
F
t
F
F
F
Feedback Input Section
Symbol
A
Z
V
V
t
V
V
Current Sense Section
Symbol
Z
V
V
DCY
t
t
© System General Corp.
Version 1.4.2 (IAO33.0026.B6)
HOP
D-OLP
PD
LEB
OSC
OSC-G
DV
DT
FB
SENSE
V
FB-OPEN
FB-OLP
FB-N
FB-G
STHFL
STHVA
SAW
Parameter
Normal PWM Frequency
Hopping Period
Green-Mode Minimum Frequency
Frequency Variation vs. V
Frequency Variation vs. Temperature Deviation
Parameter
Parameter
Input Impedance
Current Limit Flatten Threshold Voltage
Current Limit Valley Threshold Voltage
Duty Cycle of SAW Limit
Propagation Delay to GATE Output
Leading-Edge Blanking Time
FB Input to Current Comparator Attenuation
Input Impedance
Output High Voltage
FB Open-Loop Trigger Level
FB Open-Loop Protection Delay
Green-Mode Entry FB Voltage
Green-Mode Ending FB Voltage
DD
Center Frequency
Hopping Range
Deviation
- 5 -
Test Condition
FB pin open
R
R
R
Test Condition
R
R
R
R
V
T
Test Condition
V
Maximum Duty Cycle
R
R
A
I
I
I
I
DD
I
I
I
STHFL
I
I
=26KΩ
=26KΩ
=26KΩ
=26KΩ
=26KΩ (5842JA only)
=26KΩ (5842JA only)
=26KΩ
=26KΩ
=26KΩ
=-20 to 85°C
=11.5V to 20V
–V
STHVA
www.sg.com.tw • www.fairchildsemi.com
Min.
62
±3.7
3.9
18
Min.
0.85
200
Min.
1/4.5
4
5.5
5.0
50
1.9
Typ.
65
±4.2
4.4
22
Typ.
12
0.90
0.22
45
150
270
Typ.
1/4.0
56
2.1
V
Product Specification
FB-N
-0.5
Max.
68
±4.7
4.9
25
5
5
Max.
0.95
200
350
October 30, 2007
Max.
1/3.5
7
5.4
62
2.3
SG5842A/JA
Unit
KΩ
V
V
%
ns
ns
Unit
KHz
ms
KHz
%
%
Unit
V/V
KΩ
V
V
ms
V
V