SG5842JA Fairchild Semiconductor, SG5842JA Datasheet - Page 6
![no-image](/images/manufacturer_photos/0/2/252/fairchild_semiconductor_sml.jpg)
SG5842JA
Manufacturer Part Number
SG5842JA
Description
The highly integrated SG5842A/JA series of PWM controllers provides several features to enhance the performance of flyback converters
Manufacturer
Fairchild Semiconductor
Datasheet
1.SG5842JA.pdf
(15 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
SG5842JASZ
Manufacturer:
FAIRCHILD/仙童
Quantity:
20 000
© 2007 Fairchild Semiconductor Corporation
SG5842A/SG582JA • Rev. 1.4.3
Electrical Characteristics
V
V
RI Section
Oscillator Section
Feedback Input Section
Symbol
V
DD
DD
V
V
V
V
V
I
t
RI
RI
f
I
FB-OPEN
t
RI
V
V
DD-OVP
I
OSC-G
DD-OFF
DD-OP
D-OVP
DD-ST
f
t
FB-OLP
D-OLP
DD-ON
=15V and T
DD-OP
Z
DD-H
OSC
HOP
f
f
Section
A
FB-N
FB-G
DV
DT
NOR
MAX
MIN
FB
V
Continuously Operating Voltage
Start Threshold Voltage
Minimum Operation Voltage
Startup Current
Operating Supply Current
V
V
Debounce Time
Holding Current After OVP/OTP
Latchup
R
Maximum R
Minimum R
Normal PWM
Frequency
Hopping Period
Green-Mode Minimum Frequency
Frequency Variation vs. V
Deviation
Frequency Variation vs.
Temperature Deviation
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
DD
I
Operating Range
J
=T
Over-Voltage Protection
Over-Voltage Protection
A
= -40~125°C, unless otherwise noted.
I
I
Parameter
Value for Protection
Value for Protection
Center
Frequency
Hopping Range
DD
V
GATE=OPEN
R
V
R
R
SG5842JA Only
R
SG5842JA Only
R
V
T
FB Pin Open
R
R
R
V
A
DD
DD
DD
DD
I
I
I
I
I
I
I
I
=26KΩ
=26KΩ
=26KΩ
=26KΩ
=26KΩ
=26KΩ
=26KΩ
=26KΩ
=-20 to 85°C
=V
=15V, R
=5V
=11.5V to 20V
Conditions
DD-ON
6
–0.16V
I
=26KΩ,
Min.
1/4.5
15.5
23.2
40.0
15.5
±3.7
9.5
3.9
5.5
5.0
1.9
62
18
50
4
Continued on the following page…
V
FB-N
Typ.
1/4.0
16.5
10.5
24.2
52.5
±4.2
100
230
4.4
2.1
14
10
65
22
56
4
-0.5
Max.
1/3.5
17.5
11.5
25.2
65.0
36.0
±4.7
4.9
5.4
2.3
20
30
68
25
62
5
5
5
7
www.fairchildsemi.com
Units
KHz
KHz
V/V
mA
KΩ
KΩ
KΩ
KΩ
ms
µA
µA
ms
µs
%
%
V
V
V
V
V
V
V
V