SG5842JA Fairchild Semiconductor, SG5842JA Datasheet - Page 6

• 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

© 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