SPX2931 Просмотр технического описания (PDF) - Signal Processing Technologies
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SPX2931 Datasheet PDF : 7 Pages
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TYPICAL CHARACTERISTICS
QUIESCENT CURRENT
25
20
15
10
~~
3
2
~~
IO = 50mA
1
IO = 0mA
0
-40
0
40
80
120
JUNCTION TEMPERATURE (ºC)
DROPOUT VOLTAGE
0.6
0.5
0.4
IO = 100mA
0.3
0.2
IO = 50mA
IO = 10mA
0.1
0
0
40
80
120
JUNCTION TEMPERATURE (ºC)
LOW VOLTAGE BEHAVIOR
6.0
LM2931 5.0
IO = 100 mA
5.0
4.0
3.0
2.0
1.0
2.0
3.0 4.0 5.0 6.0
INPUT VOLTAGE (V)
MAXIMUM POWER DISSIPATION (SO-
8)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
0
5 10 15 20 25 30
AMBIENT TEMPERATURE (ºC)
QUIESCENT CURRENT
30
VIN = 14V
25
20
15
10
5
0
0
30
60
90
OUTPUT CURRENT (mA)
DROPOUT VOLTAGE
0.6
0.5
0.4
0.3
0.2
0.1
0
0
50
100
OUTPUT CURRENT (mA)
MAXIMUM POWER DISSIPATION (TO-220)
22
INFINITE HEAT SINK
20
18
16
14
12
10 ºC/W HEAT SINK
10
8
6
4
NO HEAT SINK
2
0
0 10 20 30 40 50 60 70 80 90 100
AMBIENT TEMPERATURE (ºC)
MAXIMUM POWER DISSIPATION
10 LM2931-
5.0
IO = 10mA
1
0.1
0.01
0
30 60
90 120 150
FREQUENCY (Hz)
SPX2931
1.30
1.28
REFERENCE VOLTAGE
LM2931CT ADJUSTABLE
1.26
1.24
1.22
1.20
1.18
1.16
1.14
1.12
1.10
0 3 6 9 12 15 18 21 24
OUTPUT VOLTAGE (V)
PEAK OUTPUT CURRENT
800
500
TJ = 25ºC
400
TJ = 85ºC
300
TJ = -40ºC
200
100
0
0
10
20
30
INPUT VOLTAGE (V)
MAXIMUM POWER DISSIPATION (TO-92)
1.0
0.9
0.8
0.7
0.6
0.125" LEAD LENGTH
0.5
FROM PC BOARD
0.4
0.4" LENGTH
0.3
FROMPC BOARD
0.2
0.1
0
0 10 20 30 40 50 60 70 80 90
AMBIENT TEMPERATURE (ºC)
OPERATION DURING LOAD DUMP
70
60
50
40
30
20
10
0 ~~
6
CO = 100µF
~~
RL = 500W
4
2
0
-2
-100 0
100 200 300 400 500
TIME (ms)
Rev. 10/24/00
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