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Электронный компонент: OM2940-15SRM

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3.5 - 57
3.5
Isolated Hermetic Surface Mount Package
Three Terminal, Fixed Voltage, 1 Amp Low
Dropout Voltage Regulator
4 11 R0
SURFACE MOUNT 0.5 VOLT LOW DROPOUT
POSITIVE REGULATOR
FEATURES
Similar To Industry Standard LM2940
Dropout Voltage Typically 0.5V @ I
O
= 1A
Output Current Up To 1A
Reverse Battery Protection
Internal Short Circuit Protection
Isolated Hermetic Surface Mount Package
DESCRIPTION
These three terminal fixed voltage regulators are designed to provide 1.0A with high
efficiency. It has the ability to source 1A of output current with a typical dropout
voltage of .5V and a maximum of 1V over the entire temperature range. It is supplied
in a hermetic surface mount package and is ideally suited for Military applications
where small size and high reliability are required.
ABSOLUTE MAXIMUM RATINGS
@ 25C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Vdc
Output Voltag e . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V, +12V, +15 Vdc
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . - 55C to + 125C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C
Lead Temperature (Soldering 10 Seconds) . . . . . . . . . . . . . . . . . . . . . . . . . 300C
Thermal Resistance:
JC
(Isolated). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15C/W
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0A
a
OM2940-15SM
OM2940-05SM
OM2940-12SM
3.5 - 58
OM2940-05SM - OM2940-15SM
3.5
ELECTRICAL CHARACTERISTICS, P/N OM2940-12SM (12 Volts)
-55C
T
A
125C, V
IN
= 17 V, I
O
= 1 A, C
OUT
= 22 F (unless otherwise specified).
Parameter
Symbol
Test Conditions
Notes
Min.
Max.
Unit
Output Voltage
V
OUT
V
IN
= 17 V, I
OUT
= 5 mA
1
11.64
12.36
2
11.40
12.60
V
V
IN
= 13.6 V, I
OUT
= 5 mA
1
11.64
12.36
2
11.40
12.60
V
IN
= 14 V, I
OUT
= 5 mA
1
11.64
12.36
2
11.40
12.60
V
IN
= 26 V, I
OUT
= 5 mA
1
11.64
12.36
2
11.40
12.60
V
IN
= 17 V, I
OUT
= 1 A
1
11.64
12.36
2
11.40
12.60
V
IN
= 13.6 V, I
OUT
= 1 A
1
11.64
12.36
2
11.40
12.60
V
IN
= 13.6 V, I
OUT
= 50 mA
1
11.64
12.36
2
11.40
12.60
V
IN
= 17 V, I
OUT
= 50 mA
1
11.64
12.36
2
11.40
12.60
Maximum Line Transient
V
LT
V
O
13 V, R
O
= 100 , t = 20 ms
1, 2
40
V
Reverse Polarity
V
RIN
R
O
= 100
1, 2
-15
V
Input Voltage DC
Reverse Polarity
V
RIT
R
O
= 100 , t =20 ms
1, 2
-45
V
Input Voltage Transient
Quiescent Current
I
Q
V
IN
= 17 V, I
OUT
= 5 mA
12
0
mA
23
0
V
IN
= 14 V, I
OUT
= 5 mA
12
0
23
0
V
IN
= 26 V, I
OUT
= 5 mA
12
0
23
0
V
IN
= 17 V, I
OUT
= 1 A
17
0
21
2
0
Line Regulation
V
RLN
14 V
V
IN
26 V,
1
110
mV
I
OUT
= 5 mA
2
180
Load Regulation
V
RLD
V
IN
= 17 V, 50 mA
I
OUT
1 A
1
1
6
0
mV
2
2
2
0
Dropout Voltage
V
DO
I
OUT
= 1 A
1.
7
V
21
I
OUT
= 100 mA
11
5
0
mV
22
0
0
Output Noise Voltage
V
ON
V
IN
= 17 V, I
O
= 5 mA,
1
1000
V r
m
s
10 Hz - 100 Hz
Output Impedance
R
O
V
IN
= 17 V, I
OUT
= 100 mA dc
1, 2
1
and 20 mA ac, f
O
= 120 Hz
Short Circuit Current
I
OS
V
IN
= 17 V
1
1.2
A
2
1.0
Ripple Rejection
R
R
V
IN
= 17 V + 1 V rms,
1
5
2
dB
I
OUT
= 5 mA, f = 1 kHz
2
4
6
Notes:
1. T
A
= 25C
.
2. Over full operating temperature range.
ELECTRICAL CHARACTERISTICS, P
/
N
OM2940-5SM (5 Volts)
-55C
T
A
125C, V
IN
= 10 V, I
O
= 1 A, C
OUT
= 22 F (unless otherwise specified).
Parameter
Symbol
Test Conditions
Notes
Min.
Max.
Unit
Output Voltage
V
OUT
V
IN
= 10 V, I
OUT
= 5 mA
1
4.85
5.15
2
4.75
5.25
V
V
IN
= 6 V, I
OUT
= 5 mA
1
4.85
5.15
2
4.75
5.25
V
IN
= 7 V, I
OUT
= 5 mA
1
4.85
5.15
2
4.75
5.25
V
IN
= 26 V, I
OUT
= 5 mA
1
4.85
5.15
2
4.75
5.25
V
IN
= 10 V, I
OUT
= 1 A
1
4.85
5.15
2
4.75
5.25
V
IN
= 6 V, I
OUT
= 1 A
1
4.85
5.15
2
4.75
5.25
V
IN
= 6 V, I
OUT
= 50 mA
1
4.85
5.15
2
4.75
5.25
V
IN
= 10 V, I
OUT
= 50 mA
1
4.85
5.15
2
4.75
5.25
Maximum Line Transient
V
LT
V
O
6 V, R
O
= 100 , t = 20 ms
1, 2
40
V
Reverse Polarity
V
RIN
R
O
= 100
1, 2
-15
V
Input Voltage DC
Reverse Polarity
V
RIT
R
O
= 100 , t =20 ms
1, 2
-45
V
Input Voltage Transient
Quiescent Current
I
Q
V
IN
= 10 V, I
OUT
= 5 mA
12
0
mA
23
0
V
IN
= 7 V, I
OUT
= 5 mA
12
0
23
0
V
IN
= 26 V, I
OUT
= 5 mA
12
0
23
0
V
IN
= 10 V, I
OUT
= 1 A
17
0
2
120
Line Regulation
V
RLN
7 V
V
IN
26 V,
1
55
mV
I
OUT
= 5 mA
2
80
Load Regulation
V
RLD
V
IN
= 10 V, 50 mA
I
OUT
1 A
1
6
5
mV
2
120
Dropout Voltage
V
DO
I
OUT
= 1 A
1.
7
V
21
I
OUT
= 100 mA
1
150
mV
2
200
Output Noise Voltage
V
ON
V
IN
= 10 V, I
O
= 5 mA,
1, 2
700
V r
m
s
10 Hz - 100 Hz
Output Impedance
R
O
V
IN
= 10 V, I
OUT
= 100 mA dc
1, 2
1
and 20 mA ac, f
O
= 120 Hz
Short Circuit Current
I
OS
V
IN
= 10 V
1
1.2
A
2
1.0
Ripple Rejection
R
R
V
IN
= 10 V + 1 V rms,
1
6
0
dB
I
OUT
= 5 mA, f = 1 kHz
2
5
0
Notes:
1. T
A
= 25C
.
2. Over full operating temperature range.
3.5 - 59
OM2940-05SM - OM2940-15SM
3.5
ELECTRICAL CHARACTERISTICS, P/N OM2940-15SM (15 Volts)
-55C
T
A
125C, V
IN
= 20 V, I
O
= 1 A, C
OUT
= 22 F (unless otherwise specified).
Parameter
Symbol
Test Conditions
Notes
Min.
Max.
Unit
Output Voltage
V
OUT
V
IN
= 20 V, I
OUT
= 5 mA
1
14.55
15.45
2
14.25
15.75
V
V
IN
= 16.75 V, I
OUT
= 5 mA
1
14.55
15.45
2
14.25
15.75
V
IN
= 17 V, I
OUT
= 5 mA
1
14.55
15.45
2
14.25
15.75
V
IN
= 26 V, I
OUT
= 5 mA
1
14.55
15.45
2
14.25
15.75
V
IN
= 20 V, I
OUT
= 1 A
1
14.55
15.45
2
14.25
15.75
V
IN
= 16.75 V, I
OUT
= 1 A
1
14.55
15.45
2
14.25
15.75
V
IN
= 16.75 V, I
OUT
= 50 mA
1
14.55
15.45
2
14.25
15.75
V
IN
= 20 V, I
OUT
= 50 mA
1
14.55
15.45
2
14.25
15.75
Maximum Line Transient
V
LT
V
O
16 V, R
O
= 100 , t = 20 ms
1, 2
40
V
Reverse Polarity
V
RIN
R
O
= 100
1, 2
-15
V
Input Voltage DC
Reverse Polarity
V
RIT
R
O
= 100 , t =20 ms
1, 2
-45
V
Input Voltage Transient
Quiescent Current
I
Q
V
IN
= 20 V, I
OUT
= 5 mA
12
0
mA
23
0
V
IN
= 17 V, I
OUT
= 5 mA
12
0
23
0
V
IN
= 26 V, I
OUT
= 5 mA
12
0
23
0
V
IN
= 20 V, I
OUT
= 1 A
17
0
2
120
Line Regulation
V
RLN
17 V
V
IN
26 V,
1
125
mV
I
OUT
= 5 mA
2
350
Load Regulation
V
RLD
V
IN
= 20 V, 50 mA
I
OUT
1 A
1
200
mV
2
400
Dropout Voltage
V
DO
I
OUT
= 1 A
1.
7
V
21
I
OUT
= 100 mA
1
150
mV
2
200
Output Noise Voltage
V
ON
V
IN
= 20 V, I
O
= 5 mA,
1
1000
V r
m
s
10 Hz - 100 Hz
Output Impedance
R
O
V
IN
= 20 V, I
OUT
= 100 mA ac
1, 2
1
and 20 mA dc, f
O
= 120 Hz
Short Circuit Current
I
OS
V
IN
= 20 V
1
1.2
A
2
1.0
Ripple Rejection
R
R
V
IN
= 20 V + 1 V rms,
1
4
8
dB
I
OUT
= 5 mA, f = 1 kHz
2
4
2
Notes:
1. T
A
= 25C
.
2. Over full operating temperature range.
MECHANICAL OUTLINE
PIN CONNECTION
.450
SQ.
.300
4 PLCS.
.050
24 PLCS.
.305
SQ.
.02 x 45
.090
MAX.
.05 X 45
MAX. 3 PLCS.
.009 R.
28 PLCS.
.035
PIN 1
PIN 28
BOTTOM
TOP
SIDE
4
1
26
12
18
Pin 1, 15 thru 28:
IN
Pin 2, 3, 13, and 14:
GND
Pin 4 thru 12:
OUT
OM2940-05SM - OM2940-15SM
3.5
TYPICAL APPLICATIONS
0.9
Inout - Output Differential (V)
0
Output Current (mA)
Dropout Voltage
T
J
= 25C
200
1000
800
600
400
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0
0.1
1.0
Dropout Voltage (V)
-40
Temperature (C)
Dropout Voltage
vs Temperature
1 A
0
160
120
40
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
80
500 mA
100 mA
5.10
Output Voltage (5V)
-40
Temperature (C)
Output Voltage
vs Temperature
0
160
120
40
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
80
30
-10
Time (s)
Line Transient Response
0
0V
20
10
0
-10
-20
-30
3V
Output Voltage
Deviation (mV)
Input Voltage
Change (V)
10
20
30
40 50
60
200
Quiescent Current (mA)
0
Input Voltage (V)
Quiescent Current
1 A
180
160
140
120
100
80
60
40
20
0
500 mA
100 mA
5
10
15
20 25
30 35
50
Quiescent Current (mA)
Temperature (C)
Quiescent Current
vs Temperature
V
IN
= V
OUT
+5V
0
40
30
20
10
-40
0
160
120
40
80
1 A
500 mA
10 mA
50
Quiescent Current (mA)
0
Load Current (A)
Quiescent Current
0.2
1.0
0.8
0.4
40
30
20
10
0
0.6
V
IN
= 14V
V
OUT
= 5V
T
J
= 25C
95
Ripple Rejection (dB)
1
Frequency (Hz)
Ripple Rejection
10
100k
10k
100
35
1k
1M
45
55
65
75
85
V
IN
= 10V
C
OUT
= 22F
I
OUT
= 10mA
V
OUT
=5V
0.5
-10
Time (s)
Load Transient Response
0
40
30
10
0
20
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
1.0
0.5
Output Voltage
Deviation (V)
Load Current
Change (A)
V
IN
= 10V, C
OUT
= 22F
T
J
= 25C, V
OUT
=5V