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Электронный компонент: OM2940-12STM

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3.3 - 97
3.3
Three Terminal, Fixed Voltage, 1 Amp
Low Dropout Voltage Regulator In
Hermetic JEDEC TO-257AA Package
4 11 R1
Supersedes 3 02 R0
0.5 VOLT LOW DROPOUT POSITIVE FIXED VOLTAGE
REGULATOR APPROVED TO DESC DRAWING
FEATURES
Similar To Industry Standard LM2940
Approved To DESC Standardized Military Drawing
Dropout Voltage Typically 0.5 V @ I
O
= 1 A
Output Current in Excess of 1 A
Reverse Battery Protection
Internal Short Circuit Protection
Isolated Hermetic 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 the hermetic TO-257 package and is ideally suited for Military applications where
small size and high reliability is required.
ABSOLUTE MAXIMUM RATINGS
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26Vdc
Output Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V, +12V, +15Vdc
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . - 55C to + 125C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C
Thermal Resistance:
q
JC
(Isolated) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W
q
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42C/W
Maximum Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.3 A
OM2940STM
PART NUMBER DESIGNATOR
Standard Military Drawing Number
Omnirel Part Number
5962-8958710MUX
OM2940-5STM
5962-9088401MUX
OM2940-12STM
5962-9088501MUX
OM2940-15STM
3.3 - 98
3.3
OM2940STM
ELECTRICAL CHARACTERISTICS, P/N OM2940-12 (12 Volt)
Test Conditions are -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
1
15
mA
2
20
V
IN
= 14 V, I
OUT
= 5 mA
1
15
2
20
V
IN
= 26 V, I
OUT
= 5 mA
1
15
2
20
V
IN
= 17 V, I
OUT
= 1 A
1
50
2
60
Line Regulation
V
RLN
14 V V
IN
26 V,
1
75
mV
I
OUT
= 5 mA
2
120
Load Regulation
V
RLD
V
IN
= 17 V, 50 mA I
OUT
1 A
1
120
mV
2
190
Dropout Voltage
V
DO
I
OUT
= 1 A
1
.7
V
2
1
I
OUT
= 100 mA
1
150
mV
2
200
Output Noise Voltage
V
ON
V
IN
= 17 V, I
O
= 5 mA,
1
1000
V rms
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
1.6
A
2
1.3
Ripple Rejection
R
R
V
IN
= 17 V + 1 V rms,
1
52
dB
I
OUT
= 5 mA, f = 1 kHz
2
46
Notes:
1. T
A
= 25C
.
2. Over full operating temperature range.
ELECTRICAL CHARACTERISTICS, P/N OM2940-5 (5 Volt)
Test Conditions are -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
1
15
mA
2
20
V
IN
= 7 V, I
OUT
= 5 mA
1
15
2
20
V
IN
= 26 V, I
OUT
= 5 mA
1
15
2
20
V
IN
= 10 V, I
OUT
= 1 A
1
50
2
100
Line Regulation
V
RLN
7 V V
IN
26 V,
1
40
mV
I
OUT
= 5 mA
2
50
Load Regulation
V
RLD
V
IN
= 10 V, 50 mA I
OUT
1 A
1
50
mV
2
100
Dropout Voltage
V
DO
I
OUT
= 1 A
1
.7
V
2
1
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 rms
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
1.5
A
2
1.3
Ripple Rejection
R
R
V
IN
= 10 V + 1 V rms,
1
60
dB
I
OUT
= 5 mA, f = 1 kHz
2
50
Notes:
1. T
A
= 25C
.
2. Over full operating temperature range.
3.3 - 99
3.3
OM2940STM
ELECTRICAL CHARACTERISTICS, P/N OM2940-15 (15Volt)
Test Conditions are -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
1
15
mA
2
20
V
IN
= 17 V, I
OUT
= 5 mA
1
15
2
20
V
IN
= 26 V, I
OUT
= 5 mA
1
15
2
20
V
IN
= 20 V, I
OUT
= 1 A
1
50
2
60
Line Regulation
V
RLN
17 V V
IN
26 V,
1
95
mV
I
OUT
= 5 mA
2
150
Load Regulation
V
RLD
V
IN
= 20 V, 50 mA I
OUT
1 A
1
150
mV
2
240
Dropout Voltage
V
DO
I
OUT
= 1 A
1
.7
V
2
1
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 rms
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
1.6
A
2
1.3
Ripple Rejection
R
R
V
IN
= 20 V + 1 V rms,
1
48
dB
I
OUT
= 5 mA, f = 1 kHz
2
42
Notes:
1. T
A
= 25C
.
2. Over full operating temperature range.
1
2
3
Tab
Pin 1: V
IN
Pin 2: Gnd
Pin 3: V
OUT
Tab:
Isolated
PIN CONNECTION
.430
.410
.200
.190
.038 MAX.
.005
.120 TYP.
.537
.527
.665
.645
.420
.410
.150
.140
.750
.500
.100 TYP.
.035
.025
.045
.035
MECHANICAL OUTLINE
NOTES
 Case is metal/hermetically sealed
Isolated Tab
Front View
3.3
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
TYPICAL APPLICATIONS
OM2940STM
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