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Электронный компонент: OM1325SMM

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3.5 - 21
3.5
Three Terminal, Precision Adjustable
Negative Voltage Regulator In Hermetic
Style Packages (LM137A)
4 11 R2
Supersedes 1 07 R1
1.5 AMP NEGATIVE ADJUSTABLE VOLTAGE
REGULATOR APPROVED TO DESC DRAWING 7703406
OM1325STM
OM1325N2M
OM1325NMM
OM1325NTM
OM1325SMM
OM1325NKM
FEATURES
Similar To Industry Standard LM137A
Approved To DESC Standardized Military Drawing Number 7703406
Built In Thermal Overload Protection
Short Circuit Current Limiting
Available In Six Package Styles
Maximum Output Voltage Tolerance Is Guaranteed to + 1%
DESCRIPTION
These three terminal negative regulators are supplied in hermetically sealed
packages. All protective features are designed into the circuit, including thermal
shutdown, current-limiting, and safe-area control. With heat sinking, these devices
can deliver up to 1.5 amps of output current. The LCC-20 device is limited to .5
amps. The unit also features output voltages that can be fixed from -1.2 volts to -37
volts using external resistors.
ABSOLUTE MAXIMUM RATINGS
T
c
@ 25C
Power Dissipation
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55C to + 150C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65C to + 150C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300C
Thermal Resistance, Junction to Case:
Case 2, LCC-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17C/W
Case U & M, TO-257 (Isol) and SMD-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2C/W
Case T&N, TO-257 (Non-Isol) and SMD-1 . . . . . . . . . . . . . . . . . . . . . . . 3.5C/W
Case Y, TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0C/W
Maximum Output Current:
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Recommended Operating Conditions:
Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1.2 to -37 VDC
Ambient Operating Temperature Range (T
A
). . . . . . . . . . . . . . . . - 55C to + 125C
Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4.25 to -41.25 VDC
Please see mechanical
outlines herein
3.5 - 22
3.5
OM1325NTM, OM1325STM, OM1325NKM, OM1325SMM, OM1325NMM, OM1325N2M
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Reference Voltage
V
REF
V
DIFF
= 3.0V, T
A
= 25C
-1.262
-1.238
V
DIFF
= 3.0V
-1.280
-1.220
V
V
DIFF
= 40V
-1.280
-1.220
Line Regulation
R
LINE
3.0 V
V
DIFF
40V, T
A
= 25C
-4.5
4.5
(Note 1)
3.0V
V
DIFF
40V
-13.8
13.8
mV
Load Regulation
R
LOAD
V
DIFF
=
5V, 8mA I
L
1.5A
-25
25
(Note 1)
V
DIFF
=
12V, 8mA I
L
1.5A, T
A
= 25C
-25
25
mV
V
DIFF
40V, 8mA I
L
1.5A, T
A
= 25C
-25
25
V
DIFF
=
40V, 8mA I
L
1.5A
-50
50
Thermal Regulation
V
RTH
V
in
= -14.6V, I
L
= 1.5A
-5
5
mV
P
d
= 20 Watts, t = 10 ms, T
A
= 25C
Ripple Rejection
R
N
f = 120 Hz, V
out
= V
ref
66
dB
(Note 2)
C
Adj
= 10 F
Adjustment Pin Current
I
Adj
V
DIFF
= 3.0V
100
V
DIFF
= 40V
100
A
Adjustment Pin
I
Adj
Current Change
(line)
3V
V
DIFF
40V
-5
5
A
I
Adj
(load)
V
DIFF
= 5V, 8mA I
L
1.5A
-5
5
A
Miminum Load Current
I
Lmin
V
DIFF
= 3.0V, V
out
= -1.4V (forced)
3.0
V
DIFF
= 10V, V
out
= -1.4V (forced)
3.0
mA
V
DIFF
= 40V, V
out
= -1.4V (forced)
5.0
Current Limit
I
CL
V
DIFF
5V
1.5
3.5
(Note 2)
V
DIFF
= 40V, T
A
= 25C
0.24
1.2
A
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The
denotes the specifications which apply over the full operating temperature range.
PART NUMBER DESIGNATOR
Standard Military Drawing Number
Omnirel Part Number
Omnirel Package Designation
7703406M
OM1325SMM
SMD-3
7703406U
OM1325STM
TO-257 (Isolated)
7703406T
OM1325NTM
TO-257 (non-Isolated)
7703406Y
OM1325NKM
TO-3
7703406N
OM1325NMM
SMD-1
77034062
OM1325N2M
LCC-20
ELECTRICAL CHARACTERISTICS
-55C T
A
125C, I
L
= 8mA (unless otherwise specified)
OM1325NTM, OM1325STM, OM1325NKM, OM1325SMM, OM1325NMM
3.5 - 23
3.5
Parameter
Symbol
Test Conditions
Min.
Max.
Unit
Reference Voltage
V
REF
V
DIFF
= 3.0V, T
A
= 25C
-1.262
-1.238
V
DIFF
= 3.0V
-1.280
-1.220
V
V
DIFF
= 40V
-1.280
-1.220
Line Regulation
R
LINE
3.0 V
V
DIFF
40V, T
A
= 25C
-4.5
4.5
(Note 1)
3.0V
V
DIFF
40V
-13.8
13.8
mV
Load Regulation
R
LOAD
V
DIFF
=
5V, 8mA I
L
200 mA
-25
25
(Note 1)
V
DIFF
=
15V, 8mA I
L
200m, AT
A
= 25C
-25
25
mV
V
DIFF
40V, 8mA I
L
150 mA, AT
A
= 25C
-25
25
V
DIFF
=
40V, 8mA I
L
50 mA
-50
50
Thermal Regulation
V
RTH
V
in
= -16.25V, I
L
=330 mA
-5
5
mV
P
d
=5 Watts, t = 10 ms, T
A
= 25C
Ripple Rejection
R
N
f = 120 Hz, V
out
= V
ref
66
dB
(Note 2)
C
Adj
= 10 F
Adjustment Pin Current
I
Adj
V
DIFF
= 3.0V
100
V
DIFF
= 40V
100
A
Adjustment Pin
I
Adj
Current Change
(line)
3V
V
DIFF
40V
-5
5
A
I
Adj
(load)
V
DIFF
= 5V, 8mA I
L
500 mA
-5
5
A
Miminum Load Current
I
Lmin
V
DIFF
= 3.0V, V
out
= -1.4V (forced)
3.0
V
DIFF
= 10V, V
out
= -1.4V (forced)
3.0
mA
V
DIFF
= 40V, V
out
= -1.4V (forced)
5.0
Current Limit
I
CL
V
DIFF
5V
0.5
1.8
(Note 2)
V
DIFF
= 40V, T
A
= 25C
0.15
0.65
A
Notes:
1. Load and Line Regulation are specified at a constant junction temperature. Pulse testing with low duty cycle is used.
Changes in output voltage due to heating effects must be taken into account separately.
2. If not tested, shall be guaranteed to the specified limits.
3. The
denotes the specifications which apply over the full operating temperature range.
OM1325NTM, OM1325STM, OM1325NKM, OM1325SMM, OM1325NMM, OM1325N2M
* C
in
is required if regulator is located more
than 4 inches from power supply filter. A 1 F
solid tantalum or 10 F aluminum electrolytic is
recommended.
** C
o
is necessary for stability. A 1 F solid
tantalum or 10 F aluminum electrolytic is
recommended.
V
out
= -1.25 V (1 +R
2
)
R
1
OM1325STM
1.0F
1.0F
-V
IN
-V
OUT
V
OUT
V
IN
I
Adj
I
PROG
C
IN
*
C
O
**
R
2
R
1
120
+
+
TYPICAL APPLICATION
ELECTRICAL CHARACTERISTICS
-55C T
A
125C, I
L
= 8mA (unless otherwise specified)
OM1325N2M
3.5
OM1325NTM, OM1325STM, OM1325NKM, OM1325SMM, OM1325NMM, OM1325N2M
OM1325SMM
Front View
Pin 1 - Adjust
Pin 2 - Output
Pin 3 - Input
Case - Isolated
OM1325STM
OM1325NTM
Isolated
Non-Isolated
Front View
Front View
Pin 1 - Adjust
Pin 1 - Adjust
Pin 2 - Input
Pin 2 - Input
Pin 3 - Output
Pin 3 - Output
Tab
- Isolated
Tab
- Input
OM1325NMM
Pin 1 - Adjust
Pin 2 - Output
Pin 3 - Input
OM1325NKM
Pin 1 - Adjust
Pin 2 - Output
Case - Input
OM1325N2M
Pin 1 V
OUT
Pin 11 VIN
Pin 2 V
OUT
(Sense)
Pin 12 NC
Pin 3 NC
Pin 13 NC
Pin 4 NC
Pin 14 NC
Pin 5 NC
Pin 15 NC
Pin 6 NC
Pin 16 ADJUST
Pin 7 NC
Pin 17 NC
Pin 8 NC
Pin 18 NC
Pin 9 NC
Pin 19 NC
Pin 10 NC
Pin 20 NC
For additional information please see the mechanical outline section.
.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
.425
.200
.100
.350 MIN.
.080
.160
.020
.020
.035 WIDE
FLAT 3 PLCS.
.115
.425
.140
.415
.157
.015
.140
.140
.075
.075
.062
.375
.030
MIN.
.075
(
.010)
TYP.
.040
.020 X45
REF.
.040 X45
REF (3 PL)
.010
.160
SQ. REF.
.065
.009 R.
20 PLCS.
3
1
19
18
14
4
13
9
.003
.050
TYP.
.050
(
.005)
TYP.
.085
.025 SQ.
TYP.
(
.003)
.025
TYP.
1 2 3
1
2
3
1
2
3
1.197
1.177
0.675
0.655
0.188 R.
MAX.
0.440
0.420
0.161
0.151
0.525 R.
MAX.
0.225
0.205
SEATING
PLANE
0.312
MIN.
0.450
0.250
0.043
0.038
2 PLCS.
0.135
MAX.
0.875
MAX.
1.53
REF.
2
1