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OM1323SMM OM1323NMM OM1323STM
OM1323NKM OM1323NTM OM1323N2M
1.5 AMP NEGATIVE ADJUSTABLE VOLTAGE
REGULATOR APPROVED TO DESC DRAWING 7703404
Please see mechanical
outlines herein
Three Terminal, Precision Adjustable
Negative Voltage Regulator In Hermetic
Style Packages (LM137HV)
FEATURES
• Similar To Industry Standard LM137HV
• Approved To DESC Standardized Military Drawing Number 7703404
• Built In Thermal Overload Protection
• Short Circuit Current Limiting
• Available In Six Package Styles
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 -47
volts using external resistors.
ABSOLUTE MAXIMUM RATINGS Tc @ 25°C
Power Dissipation
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.1 W
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 W
Input - Output Voltage Differential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . - 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Lead Temperature (Soldering 10 seconds) . . . . . . . . . . . . . . . . . . . . . . . . . . . 300°C
Thermal Resistance, Junction to Case:
Case 2, LCC-20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17°C/W
Case U & M, TO-257 (Isol) and SMD-3 . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W
Case T&N, TO-257 (Non-Isol) and SMD-1 . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
Case Y, TO-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.0°C/W
Maximum Output Current:
Case 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 A
Case-All Others. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A
Recommended Operating Conditions:
Output Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-1.2 to -47 VDC
Ambient Operating Temperature Range (TA). . . . . . . . . . . . . . . . - 55°C to + 125°C
Input Voltage Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -4.25 to -51.25 VDC
4 11 R2
Supersedes 1 07 R1
3.5 - 13
3.5
OM1323NTM, OM1323STM, OM1323NKM, OM1323SMM, OM1323NMM, OM1323N2M
ELECTRICAL CHARACTERISTICS -55°C ≤ TA ≤ 125°C, IL = 8mA (unless otherwise specified)
OM1323NTM, OM1323STM, OM1323NKM, OM1323SMM, OM1323NMM
Parameter
Symbol
Test Conditions
Min. Max. Unit
Reference Voltage
Line Regulation
(Note 1)
Load Regulation
(Note 1)
VREF
RLINE
RLOAD
VDIFF = 3.0V, TA = 25°C
VDIFF = 3.0V
VDIFF = 50V, TA = 25°C
VDIFF = 50V
3.0 V ≤ VDIFF ≤ 40V, TA = 25°C
VDIFF = 5.0V, 8mA ≤ IL ≤ 110mA
TA = 25°C
VDIFF = 5V, 8mA ≤ IL ≤ 1.5A, TA = 25°C
•
•
•
•
•
-1.275
-1.30
-1.275
-1.30
-10
-25
-25
-25
-45
-1.225
-1.20
-1.225
-1.20
10
25
25
25
45
V
mV
mV
Thermal Regulation
VRTH
Vin = -14.6V, IL = 1.5A
-5 5 mV
Ripple Rejection
Pd = 20 Watts, t = 10 ms, TA = 25°C
RN
f = 120 Hz, Vout = Vref
• 66
dB
(Note 2)
CAdj = 10 µF
Adjustment Pin Current
IAdj
VDIFF = 3.0V
•
100
VDIFF = 40V
•
100 µA
VDIFF ≤ 50V
•
100 µA
Adjustment Pin
∆IAdj
VDIFF = 5V, 8mA ≤ IL ≤ 1.5A
• -5
5
Current Change
3 V ≤ VDIFF ≤ 50V
• -6
6 µA
Miminum Load Current
ILmin
VDIFF = 3.0V, Vout = -1.4V (forced)
•
3.0
VDIFF = 10V, Vout = -1.4V (forced)
•
3.0 mA
VDIFF = 40V, Vout = -1.4V (forced)
•
5.0
VDIFF = 50V, Vout = -1.4V (forced)
•
5.0
Current Limit
ICL
VDIFF ≤ 5V
• 1.5
3.5
(Note 2)
VDIFF = 50V, TA = 25°C
0.2 1.0
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.
3.5
PART NUMBER DESIGNATOR
Standard Military Drawing Number
Omnirel Part Number
7703404M
7703404U
7703404T
7703404Y
7703404N
77034042
OM1323SMM
OM1323STM
OM1323NTM
OM1323NKM
OM1323NMM
OM1323N2M
Omnirel Package Designation
SMD-3
TO-257 (Isolated)
TO-257 (non-Isolated)
TO-3
SMD-1
LCC-20
3.5 - 14
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