OM1905STM OM1912STM OM1915STM
OM1905NTM OM1912NTM OM1915NTM
ISOLATED HERMETIC FIXED VOLTAGE NEGATIVE
REGULATORS APPROVED TO DESC DRAWINGS
Three Terminal, Fixed Voltage, 1.5 Amp
Precision Negative Regulators In Hermetic
JEDEC TO-257AA Package
FEATURES
•
•
•
•
•
•
•
Isolated Hermetic Package, JEDEC TO-257AA Outline
Output Voltages: -5V, -12V, -15V
Output Voltages Set Internally to ±1%
Built-In Thermal Overload Protection
Short Circuit Current Limiting
Product Is Also Available In Non-Isolated Package
Similar To Industry Standards 7905, 7912, 7915
DESCRIPTION
These three terminal negative regulators are supplied in a hermetically sealed metall
package whose outline is similar to the industry standard TO-220 plastic package. All
protective features are designed into the circuit, including thermal shutdown, current limiting
and safe-area control. With heat sinking, they can deliver over 1.5 amps of output current.
These units feature internally trimmed output voltages to ±1% of nominal voltage.
Standard voltages are -5V, -12V, -15V. These units are ideally suited for Military
applications where a hermetically sealed package is required.
PART NUMBER DESIGNATOR
Standard Military Drawing Number
Omnirel Part Number
5962-8874601 UX
OM1905STM
5962-8874601 TX
OM1905NTM
5962-8874701 UX
OM1912STM
5962-8874701 TX
OM1912NTM
5962-8874801 UX
OM1915STM
5962-8874801 TX
OM1915NTM
“U” = Isolated
“T” = Non-Isolated
3.3
4 11 R2
Supersedes 1 07 R1
3.3 - 93
OM1905STM/NTM - OM1915STM/NTM
ABSOLUTE MAXIMUM RATINGS @ 25°C
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -35 V
Operating Junction Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . .- 55°C to + 150°C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . - 65°C to + 150°C
Typical Power/Thermal Charateristics:
Rated Power @ 25° C T
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W
T
A
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3W
Thermal Resistance
q
JC
(Case U) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.2°C/W
q
JC
(Case T) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3.5°C/W
aa
q
JA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
ELECTRICAL CHARACTERISTICS -5
Volt
Parameter
Output Voltage
Symbol
V
OUT
V
IN
= -10V, I
o
= 500mA, -55°C T
A
125°C (unless otherwise specified)
Min.
-4.95
Max.
-5.05
-5.15
Unit
V
V
Test Conditions
T
A
= 25°C
V
IN
= -7.5V to -20V
I
O
= 5mA to 1.0, A, P < 15W
•
-4.85
Line Regulation
(Note 1)
(Note 4)
V
RLINE
V
IN
= -7.5V to -20V
12
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
•
V
IN
= -8.0V to -12V
25
5
•
Load Regulation
(Note 1)
I
O
= 250mA to 750 mA
V
RLOAD
I
O
= 5mA to 1.5 Amp
12
20
•
•
25
15
30
2.5
Standby Current Drain
I
SCD
DI
SCD
(Line)
DI
SCD
(Load)
V
DO
I
O (pk)
I
DS
DV
IN
DV
OUT
N
O
DV
OUT
Dt
DV
OUT
= 100mV, I
O
=
1.0A
T
A
= 25°C
V
IN
= -35V
I
O
= 5mA to 1000mA
V
IN
= -7.0V to -20V
Standby Current Drain
Change With Line
Standby Current Drain
Change With Load
Dropout Voltage
Peak Output Current
Short Circuit Current
(Note 2)
•
•
•
•
1.5
3.0
0.4
0.4
mA
2.5
3.3
1.2
V
A
A
A
dB
dB
•
f =120 Hz,
DV
IN
= -10V
(Note 3)
T
A
= 25°C, f =10 Hz to 100KHz
T
A
= 25°C, t = 1000 hrs.
63
2.8
3.3
Ripple Rejection
•
60
40
Output Noise Voltage
(Note 3)
Long Term Stability
(Note 3)
µV/V
RMS
75
mV
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. Short Circuit protection is only assured up to V
IN
= -35V.
3. If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range.
3.3 - 94
OM1905STM/NTM - OM1915NTM/STM
ELECTRICAL CHARACTERISTICS -12 Volt
Parameter
Output Voltage
Symbol
V
OUT
V
IN
= -19V, I
o
= 500mA, -55°C T
A
125°C (unless otherwise specified)
Min.
-11.88
Max.
-12.12
-12.36
Unit
V
V
Test Conditions
T
A
= 25°C
V
IN
= -14.5V to -27V
I
O
= 5mA to 1.0 A, P < 15W
Line Regulation
(Note 1)
(Note 4)
V
IN
= -16V to -22V
V
RLINE
V
IN
= -14.5V to -27V
20
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
•
-11.64
•
•
50
10
30
32
Load Regulation
(Note 1)
V
RLOAD
I
O
= 5mA to 1.5 Amp
•
I
O
= 250mA to 750 mA
60
16
•
Standby Current Drain
I
SCD
DI
SCD
(Line)
DI
SCD
(Load)
V
DO
I
O (pk)
I
DS
DV
IN
DV
OUT
Output Noise Voltage
(Note 3)
Long Term Stability
(Note 3)
DV
OUT
Dt
T
A
= 25°C, t = 1000 hrs.
N
O
DV
OUT
= 100mV, I
O
=
1.0A
T
A
= 25°C, I
O
= 5mA to 1A
V
IN
= -35V
I
O
= 5mA to 1000mA
V
IN
= -14.5V to -27V
30
3.5
Standby Current Drain
Change With Line
Standby Current Drain
Change With Load
Dropout Voltage
Peak Output Current
Short Circuit Current
(Note 2)
Ripple Rejection
•
•
•
•
1.5
4.0
0.8
0.5
mA
1.8
3.3
1.2
V
A
A
A
dB
dB
•
f =120 Hz,
DV
IN
= -10V
(Note 3)
T
A
= 25°C, f =10 Hz to 100KHz
56
2.8
•
53
40
µV/V
RMS
120
mV
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. Short Circuit protection is only assured up to V
IN
= -35V.
3. If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range.
4. Minimum load current for full line regulation = 5 mA.
MECHANICAL OUTLINE
.420
.410
.200
.190
.045
.035
.665
.645
.537
.527
.430
.410
.038 MAX.
CONNECTION DIAGRAM
3.3
4
.150
.140
.750
.500
.005
Case U
1 Ground
2 Input
3 Output
4 No Connection
1
2
3
Case T
1 Ground
2 Input
3 Output
4 Input
.035
.025
.100 TYP.
.120 TYP.
3.3 - 95
OM1905STM/NTM - OM1915STM/NTM
ELECTRICAL CHARACTERISTICS -15 Volt
Parameter
Output Voltage
Symbol
V
OUT
V
IN
= -23V, I
o
= 500mA, -55°C T
A
125°C (unless otherwise specified)
Min.
-14.85
Max.
-15.15
-15.45
Unit
V
V
Test Conditions
T
A
= 25°C
V
IN
= -17.5V to -30V
I
O
= 5mA to 1.0 A, P < 15 W
•
-14.55
Line Regulation
(Note 1)
(Note 4)
V
RLINE
V
IN
= -17.5V to -30V
25
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
mA
•
V
IN
= -20V to -26V
50
15
•
Load Regulation
(Note 1)
I
O
= 250mA to 750 mA
V
RLOAD
I
O
= 5mA to 1.5 Amp
25
35
•
•
75
21
45
6.0
Standby Current Drain
I
SCD
DI
SCD
(Line)
DI
SCD
(Load)
V
DO
I
O (pk)
I
DS
DV
IN
DV
OUT
N
O
DV
OUT
Dt
DV
OUT
= 100mV, I
O
=
1.0A
T
A
= 25°C
V
IN
= -35V
I
O
= 5mA to 1000 mA
V
IN
= -17.5V to -30V
Standby Current Drain
Change With Line
Standby Current Drain
Change With Load
Dropout Voltage
Peak Output Current
Short Circuit Current
(Note 2)
Ripple Rejection
•
•
•
•
1.5
6.5
0.8
0.5
mA
2.5
3.3
1.2
V
A
A
A
dB
dB
•
f =120 Hz,
DV
IN
= -10V
(Note 3)
T
A
= 25°C, f =10 Hz to 100KHz
T
A
= 25°C, t = 1000 hrs.
53
2.8
•
50
40
Output Noise Voltage
(Note 3)
Long Term Stability
(Note 3)
µV/V
RMS
150
mV
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. Short Circuit protection is only assured up to V
IN
= -35V.
3. If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range.
TYPICAL PERFORMANCE CHARACTERISTICS
PEAK OUTPUT
3.3
3.5
3
T
j
= -55°C
DROPOUT VOLTAGE
2.5
100
RIPPLE REJECTION
2
Output Current (A)
Output Current (A)
2.5
2
T
j
= 25°C
1.5
I
OUT
= 500mA
Ripple Rejection (dB)
I
OUT
= 1A
80
V
OUT
= 5V
60
1.5
1
T
j
= 150°C
1
I
OUT
= 0A
40
V
IN
- V = 8V
DC
+3.5V
rms
I
OUT
= 1A
T
j
= 25°C
0.5
DV
OUT
= 100MV
0.5
DV
OUT
= 100mV
20
0
0
5
10
15
20
25
30
35
0
-75 -50 -25
0
25 50 75 100 125 150
0
10
100
1k
10k
100k
Input To Output Differential (V)
Junction Temperature (°C)
Frequency (Hz)
205 Crawford Street, Leominster, MA 01453 USA (508) 534-5776 FAX (508) 537-4246
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