Daewoo CM 1805 NTM Service Manual
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3.3 - 57
3.3
Three T erminal, Fixed V oltage, 1.5 Amp
Precision Positive Regulators In Hermetic
JEDEC TO-257AA P ackage
4 11 R2
Supersedes 1 07 R1
ISOLATED HERMETIC TO-257AA FIXED VOLTAGE
REGULATORS APPROVED TO DESC DRAWINGS
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 7805, 7812, 7815
DESCRIPTION
These three terminal positive regulators are supplied in a hermetically sealed metal
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
±1% of nominal voltage. 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
5962-8778201 UX OM1805STM
5962-8778201 TX OM1805NTM
5962-8777601 UX OM1812STM
5962-8777601 TX OM1812NTM
5962-8855301 UX OM1815STM
5962-8855301 TX OM1815NTM
“U” = Isolated
“T” = Non-Isolated
OM1815STM
OM1815NTM
OM1812STM
OM1812NTM
OM1805STM
OM1805NTM
3.3 - 58
3.3
OM1805STM/NTM - OM1815STM/NTM
ELECTRICAL CHARACTERISTICS 5 Volt V
IN
= 10V, I
o
= 500mA, -55°C T
A
125°C (unless otherwise specified)
Parameter Symbol Test Conditions Min. Max. Unit
Output Voltage V
OUT
T
A
= 25°C 4.92 5.08 V
V
IN
= 7.5V to 20V • 4.85 5.15 V
I
O
= 5mA to 1.0 A, P < 15W
Line Regulation V
RLINE
V
IN
= 7.5V to 20V 5 mV
(Note 1)
• 12 mV
(Note 4) V
IN
= 8.0V to 12V 4 mV
• 10 mV
Load Regulation V
RLOAD
I
O
= 5mA to 1.5 Amp 12 mV
(Note 1) I
O
= 5mA to 1.0 Amp • 25 mV
I
O
= 250mA to 750 mA 6 mV
• 15 mV
Standby Current Drain I
SCD
6mA
• 6.5 mA
Standby Current Drain DI
SCD
V
IN
= 7.5V to 20V • 0.8 mA
Change With Line (Line)
Standby Current Drain DI
SCD
I
O
= 5mA to 1000mA • 0.5 mA
Change With Load (Load)
Dropout Voltage V
DO
T
A
= 25°C, DV
OUT
= 100mV, I
O
= 1.0A 2.5 V
Peak Output Current I
O (pk)
T
A
= 25°C 1.5 3.3 A
Short Circuit Current I
DS
V
IN
= 35V 1.2 A
(Note 2)
• 2.8 A
Ripple Rejection DV
IN
f =120 Hz, DV
IN
= 10V 68 dB
DV
OUT
(Note 3) • 60 dB
Output Noise Voltage N
O
T
A
= 25°C, f =10 Hz to 100KHz 40 µV/V
(Note 3) RMS
Long Term Stability DV
OUT
T
A
= 25°C, t = 1000 hrs. 75 mV
(Note 3) Dt
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 = 5.0 mA.
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
q
JA
Case T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42°C/W
a
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