Specifications
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Input:
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105-125 Vac, 55-65 Hz or 380-420 Hz, single phase.
Units may be operated down to 47 Hz with 20% derating.
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Output (nominal):
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5, 12, 15, 24, 28 Vdc (single output).
± 12, ±15 Vdc (dual output).
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Efficiency:
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30% typical for 5V; 50% for 28V.
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Line Regulation:
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Within 0.05% for change from low line to high line
with load constant.
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Load Regulation:
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Within 0.1% for change from no load to full load
with line constant.
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Tracking Accuracy:
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LLV Models. The negative output will track the positive
output within 75 mV for all rated conditions, when the positive
output is set to nominal ±0.1 Vdc.
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Pard (Noise and Ripple):
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1 mV rms or 5 mV P-P at 25 MHz bandwidth.
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Isolation Voltage:
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500 Vdc, input to output; 500 Vdc, input to case;
500 Vdc, output to case.
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Insulation Resistance:
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50 Mohms between input and output, input and case,
output and case, when measured at 50 Vdc.
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Polarity:
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Inputs and outputs are isolated. Either positive
or negative side of output may be grounded.
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Temperature Range:
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Operating: 0°C to +71°C maximum, at center of the
baseplate -40°C to +85°C with "T" option. Storage: -55°C
to +85°C, ambient.
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Temperature Coefficient:
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0.015% / °C maximum.
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Input Transient Protection:
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Unit will withstand 143.8 Vac for 0.3 second, in
accordance with MIL-STD-1399, Section 103 .
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Load Transient Response:
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Output voltage returns to regulation limits within
100 microsecond for auxiliary outputs after 50% change in load
current.
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Load Transient Overshoot:
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2% maximum from nominal voltage set point.
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Short Circuit Protection:
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Completely protected against a short circuit of
any duration. Output automatically restores to normal when overload
is removed.
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Remote Sensing:
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Regulator monitors voltage directly at the load
using extra "sensing" leads and compensates for a dc
voltage drop up to 0.4 volt in the load leads (single output models
only).
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EMI:
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Units were designed and built to minimize EMI/EMC
emissions, and comply with the requirements of MIL-STD-461A by
virtue of their topology, construction and enclosure.
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Reliability:
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MTBF is calculated per MIL-HDBK-217D at 50°C baseplate
temperature with maximum operating input voltage and maximum rated
output power. The MTBF for LV5DE20-1 at ground benign environment
is 68,987 hours.
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Environment:
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Encapsulated and hermetically sealed to meet the
environmental requirements of MIL-STD-810C, MIL-S-901C, and MIL-E-5400P.
Special encapsulation is standard and enables all units to withstand
60 g's shock, 50 g's acceleration and 30 g's vibration.
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Connectors:
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Standard unit is provided with an input solder pin
header and an output "hermetic seal" stud-type connector.
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Weight (Lbs.):
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3.8 - 13.9
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Size (inches):
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See Selection
Chart (PDF)
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Options
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A Option:
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Special Connectors. A military-type
hermetically sealed connector is provided in place of our standard
input header. To order, replace the "E" in the model
with "A".
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H Option:
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Wide Input Voltage. Changes
input specifications to: 210 to 250 Vac, 55 to 65 Hz, single phase.
Units may be operated 47 to 54 Hz with the "H" option.
To order, add an "H" after the "E" in the model
number.
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L Option:
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Remote Turn On/Off. Provides isolated
terminals to turn output on/off with TTL logic signal. To order,
add "L" after "E" in the model number. Logic
1 (5 Vdc) will be required to operate unit with this option.
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-OT Option:
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Over Temperature Protection. Turns
off input power when conduction surfaces exceed safe limits. To
order, add "-OT" to the end of the model number.
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T Option:
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Wider Operating Temperature. -40°C
to +85°C. Case size may increase. To order, add "T" after "E" in
the model number.
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-ER Option:
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Provides increased reliability by
using higher levels of military grade components. To order, add "-ER" after
the model number.
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-1 Option:
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Internal Overvoltage Protection.
Provides a crowbar internal OVP. Input must be recycled to restore
output. To order, add "-1" to the end of the model number.
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-2 Option:
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Output Voltage Adjustment. Provides
externally accessible (screwdriver adjustment) potentiometer to
adjust output voltages over speccified range. To order, add "-2" to
the end of the model number.
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LV
Series