DVFL2800D Series
HIGH RELIABILITY HYBRID
DC-DC CONVERTERS
DESCRIPTION
FEATURES
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High Reliability
The DVFL series of high reliability DC-DC converters
is operable over the full military (-55 °C to +125 °C)
temperature range with no power derating. Unique
to the DVFL series are robust and effective input and
output filters which provide dramatically reduced
input and output noise performance when compared
to other manufacturers competing devices.
Operating at a nominal fixed frequency of 500 kHz,
these regulated, isolated units utilize a high speed
magnetic feedback design and well controlled
undervoltage lockout circuitry to eliminate slow start-
up problems. The current sharing function allows a
maximum of five units to be connected in parallel to
boost the total output power to 5 times. The output
voltage is trimmable up to +10% or down –20%.
Parallel Up to 5 Units With Current Sharing
Output Voltage Trim Up +10% or Down –20%
Wide Input Voltage Range: 16 to 40 Volts per
MIL-STD-704
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Up to 120 Watts Output Power
Fault Tolerant Magnetic Feedback Circuit
NO Use of Optoisolators
Undervoltage Lockout
Indefinite Short Circuit Protection
Current Limit Protection
Industry Standard Pinout
Input Transient Voltage: 50 Volts for 1 second
Precision Seam Welded Hermetic Package
High Power Density: > 80 W/in3
Custom Versions Available
These converters are designed and manufactured in
a facility qualified to ISO9001 and certified to MIL-
PRF-38534 and MIL-STD-883.
Additional Environmental Screening Available
Meets MIL-STD-461 Revisions C, D, E and F
EMC Requirements When Used With VPT’s
EMI Filters
This product may incorporate one or more of the
following U.S. patents:
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MIL-PRF-38534 Element Evaluated
Components
5,784,266
5,790,389
5,963,438
5,999,433
6,005,780
6,084,792
6,118,673
Space Applications should consider VPT’s “S”
Series of Radiation Tolerant Power Conversion
Devices. Contact VPT for details.
Figure 1 – DVFL2800D DC-DC Converter
(Exact marking may differ from that shown)
Sales Information:
Phone: (425) 353-3010
Fax: (425) 353-4030
E-mail: vptsales@vptpower.com
http://www.vptpower.com
DVFL2800D-11.0
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