D2800D_15 Datasheet, PDF (1/10 Pages) International Rectifier – HIGH RELIABILITY, RADIATION TOLERANT, LOW POWER, DC-DC CONVERTER

PD-97819
HIGH RELIABILITY,
RADIATION TOLERANT,
LOW POWER,
DC-DC CONVERTER
D28XXD-SERIES
28V Input, Regulated Dual Outputs
Description
The D-Series of DC-DC converters are low power
radiation tolerant, high reliability devices designed for
hostile radiation environments such as those
encountered by geostationary earth orbit satellites, deep
space probes and communication systems. Features
include small size, high efficiency, low weight, and a
good tolerance to total ionizing dose, single event
effects, and environmental stresses such as temperature
extremes, mechanical shock, and vibration. All
components are fully derated to meet the requirements
of EEE-INST-002 and MIL-STD-1547B. Extensive
documentation including worst case analysis, radiation
susceptibility, thermal analysis, stress analysis, and
reliability analysis are available.
The D-Series converters have two outputs, each is
independently regulated. Two versions exist; One
version providing two positive outputs and one version
providing one negative and one positive output. The D-
Series converters incorporate a fixed frequency flyback
power converter and internal EMI filter that meets the
requirements for most major satellite power buses. The
converters can be remotely turned on and off via an
inhibit pin. Additional inhibit pins are also included to
control the outputs individually. This feature facilitates
turn-on outputs sequencing if desired. Each converter
is encased in a cold rolled steel hermetic package. The
package measures 1.80"L x 1.40"W x 0.42"H and
weighs less than 55 grams. The package utilizes rugged
ceramic feed-through copper pins and is hermetically
sealed using parallel seam welding. Two package
options are available. Please refer to page 9 for I/O
configurations.
Environmental screening includes temperature cycling,
constant acceleration, fine and gross leak, and burn-in
as specified by MIL-PRF-38534 for class H hybrids.
Features
n Total Dose > 50K Rad(Si)
n SEE > 40MeV.cm²/mg
n Low Weight < 55 grams
n 18V to 50V DC Input Range
n Up to 10W Output Power
n Independently Regulated Outputs:
±5V, ±12V and ±15V
n -55°C to +125°C Operating Temperature Range
n 100MΩ @ 100VDC Isolation
n Input Under-Voltage Protection
n Meets Conducted Emission Requirements
of Most Major Power Buses:
100Hz - 100KHz: 80dBµArms
100KHz - 10MHz: Log-linear Decrease
10MHz - 50MHz: 40dBµArms
n Short Circuit and Overload Protection
n Meets the Derating Requirments of
EEE-INST-002 and MIL-STD-1547B
n Synchronization Input / Output
n On/Off Control via Converters’s Inhibit Pin
and Individual Output’s Inhibit Pin
n High CS Damping
Applications
n Launch Vehicles
n Communication Systems
n Geostationary or Low Earth Orbit Satellites
Non-flight versions of the D-Series converters are
available for system development purposes. Variations
in electrical specifications and screening to meet custom
requirements can be accommodated.
www.irf.com
1
02/12/14