GHP2805S Datasheet, PDF (1/12 Pages) International Rectifier – HYBRID-HIGH RELIABILITY RADIATION HARDENED DC-DC CONVERTER

HYBRID-HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTER
PD-97864
GHP-SERIES
28V Input, Single/Dual Output
Description
The GHP-Series of DC-DC converters are radiation
hardened, high reliability converters specifically designed in
response to the need for moderate power, high efficiency
and well regulated output required by the modern day space
design applications. Their small size and low weight make
them ideal for applications such as geostationary earth orbit
satellites and deep space probes. They exhibit a high toler-
ance to total ionizing dose, single event effects and environ-
mental stresses such as temperature extremes, mechanical
shock, and vibration.
The converters incorporate a fixed frequency single ended
forward topology with magnetic feedback and an internal
EMI filter that utilizes multilayer ceramic capacitors that are
subjected to extensive lot screening for optimum reliability.
By using two stage filtering these converters produce low
input and output noise. External inhibit and synchronization
input and output allow these converters to be easily incorpo-
rated into larger power systems. They are enclosed in a
hermetic 3" x 2" x 0.475" package constructed of an Alumi-
num-Silicon-Carbide (AlSiC) base and an Alloy 48 ring
frame and they weigh less than 110 grams. The package
utilizes rugged ceramic feed-through copper core pins and
is sealed using parallel seam welding.
Manufactured in a facility fully qualified to MIL-PRF-38534,
these converters are fabricated utilizing DLA Land and
Maritime qualified processes. For available screening
options, refer to device screening table in the data sheet.
Non-flight versions of the GHP-Series converters are
available for system development purposes. Variations in
electrical specifications and screening to meet custom
requirements can be accommodated.
GHP
Features
 Total Dose > 100 kRads(Si)
 SEE Hardened to LET up to 82 MeV.cm²/mg
 Low Weight < 110 grams
 Low Input & Output Noise
 Magnetically Coupled Feedback
 V to 40V DC Input Range
 Up to 120W Output Power
 Single and Dual Output Models Include
3.3, 5, 6, 12, 15 and ±5, ±12 and ±15V
 High Efficiency - to 87%
 -55°C to +125°C Operating Temperature Range
 100M @ 500VDC Isolation
 Under-Voltage Lockout
 Short Circuit and Overload Protection
 Adjustable Output with an External Resistor
 Remote Sense on Single Output Models
 Synchronization Input and Output
 External Inhibit
 > 3.3 Million Hours MTBF
Applications
 Geostationary Earth Orbit Satellites (GEO)
 Deep Space Satellites / Probes
 Strategic Weapons and Communication System
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2017-04-19