M3G700512T Datasheet, PDF (1/12 Pages) International Rectifier – HYBRID-HIGH RELIABILITY RADIATION HARDENED DC-DC CONVERTER

HYBRID-HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTER
PD-94533P
M3G-SERIES
70V Input, Triple Output
Description
The M3G-Series of DC-DC converters are radiation hardened,
high reliability converters designed for extended operation
in hostile environments. 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
tolerance to total ionizing dose, single event effects and
environmental 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 incorporated into
larger power systems. They are enclosed in a hermetic
3" x 2" x 0.475" package constructed of an Aluminum-
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 M3G-Series converters are available
for system development purposes. Variations in electrical
specifications and screening to meet custom requirements can
be accommodated.
M3G
Features
 Total Dose > 200 kRads(Si)
typically usable to > 300 kRads(Si)
 SEE Hardened to LET up to 82 MeV.cm²/mg
 Low Input & Output Noise
 Low Weight < 110 grams
 Magnetically Coupled Feedback
 60V to 120V DC Input Range
 Up to 40W Output Power
 Triple Output Models Include
+5V and ±12V or ±15V
 Main Output Isolated from Dual Outputs
 High Efficiency - to 82%
 -55°C to +125°C Operating Temperature Range
 100M @ 500VDC Isolation
 Under-Voltage Lockout
 Synchronization Input and Output
 Short Circuit and Overload Protection
 Output Over Voltage Limiter
 External Inhibit
 > 5,000,000 hour MTBF
Applications
 Geostationary Earth Orbit Satellites (GEO)
 Deep Space Satellites / Probes
 Strategic Weapons and Communication System
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2016-06-30