M3G7003R3S Datasheet, PDF (1/13 Pages) International Rectifier – HYBRID - HIGH RELIABILITY RADIATION HARDENED DC-DC CONVERTER

PD-94532O
HYBRID - HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTER
M3G-SERIES
70V Input, Single/Dual 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 utlizing 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
n Total Dose > 200KRad(Si),
typically usable to > 300KRad(Si)
n SEE Hardened to LET up to 82 MeV.cm²/mg
n Low Weight, < 110 grams
n Low Input & Output Noise
n Magnetically Coupled Feedback
n 60V to 120V DC Input Range
n Up to 40W Output Power
n Single and Dual Output Models Include
3.3, 5, 12, 15, ±5, ±12 and ±15V
n High Efficiency - to 82%
n -55°C to +125°C Operating Temperature Range
n 100MΩ @ 500V DC Isolation
n Under-Voltage Lockout
n Short Circuit and Overload Protection
n Output Over Voltage Limiter
n Remote Sense on Single Output Models
n Adjustable Output Voltage for Duals
n Synchronization Input and Output
n External Inhibit
n > 5,000,000 Hour MTBF
Applications
n Geostationary Earth Orbit Satellites (GEO)
n Deep Space Satellites / Probes
n Strategic Weapons and Communication
Systems
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1
09/12/12