M3L_15 Datasheet, PDF (1/12 Pages) International Rectifier – 28V Input, Single/Dual Output

PD-94519B
HYBRID - HIGH RELIABILITY
RADIATION TOLERANT
DC/DC CONVERTER
M3L-SERIES
+ 28V Input, Single/Dual Output
Description
The M3L-Series of DC/DC converters are radiation
tolerant, high reliability devices designed for moderate
radiation environments such as those encountered by
low earth orbit satellites and launch vehicles. For higher
radiation environments, the M3G-Series of DC/DC
converters is recommended. Features include small size,
low weight and a high 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 MIL-STD-975 and MIL-STD-1547 and
GSFC PPL-21 Appendix B. Extensive documentation
including Radiation Susceptibility, Thermal Analysis,
Stress Analysis and MTBF are available.
The converters incorporate a fixed frequency single
forward topology with magnetic feedback and an internal
EMI filter. These converters are capable of meeting the
conducted emissions and conducted susceptibility
requirements of MIL-STD-461C without any additional
components. All models include an external inhibit port
and have an adjustable output voltage. They are
enclosed in a hermetic 1.5" x 2.3" x 0.425" steel package
and weigh less than 85 grams. The package utilizes
rugged ceramic feed-through copper core pins and is
sealed using parallel seam welding.
M3L
Features
n Total Dose > 25K Rad(Si)
n SEE Hardened to LET up to 37 MeV.cm²/mg
n Internal EMI filter; Converter Capable of
meeting MIL-STD-461C CE03 and CS01
n Low Weight, < 85 grams
n Magnetically Coupled Feedback
n 16V to 50V DC Input Range
n Up to 25W 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 @ 500VDC Isolation
n Under-Voltage Lockout
n Short Circuit and Overload Protection
n Output Over Voltage Limiter
n Adjustable Output Voltage
n External Inhibit
n 1,500,000 Hour MTBF
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DSCC
qualified processes. For available screening options,
refer to device screening table in the data sheet.
Non-flight versions of the M3L-Series converters are
available for system development purposes. Variations
in electrical specifications and screening to meet custom
requirements can be accommodated. Consult IR Santa
Clara for special requirements.
Applications
n Low Earth Orbit Satellites (LEO)
n Launch Vehicles
www.irf.com
1
09/08/06