ARH28XXS Datasheet, PDF (1/12 Pages) International Rectifier – HYBRID - HIGH RELIABILITY RADIATION HARDENED DC/DC CONVERTERS

PD-95887A
HYBRID - HIGH RELIABILITY
RADIATION HARDENED
DC/DC CONVERTERS
ARH28XXS SERIES
28V Input, Single Output
Description
The ARH Series of DC/DC converters has been
designed specifically for use in the hostile environments
The high level of radiation tolerance inherent in the
ARH design is the result of extensive research, thorough
analysis and testing and of careful component
specification. Designed to supplement the triple output
configuration provided by the ART series, the ARH
circuit topology is the follow-on to the successful ART
design and incorporates many of the design features
characterizing that product line. Capable of uniform
high performance over long term exposures in radiation
intense environments, this series expands the standard
for distributed power systems demanding high
performance and reliability in the harsh environments.
The ARH converters are hermetically sealed in a
rugged, low profile package utilizing copper core input
and output pins to minimize resistive DC losses. Long-
term hermeticity is assured through use of parallel seam
welded lid attachment along with rugged ceramic pin-
to-package seal. Axial orientation of the leads facilitates
preferred bulkhead mounting placing the converter on
the principal heat-dissipating surface.
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.
ARH
Features
n Total Dose > 100 krad (Si), 2:1 Margin
n SEE Hardened to LET up to 83 MeV.cm²/mg
n Derated per MIL-STD-975 & MIL-STD-1547
n Output Power to 30 Watts
n Regulates to No-Load
n 18 to 50 Volt Input Range
n Input Undervoltage Lockout
n Fully Characterized from -55°C to +125°C
n Continuous Short Circuit Protection
n 12.8 W/in³ Output Power Density
n True Hermetic Package
n External Inhibit Port
n Externally Synchronizable
n Fault Tolerant Design
n Available with Outputs from 2.5V to 15V
n Overload Protection
n Standard Microcircuit Drawings Available
Variations in electrical, mechanical and screening
specifications can be accommodated. Contact IR Santa
Clara for special requirements.
www.irf.com
1
08/11/06