HYBRID-HIGH RELIABILITY

RADIATION TOLERANT

DC-DC CONVERTER

ARH

ARH28XXXXS SERIES

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 hermetically

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 DLA Land and Maritime

qualified processes. For available screening options,

refer to device screening table in the data sheet.

Variations in electrical, mechanical and screening specifications

can be accommodated. Contact IR HiRel San Jose for special

requirements.

1

2016-06-29

PD-95887C

28V Input, Single Output

Features



 Total Dose > 100 kRads(Si), 2:1 Margin





 De-rated per MIL-STD-975 & MIL-STD-1547

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 Output Power to 30 Watts

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 Regulates to No-Load

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 18 to 50 Volt Input Range

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 Input Under voltage Lockout

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 Fully Characterized from -55°C to +125°C

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 Continuous Short Circuit Protection

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 True Hermetic Package

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 External Inhibit Port

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 Externally Synchronization

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 Fault Tolerant Design



 Available with Outputs from 2.5V to 15V



 Overload Protection



 Standard Microcircuit Drawings Available