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08/20/02
www.irf.com
1
ADVANCED ANALOG
HYBRID - HIGH RELIABILITY
RADIATION HARDENED DC/DC CONVERTER
ART28XXT SERIES
28V Input, Three Output
Description
Total Dose > 100KRad (Si), 2:1margin
SEE hard to LET = 83 Mev
.
cm
2
/mg
Designed to MIL-PRF-38534 for Class K
Derated per MIL-STD-975 & MIL-STD-1547
Output Power Range 3 to 30 Watts
19 to 50 Volt Input Range
Input Undervoltage Lockout
High Electrical Efficiency > 80%
Full Performance from -55°C to +125°C
Continuous Short Circuit Protection
12.8 W / in
3
Output Power Density
True Hermetic Package
External Inhibit Port
Externally Synchronizable
Fault Tolerant Design
5V,
±
12 or
±
15 Volts Outputs Available
Features
ART
The ART Series of three output DC/DC converters are
designed specifically for use in the hostile radiation
environments characteristic of space and weapon sys-
tems. The extremely high level of radiation tolerance
inherent in the ART design is the culmination of exten-
sive research, thorough analysis and testing and of
careful component specification. Many of the best cir-
cuit design features characterizing the Advanced Ana-
log standard product line were adapted for incorpora-
tion into the ART topology. Capable of uniformly high
performance over long term exposures in radiation in-
tense environments, this series sets the standard for
distributed power systems demanding high perfor-
mance and reliability.
The ART converters are hermetically sealed in a rug-
ged, low profile package utilizing copper core pins to
minimize resistive DC losses. Long-term hermeticity is
assured through use of parallel seam welded lid at-
tachment along with Advanced Analog’s rugged ce-
ramic pin-to-package seal. Axial orentation of the leads
facilitates preferred bulkhead mounting to the principal
heat-dissipating surface.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are fabricated utilizing DSSC
qualified processes, and are fully compliant to Class H
while being fully processed to the requirements of Class
K. Complete PI & CI testing has been completed in-
cluding Group C life test. Variations in electrical, me-
chanical and screening specifications can be accom-
modated. Contact Advanced Analog for special require-
ments.
PD - 94529