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LAMBDA ADVANCED ANALOG INC.
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PRELIMINARY
AIF28515Q
Quad Output, Hybrid - High Reliability
DC/DC Converter
DESCRIPTION
FEATURES
The AIF28515 DC/DC converter features an internal
EMI filter and four high performance outputs to
obtain a moderate power density without derating
over the full military temperature range. This device
also offers input conditioning for operation from
nominal +28 volt, MIL-STD 704A input power. This
series incorporates Lambda Advanced Analog's
proprietary magnetic pulse feedback technology
providing optimum dynamic line and load regulation
response. This feedback system samples the output
voltage at the pulse width modulator fixed clock
frequency, nominally 600 KHz. Undervoltage
lockout, soft-start and load fault protection are
provided on this device.
These converters are hermetically packaged in an
enclosure of modest dimension, utilizing copper
core pins to minimize resistive DC losses. These
pin leads are each fabricated with Lambda
Advanced Analog's rugged ceramic lead-to-package
seal assuring long term hermeticity in the most
harsh environments.
Manufactured in a facility fully qualified to MIL-PRF-
38534, these converters are available in several
screening grades to satisfy a range of requirements.
The HB grade is fully processed and screened to the
class H requirement of MIL-PRF-38534, but does
not have material element evaluated to the class H
requirement. This grade is tested to meet the
complete group "A" test specification over the full
military temperature range without output power
deration. Two additional grades with more modest
screening are also available for use in less
demanding applications. Variations in electrical,
mechanical and screening can be accommodated.
Contact Lambda Advanced Analog for special
requirements.
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18 To 50 Volt Continuous Input Range
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Internal MIL-STD-461 Input EMI
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Compatible with MIL-STD-704A Power Bus
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45 Watts Output Power
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Moderate Power Density
≈
15 W / in
3
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Low Profile Seam Welded Package
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Ceramic Feedthru Copper Core Pins
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Operation Over Full Military Temperature
Range
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Continuous Short Circuit and Overload
Protection
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MIL-HDBK-217F, N2 MTBF of 50K hours at
71oC, AUF
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Device Weight < 100 gms
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100 M
Isolation, Input to Output and Case