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DVHF2800S Series

HIGH RELIABILITY HYBRID

DC-DC CONVERTERS

DESCRIPTION FEATURES

Reliability The DVHF series of high reliability DC-DC converters High

is operable over the full military (-55 °C to +125 °C) Very Low Output Noise temperature range with no power derating. Unique Wide Input Voltage Range: 15 to 50 Volts per to the DVHF series is a magnetic feedback circuit MIL-STD-704 that is radiation immune. Operating at a nominal Up to 20 Watts Output Power fixed frequency of 450 kHz, these regulated, isolated Radiation Immune Magnetic Feedback Circuit units utilize well controlled undervoltage lockout NO Use of Optoisolators circuitry to eliminate slow start-up problems. Undervoltage Lockout Indefinite Short Circuit Protection These converters are designed and manufactured in

Current Limit Protection

a facility qualified to ISO9001 and certified to MIL- Industry Standard Pinout

PRF-38534 and MIL-STD-883.

High Input Transient Voltage: 80 Volts for 1 sec

per MIL-STD-704A

This product may incorporate one or more of the

Radiation Hardened Version Available following U.S. patents:

Precision Projection Welded Hermetic Package

High Power Density: > 37 W/in3 5,784,266

Custom Versions Available 5,790,389

Additional Environmental Screening Available 5,963,438

Meets MIL-STD-461C and MIL-STD-461D EMC 5,999,433

Requirements When Used With a DVMH28 EMI 6,005,780

Filter 6,084,792

Flanged and Non-flanged Versions Available. 6,118,673

MIL-PRF-38534 Element Evaluated

Components

Figure 1 – DVHF2800S / DVHF2800SF DC-DC Converter

(Not To Scale)