4707 Dey Road Liverpool, N.Y. 13088

(315) 701-6751

Typical Efficiency 70%

All Ceramic Capacitors

Surface Mount Magnetics

80 Volt Input Transient Tolerant

Operates to 12V Input at 5W

Wide Supply Range - 16V to 40V

High Isolation - 500V

Output Voltage Adjustment - Standard

Remote Shutdown

5V Output (See DHC Series for Other Voltages)

Replaces IR ASA2805S

Replaces Interpoint MSA2805S

MIL-PRF-38534 CERTIFIED

ISO-9001 CERTIFIED BY DSCC

M.S.KENNEDY CORP.

7.5W

DC-DC

CONVERTER

DHD2805S

DESCRIPTION:

The DHD2805S DC-DC converter provides the ruggedness, reliability and features required to meet the

advanced design challenges of today's hi-rel market. The use of advanced substrate and reflow soldering

techniques during construction results in a rugged, cost-effective and completely solderable package.

DHD2805S hybrid converter utilizes all ceramic capacitors and surface mount magnetics to provide

reliable operation at all operating temperatures while surviving very high G forces.

DHD2805S standard features include output fault monitoring and/or turn on voltage point programming

via the shutdown pin. All three functions may be implemented simultaneously with a minimum of external

components. An output voltage adjustment/load compensation pin is also standard.

Fault tolerant design protects these converters from most external circuit faults. The output and output

adjust pins will withstand +35V while the shutdown pin will withstand +50V protecting the converters

from a variety of system or board faults i.e. solder bridges, etc. Unique load fault protection circuitry

allows this converter to pull up loads having difficult static load line characteristics and allows short term

load excursions significantly beyond ratings in most applications.

A transformer isolated forward converter topology operating at a switching frequency of 400kHz allows

operation over a wide input voltage range. Internal filtering of both input and output eliminates the need for

external capacitors in many applications.

The 8-pin DIP package is hermetically sealed and isolated from the internal circuits. Heat sinking is

recommended for full power operation at elevated ambient temperatures.

Rev. C 3/05

1

FEATURES: