"Hi-Rel DC/DC CONVERTERMGDM-20 : 20W POWER nn

Hi-RelGrade

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Single, Bi & Triple OutputsMetallic Case - 1.500 VDC Isolation

nn 28Vdc input compliant with MIL-STD-704 D/EՕ Nominal power up to 20 W Wide temperature range : -40հC/+105C caseЕ High efficiency (typ. 84%)
Soft startՕ Galvanic isolation 1.500 VDC Integrated LC EMI filter
Օ Permanent short circuit protection
No optocoupler for high reliability nn

1-General

nnThe MGDM-20 series is a complete line of high
performance DC/DC power modules designed for
aerospace, military and high-end industrial ap-
plications. These modules use a high frequency
fixed swiching technic at 480 KHz providing ex-
cellent reliability, low noise characteristics and
high power density. Standard models are
available with standard input voltage range of
4.5-5.5, 9-36 and 16-40 volts. The series include
single bi and triple output voltage choices of
3,3 , 5, 12, 15 volts.
No external heatsink is required for the MGDM-
20 series to supply 20W output power over the
full temperature range.
All the modules are designed with LC network
filters to minimize reflected input current ripple
and output voltage ripple.
The modules include a soft-start, an inputundervoltage lock-out, a permanent short cir-
cuit protection and an output overvoltage pro-tection to ensure efficient module protections.The soft-start allows current limitation and
eliminates inrush current during start-up. The
short circuit protection completely protects the
modules against short-circuits of any duration
by a shut-down and restores to normal when
the overload is removed.
The design has been carried out with surface
mount components and is manufactured in a
fully automated process to guarantee high
quality. Each module is tested with a GAIA
Converter automated test equipment.The mo-
dules are potted with a bi-component thermal
conductive compound and packaged in a metallic
case to ensure the moduleՒs integrity under high
environmental conditions. nn4 nn

2-Product Selection

nnSingle output model: MGDS-20- (/T) and/or (/S) Bi output model: MGDB-20- (/T) and/or (/S) Triple output model: MGDT-20- (/T) and/or (/S)

(/T) : option for -55C start up operating temperature
(/S) : option for screening and serialization Transient Input Voltage Range Output Permanent n/a40 VDC/100 ms*
50 VDC/100 ms* B : 3.3 VDCC : 5 VDC or +/-5VDC
E : 12 VDC or +/-12VDC
F : 15 VDC or +/-15VDC
BE : 3,3 VDC and +/-12 VDC
BF : 3,3 VDC and +/-15 VDC
CE : 5 VDC and +/-12 VDC
CF : 5 VDC and +/-15 VDC C : 4,5-5,5 VDCH : 9-36 VDC
J : 16-40 VDC >
* Consult factory for details REDEFINING THE SOURCE OF POWER

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Gaia Converter FC98-016.08/06 Revision L For locations, phone, fax, E-Mail see back cover >

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