SynQor's hi-rel DC/DC converters for aerospace and defense applications offer extended input range

BOXBOROUGH, Mass., 16 Sept. 2009 SynQor added a new MQFL-28V product family to its portfolio of high-reliability (hi-rel) DC/DC converters. To ensure survivability in the most hostile environments in aerospace and military applications, the MQFL-28V series of 100W dc/dc converters are housed in packages using SynQor's QorSeal packaging technology which includes tin whisker mitigation.

Sep 16th, 2009

BOXBOROUGH, Mass., 16 Sept. 2009 SynQor added a new MQFL-28V product family to its portfolio of high-reliability (hi-rel) DC/DC converters. To ensure survivability in the most hostile environments in aerospace and military applications, the MQFL-28V series of 100W DC/DC converters are housed in packages using SynQor's QorSeal packaging technology which includes tin whisker mitigation.

While the MQFL-28V accepts continuous input voltages of 16-40 volts, it is capable of handling transient input voltages of 5.5-50 volts per second. The MQFL-28V family uses a special "boost-converter" stage that permits the converters to deliver full power through transients where its input voltage falls to as low as 5.5 volts. The under-voltage transient profile is designed to comply with all initial engagement surges, starting or cranking voltage transients, and under-voltage surges specified in MIL-STD-704-8 (A through F), RTCA/DO-160E, MIL-STD-1275B and DEF-STAN 61-5 (Part 6)/5 (operational portions).

The MQFL-28V converters provide as much as 100 watts of power and are now available with single output voltages of 3.3, 5, 12, and 28 volts. Additional single output voltage versions include 1.5, 1.8, 2.5, 6, 7.5, 9, and 15 volts.

The MilQor Hi-Rel MQFL-28 volt converters operate at efficiencies as high as 91 percent and are designed to operate from -55 to 125 degrees Celsius with multiple screening options for less stringent environmental requirements. Standard features include fixed switching frequency, parallel operation with current share, remote sensing, output trim adjust, clock synchronization, primary and secondary reference enable, continuous short circuit and overload protecting, and input under-voltage lockout and input over-voltage shutdown. Complimentary EMI module solutions are available which include transient suppression circuitry, enable pass-through circuitry, and reverse polarity protection.

The MQFL-28V converters are compatible with industry standard formats, have no opto-isolators and follow NAVSO P3641A & MIL-HDBK-1547A component derating guidelines. MQFL-28 Hi-Rel converters are designed and manufactured to comply with a wide range of military standards, including Mil-Std-461(C, D, E) and RTCA/DO-160E (Section 22).

The MQFL-28V portfolio of Hi-Rel dc/dc converters is a more cost effective solution than existing hybrid chip-and-wire converters. Sample quantities are readily available, and production quantities are available with a standard lead-time of 12-16 weeks ARO, depending on screening options. For additional information, please see http://www.synqor.com/milqor-hirel/index.html.

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