Configurable DC-DC Converters for IGBT and MOSFET Gate Drive Applications

November 13, 2014 By admin Comments are Off

Murata Power Solutions has announced the MGJ3 and MGJ6 series of configurable output voltage, high isolation dc-dc converters. These 3-Watt and 6-Watt surface-mounted devices are optimized for use as high-side and low-side gate drivers in IGBT and MOSFET bridge circuit designs. Providing triple output voltages of +15, +5 and +5 Vdc, these converters provide optimum switching of IGBT drives for best overall system efficiency. In addition, the outputs are configurable to suit a number of different circuit requirements such as +15 and -5 Vdc or +20 and -5 Vdc.

Both the MGJ3 3-Watt and the MGJ6 6-Watt converters are available with a choice of wide input voltages around nominal +5, +12, or +24 Vdc inputs. The input ranges are 4.5 to 9 Vdc (+5 Vdc nominal), 9 to 18 Vdc (+12 Vdc nominal) and 18 to 36 Vdc (+24 Vdc nominal).

The MGJ3 measures 23.11 x 22.61 x 14.65 mm and the MGJ6 is 31.24 x 22.61 x 14.65 mm. Both series can operate over the wide temperature range from -40 to +105 degrees C. Short circuit and overload protection features ensure a robust operation during system fault conditions. Other control inputs include a disable pin to facilitate power saving and a frequency synchronization input that aids EMC filter design.

Typical applications for the MGJ series include use in motor drives, traction control drives, and wind turbine generators. Lead-time is from stock to 10 weeks. Pricing in OEM quantities is US$11.20 for the MGJ3; for the MGJ6, US$14.70.

source: http://www.powerpulse.net/story.php?storyID=31080

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