6 W DC-DC converter for IGBT, SiC and MOSFET gate drive applications

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By Nick Flaherty

The MGJ6 series is available in SIP, DIP and a low profile surface mount package format with wide input voltages of 5, 12, or 24 VDC  and + 15 / – 5, + 15 / – 10 or + 20 / – 5 VDC outputs. Suitable for low to medium power applications that require a DC link voltage up to 3 kVDC, the asymmetric outputs provide optimum drive levels to maintain a high system efficiency with low EMI levels. The very low coupling capacitance of 15pF reduces EMI coupling through the converter.

The MGJ6 series has a characterized dV/dt immunity of 80 kV/us minimum at 1.6 kV, contributing to a high degree of reliability in fast switching drive systems. The series also has  characterized partial discharge performance, crucial to achieving a long service life in high performance applications.

Certification to the safety standard UL60950 for reinforced insulation and the medical 3rd edition safety standard ANSI/AAMI ES60601-1 for 2 MOOPs and 2 MOPPs is currently pending.  With a creepage and clearance of 8 mm, the MGJ6 will satisfy safety agency requirements for extra high working voltages. 

“The MGJ6 series provides optimized voltages for power gate drives for the best overall system performance and efficiency,” said Murata’s product marketing manager, Ann-Marie Bayliss. “With characterized partial discharge performance, they are now available, in a choice of form factors.”

Short circuit and overload protection features are standard across the range and a frequency synchronization/enable input pin can simplify EMC filter design.


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