DC/DC Converter Drives Gate Circuits

01 August 2016

Murata has announced the MGJ1 1 Watt DC/DC converter series from Murata Power Solutions. These compact devices are ideal for driving high and low-side gate circuits, such as those using IGBTs and SiC MOSFETs for optimal efficiency.

MGJ1 1 Watt DC-DC converter. Source: Murata  MGJ1 1 Watt DC-DC converter. Source: Murata

With high isolation characteristics, up to 5.2 kVDC, the MGJ1 offers nominal output voltage combinations of +15 / -5, +15 / -9, or +19 / -5 VDC. The series also offers a choice of +5, +12, or +24 VDC input.

The MGJ1 series is characterized for high dV/dt immunity, which aids reliable and continued operation in fast switching circuits, and partial discharge performance that contributes to a long service life. Also, the converter’s low input-to-output coupling capacitance, typically 5 pF, assists in reducing the effects of EMI.

The series suits a broad range of medical applications for which certification to ANSI/AAMI ES60601-1 to 2 MOOPs is pending. The converter also conforms to the UL 60950 (pending) for reinforced insulation and incorporating a 9.3mm creepage and clearance space helps safety agency approvals for high working voltage applications.

The converter is rated to operate to 105 °C and incorporates short circuit and thermal shutdown protection.

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