Murata has expanded its offering in the area of advanced power solutions with a new series of surface-mount DC-DC converters.
The MGJ2 family consists of 9 models, each with a nominal output of 2 W, available as compact, low-profile modules measuring 19.49 x14.99 x4.39 mm.
The new converters are designed for high-voltage gate drive applications of SiC and IGBT MOSFETs in the industrial, mobility and renewable energy sectors.
The converters are available in versions that support the most popular input voltages - 5V (under development), 12 and 15V - and provide bipolar outputs of +15V/-5V, +15V/-9V and +20V/-5V.
The new MGJ2 series DC-DC converters feature an extremely low isolation capacitance of only 3 pF (typical).
This helps to minimise the phenomenon of transient coupling at the ends of the isolation barrier and to prevent the occurrence of EMI problems due to circulating currents generated by high-frequency signals.
Optimised partial discharge performance ensures long service life despite use in demanding applications such as high-voltage applications.
Similarly, the high Common Mode Transient Immunity (CMTI), which exceeds 200 kV/µs, allows high switching frequencies to be handled.
Other notable features of these converters include the presence of a continuous barrier capable of withstanding voltages up to 2.5 kV (tests have also been carried out showing the ability to withstand voltages up to 5.7 kV for 1 minute) and creepage and clearance distances of 9 mm.
Capable of operating in the extended temperature range of -40 to +100 °C, the converters incorporate shot circuit protection mechanisms. The MGJ2 series devices comply with UL62368 specifications (reinforced isolation of 250 VAC), while approval for ANSI/AAMI ES60601-1 certification is pending.
Industrial motor drives, inverters for wind and solar turbines, UPSs and fast charging stations for electric vehicles are some of the typical application areas for these DC-DC converters.
