DC/DC converters are optimised for SiC power applications

The latest DC/DC converters from Recom have all the features needed to power SiC (silicon carbide) MOSFET drivers in efficiency-conscious applications, like EVs, renewable-energy conversion, and high-power industrial drives.

The RKZ-xx2005D and RxxP22005D are available from distributor, Dengrove. They provide up to 4.0 or 5.2kV DC respectively to ensure long-term safety in the presence of high potential differences between control and power circuitry in SiC-MOSFET applications, says the company.

By providing asymmetrical +20V/-5V outputs, they enable the gate driver to apply optimal turn-on and turn-off voltages (VGS). Unlike conventional silicon power transistors, SiC MOSFETs require high VGS for full turn-on, and negative VGS for fast turn-off, to minimise RDS(ON) and switching losses for best overall energy efficiency.

As unregulated 2W converters, both models feature power-sharing outputs that can be used with equal-power (asymmetrical current) or equal-current (asymmetrical power) loads.

The converters operate at up to 85 per cent efficiency, and are available with input voltages of 5.0, 12, 15 or 24V. Operating temperature range is from -40 to +100 degree C (with derating), UL60950 and IEC/EN60950 certification, and RoHS2 and REACH compliance. All units are covered by the manufacturer’s three year warranty.



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