Richardson RFPD offers Wolfspeed auxiliary power-supply evaluation board

Geneva, Ill. Richardson RFPD Inc. has announced the availability of and full design support capabilities for a new evaluation board from Wolfspeed.

The CRD-060DD17P-2 is a demonstration board for a single-end flyback converter design with built with Wolfspeed’s commercially-available 1,700-V SiC MOSFET.

The 48-W experimental reference design demonstrates how the 1,700-V SiC MOSFET can reduce total cost and simplify the design of auxiliary power supply. It replaces the more common, but more complicated, silicon-based two-switch flyback topology, while successfully supporting a wide input voltage range (300 V to 1,000 V). An active start-up circuit is also introduced to achieve less start-up losses with faster start-up time.

The design utilizes Wolfspeed’s C2M1000170J, which is available in a 7LD2PAK surface-mount package that combines a small footprint with a wide creepage distance—7 mm between drain and source. By moving to the surface-mount package, design engineers can achieve economical thermal designs without the need for a heat sink on the MOSFET. The addition of a heat sink enables the same design to reach 58 W of output power.

The C2M1000170J features high blocking voltage with low R_DS(on), low parasitic inductance, ultra-low drain gate capacitance, and a separate driver source pin. It is easy to parallel and simple to drive, and it is suited for auxiliary power supplies, switch-mode power supplies, and other applications involving high-voltage capacitive loads.

To find more information or to purchase these products today online, visit the CRD-060DD17P-2 and C2M1000170J webpages.