Richardson adds evaluation board for SiC MOSFET from Wolfspeed
The CRD-060DD17P-2 is a demonstration board for a single-end flyback converter design built with Wolfspeed’s commercially-available 1700V SiC MOSFET. It is available from Richardson RFPD. The single-end flyback converter design delivers 48W of power using 1700V SiC MOSFET in a low-inductance, surface mount D2PAK to reduce cost and simplify design
The 48W experimental reference design demonstrates how the 1700V SiC MOSFET can replace the more complicated, silicon-based two-switch flyback topology, while supporting an input range of 300 to 1000V). An active start-up circuit 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. It has a small footprint with a wide creepage distance—7mm between drain and source. The surface mount package allows design engineers to achieve economical thermal designs without the need for a heat sink on the MOSFET, says the company. The addition of a heatsink enables the same design to reach 58W of output power.
The C2M1000170J features high blocking voltage with low RDS(on), low parasitic inductance, low drain gate capacitance, and a separate driver source pin. It is suited for auxiliary power supplies, switch mode power supplies, and other applications involving high-voltage capacitive loads.