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Wolfspeed - Powering the Next Generation with Silicon Carbide

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| 4 | | 24 | RGext of 0Ω. When one looks at the switching-loss optimized CAB400M12XM3, the total switching loss at 800V/400A gets even lower at less than 15mJ. The XM3 also delivers lower conduction losses without intrinsic knee-voltage to enable high efficiency at light loads. The XM3 footprint offers enough internal layout flexibility to accommodate many different device configurations. As such, Wolfspeed will be releasing future derivative configurations of the XM3 up to 1.7kV, spanning several different topologies. These derivative configurations will target various end-use applications and power levels to cater to a wide variety of needs. The first release in the XM3 platform is the CAB450M12XM3, which is targeted at conduction-loss optimized applications; followed by the CAB400M12XM3 and CAB425M12XM3, which are aimed at switching-loss optimized applications. XM3 Evaluation Tools: Making SiC Implementation Easy Designing around SiC can be challenging, so Wolfspeed creates educational material to teach new SiC designers best practices and help them master this new semiconductor material. The XM3 platform has system-level demonstrations, as well as laboratory evaluation tools to get you up and running quickly. The XM3 platform includes: • the CGD12HBXMP Gate Driver • the KIT-CRD-CIL12N-XM3 Dynamic Characterization Evaluation Kit • the CRD---DA12E-XM3 200kW to 300kW Three-Phase Inverter Reference Design (The "---" in the part number is the power level, which is dictated by the module populated within the reference design, so multiple part numbers are available.) The CGD12HBXMP gate driver has been optimized for Wolfspeed's C3M devices and is form-factor fitting to the XM3 footprint. Voltage rails of +15V/-4V on the output stage match the recommended VGS rating for C3M devices. The driver includes a Murata DC-DC converter with 2W for each channel to enable high-frequency switching up to 80kHz, with a peak isolation voltage of 5.2kV for 1 minute and just 2.9pF of isolation capacitance. The driver offers up to 1000 VRMS isolation (working voltage); overcurrent, shoot-through and reverse polarity protection; and 100kV/μs Common-Mode Transient Immunity (CMTI). It also offers differential inputs for enhanced noise immunity. If your laboratory environment is not equipped to use differential signaling, Wolfspeed also provides a companion transceiver board that converts differential signals to single-ended—the CGD12HB00D. The design files for both the driver and the differential transceiver board are available for download so that you can use the schematics as a learning tool to build your driver if you'd like. XM3 Power Module XM3 Evaluation Panel KIT-CRD-CIL12N XM3 Three-phase Inverter Interior View

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