Leapers Semiconductor Delivers Highest Power Density Ultra Compact SiC Power Modules on the Market

Leapers Semiconductor Delivers Highest Power Density Ultra Compact SiC Power Modules on the Market

Rapid growth of technology over the past century brought as many advantages as many disadvantages including the accelerating global warming with its dramatic consequences we face every day in various parts of our planet. So far no one found the solution how to stop this process, but there are many solutions how to slow it down. This is why the modern society responds to this challenge with its zero emissions carbon free initiatives launched in many countries across the globe. And one of the major steps in this green society program is electrification of passenger and commercial vehicles.

Right now, companies have various approaches to vehicle electrification like mild-hybrid electric vehicles MHEV, full hybrid electric vehicles HEV, plug-in hybrid electric vehicles PHEV, battery electric vehicles BEV, and fuel-cell electric vehicle FCEV.

Recently a lot of attention has been paid to fuel-cell electric vehicles, FCEVs.

The existing FCEVs generally use the external energy systems like high-voltage battery packs as the auxiliary power source to improve the dynamic characteristics of the system. Among them, the DC-DC controller converts the output voltage of the FCEVs to a level that matches the DC bus voltage and adjusts the output power of the FCEVs according to the power demand of the vehicle and the SOC state of the battery pack or supercapacitor. Therefore, the DC-DC controller of the FCEVs is the key component in the power system.

The application environment of the DC-DC controller is relatively special, especially in the conditions of high frequency (≥ 50kHz), high current (output 100-300A), high voltage (output voltage 300-800V) and high integration. And the traditional IGBT cannot meet these requirements, so SiC is the most suitable solution for this scenario because of its characteristics of high frequency, high voltage withstand, low conductivity, and low switching losses.

E0 Family of the Automotive Grade SiC Power Modules Produced by Leapers Semiconductor
E0 Family of the Automotive Grade SiC Power Modules Produced by Leapers Semiconductor


According to the test data, at different frequencies, the efficiency of the converter built with SiC is 1% - 3.1% higher compared to the same built with Si. These efficiency improvements can significantly reduce the overall operating cost of the FCEVs for the same mileage, which is very significant improvement for the production and use of FCEV.

To further enhance the efficiency of the FCEVs, Leapers Semiconductor has expanded its E0 family of the automotive grade SiC power modules with the most powerful version ever produced in such a compact package.

The new DFS09CU12EYQ1 SiC power module delivers high power density which is specifically beneficial for FCEV power system. Boost circuit topology can support the maximum 150A current output, while the same package commercially available modules can only achieve 100A current output.

Among the other features of the new E0 DFS09CU12EYQ1 SiC power module:

  • Blocking voltage 1200V
  • Rds(on)=9.2mOhm
  • Maximum effective current 150A
  • Rth(j-c)=0.09K/W

The new DFS09CU12EYQ1 is automotive qualified SiC power module featuring highly reliable epoxy resin to meet the reliability requirements of the fuel-cell electric vehicle. With its ultra-compact package size, it reaches an outstanding level of power density, which is of high importance for the whole system cost reduction.

At present, the E0 family SiC power modules used in the DC-DC converters of new energy vehicles, provide the design goal of ≥ 99% conversion efficiency and high integration.

Besides the FCEVs application, the new DFS09CU12EYQ1 SiC power modules will be a perfect choice for:

  • Frequency converters
  • Photovoltaic energy storage systems

The samples of the new DFS09CU12EYQ1 SiC power modules produced by Leapers Semiconductor can be ordered starting today.?

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