Microchip's Solid-State High-Voltage Auxiliary E-Fuse Reference Design for EVs/HEVs/Industrial Charging Apps, Now at Mouser
April 30, 2024 – Mouser Electronics, Inc., the industry's leading New Product Introduction (NPI) distributor with the widest selection of semiconductors and electronic components™, is now stocking the MSDR-EFUSE high-voltage auxiliary E-Fuse reference design from Microchip Technology. Leveraging the benefits of Microchip's proven 700V and 1200V Silicon Carbide mSiC™ products and other company technologies, this high-voltage auxiliary E-fuse solid-state relay demonstrator board offers designers a total system solution (TSS) to diagnose the status of current, temperature and bias supply measurements of automotive and industrial power management applications all in one reference design to avoid sourcing individual parts.
The Microchip Technology MSDR-EFUSE reference design, available from Mouser Electronics, incorporates an active circuit protection device with an integrated SiC FET and 8-bit microcontroller (MCU) that aids with limiting currents and voltages to safer levels during fault conditions and helps withstand the sizeable magnetizing inrush that occurs during a transformer start-up. This high-voltage, solid-state relay reference design features over-current protection (programmable in software), a configurable current-limit profile, up to a 30A continuous output load current, and two modes of short-current detection – edge-triggered and ride-through edge-triggered. Even though the demonstrator board is equipped with only AEC-qualified components designed for automotive and electric vehicle (EV) battery-based applications (400V or 800V), the board also implements a time-current characteristic (TCC) curve based on thermal characterization that helps migrate to non-automotive applications such as DC solid-state circuit breakers.
The Microchip MSDR-EFUSE reference design is specified for low-voltage operation from 9V to 16V and high-voltage operation from 200V to 900V. Other features of the demonstrator board include a 10µs short-circuit withstand time, up to a 20kHz switching frequency and a LIN communication interface for configurability and diagnostics.
The MSDR-EFUSE reference design is orderable from Mouser Electronics in six different variants, supporting 400V and 800V bus voltages and continuous current ratings of 10A, 20A and 30A. The demonstrator board has an operating temperature range of −40°C to 85°C, and target applications include electric vehicles (EVs), hybrid electric vehicles (HEVs), DC smart grids and industrial charging stations.
To learn more, visit https://www.mouser.com/new/microchip/microchip-high-voltage-auxiliary-e-fuse-ref-design/.
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