All in a reference design to avoid sourcing individual parts. The MSDR-EFUSE reference design, available for order from Mouser.com, incorporates an active circuit protection device with an integrated SiC FET and an 8-bit microcontroller (MCU). This high-voltage solid-state relay reference design features overcurrent protection (software-programmable), a configurable current limit profile, a continuous output load current of up to 30 A, and two short-circuit detection modes: level-change trigger and level-change trigger with transition backup. Although the demo board is equipped solely with AEC-approved components designed for automotive and electric vehicle (EV) battery-based applications (400 or 800 V), the board also implements a thermally characterized time-current characteristic (TCC) curve to facilitate migration to non-automotive applications, such as DC solid-state circuit breakers. The MSDR-EFUSE features a short-circuit withstand time of 10 µs, a switching frequency of up to 20 kHz, and a LIN communication interface for configuration and diagnostics. Potential target applications include electric vehicles (EVs), hybrid electric vehicles (HEVs), smart DC grids, and industrial charging stations.

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