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eFuse 400 Top View

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This new reference design features an eFuse with 750 V and 2 mΩ total silicon carbide (SiC) JFET cascodes and a VOA300 optocoupler. It is designed to provide continuous power of up to 40 kW to the load. The design allows for continuous operation at full current with less than 30 W of losses and no active cooling. It also features a preload function, continuous current monitoring, and overcurrent protection with a shutdown time of less than 2.5 µs. Analog control is implemented in the low-voltage domain, and measurement data is transmitted across the isolation barrier using the VOA300.

Reference Design Files

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This new reference design features an eFuse with 750 V and 2 mΩ total silicon carbide (SiC) JFET cascodes and a VOA300 optocoupler. It is designed to provide continuous power of up to 40 kW to the load. The design allows for continuous operation at full current with less than 30 W of losses and no active cooling. It also features a preload function, continuous current monitoring, and overcurrent protection with a shutdown time of less than 2.5 µs. Analog control is implemented in the low-voltage domain, and measurement data is transmitted across the isolation barrier using the VOA300.

Reference Design Files

White Paper

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eFuse 400 Top View

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Reference

400 VDC 100 A Bidirectional eFuse

Schematic Design

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Features

Disconnect loads in under 2 μs

Precharging of DC-link capacitors in power electronics

Resettable fuse

Adjustable current limit

Products

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