Vishay EFUSE-48V100A eFuse reference design

The electronic fuse (eFuse) concept is designed to protect both the user and the hardware in high-power applications. With the steady increase in 48 V eMobility applications, semiconductor-based resettable fuses are suitable for replacing mechanical relays, contactors and non-resettable fuses.

Vishay’s EFUSE-48V100A reference design features TrenchFET MOSFETs and is designed to handle continuous current up to 100 A. It can operate continuously at maximum current with less than 14 W of losses without requiring active cooling. The eFuse also features a pre-charge function, continuous current monitoring and overcurrent protection.

In addition to safely connecting and disconnecting to 48 V power sources like high-energy battery packs, the product also features fast disconnect of loads in under 2 μs, a resettable fuse and an adjustable current limit. It is designed to work in battery management systems, EV test environments, solar installations, industry and home automation, industrial and server computing, networking, telecom and base station power supplies.