Protection IC eFuse Regulator

Littelfuse's semiconductor-based protection IC (eFuse) provides highly integrated functionality in compact-size packages in addition to existing passive overcurrent protection such as fuses and PTCs etc. They offer protection against overcurrent, overvoltage, undervoltage, overtemperature, reverse current as well as inrush protection in hot-swap and hot-plug events.

Accuracy and integration provide highly accurate current limiting, faster response time, and more integrated protection, sensing, and control features than traditional fuses and PTCs. Programmable and customized design upon request that incorporates more flexibility such as adjustable overvoltage threshold, current limiting, and inrush current, along with true reverse current blocking compared to conventional power switches speed up time-to-market. Reduces the design-in phase, PC board space requirements, BOM cost, and time-to-market versus typical discrete solutions (e.g., hot-swap controller + MOSFET). These regulators help maximize equipment uptime with improved product reliability, increased battery life, lower repair costs, and lengthened overall product lifetime.