Littelfuse, Inc. announced the latest release of four versatile circuit protection devices in the eFuse Protection ICs product line.

The latest eFuse Protection ICs utilize an innovative design ideal for a wide range of power inputs (3.3V to 28V) with highly integrated protection. These semiconductor-based electronic fuses provide robust overvoltage, overcurrent, short circuit, and inrush current protection. Additional features include reverse current blocking, under voltage lockout (UVLO), soft start, and overtemperature protection with real-time diagnostics—all in one compact chip.

The eFuse Protection ICs offer the following key benefits: Accuracy and integration – Provide faster response time, highly accurate current limiting, and more integrated protection, control, and sensing features than traditional fuses and PTCs; Programmable and customized, designed to user request – Incorporates more flexibility including adjustable overvoltage threshold, current limiting, and inrush current, along with accurate reverse current blocking compared to conventional power switches; Speeds up time-to-market – Reduces the design-in phase, printed circuit board (PCB) space requirements, BOM cost, and time-to-market in comparison to typical discrete solutions (e.g., hot-swap controller + MOSFET); Maximize Equipment Uptime – Improves product reliability, increases battery life, lowers repair costs, and lengthens overall product lifetime;

The latest additions to the eFuse Protection ICs are available in the following series: LS0504EDD12 – 5V, 4A, low Ron power distribution load switch, DFN1.2×1.6 package; LS12052BD33 – 18V, 5A, overvoltage and blocking FET control, DFN2x2 package; LS2405IDD23 – 24V, 5A, very low forward voltage diode, low profile 8 lead DFN 2×3 package; LS24062RQ23 – 28V, 6A, bidirectional, dual port independent current limit setting, 16 lead QFN 2.5×3.2 package;

The eFuse Protection ICs are available in tape and reel format in quantities of 3,000 (LS2405IDD23, LS0504EDD12) or 5,000 (LS12052BD33, LS24062RQ23). Place sample requests through authorized Littelfuse distributors worldwide.