Littelfuse Expands eFuse Protection ICs Series to Address More Diverse Demanding Applications

PublishTime： 2023-03-09 Article Source：Littelfuse News

CHICAGO, March 7, 2023 -- Littelfuse, Inc., an industrial technology manufacturing company empowering a sustainable, connected, and safer world, 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 latest eFuse Protection ICs are ideal for use in a wide range of electronics designs, including:

5V Applications

Portable electronics

Bluetooth devices

Wearables

Smartphones

USB Type-C cables

Internet of Things (IoT)

12V Applications

SSD/HDD

Switch routers

Enterprise servers

Fan0 systems

Telecom

Appliances

24V-28V Applications

USB Type-C PD

Power tools

Industry

PLC

POS

Building

"The expanded eFuse Protection ICs product line delivers clear performance advantages for electronics designers,” said Bernie Hsieh, Assistant Product Manager of the Protection Semiconductor Business team at Littelfuse. “Compared to traditional fuse, PTCs, power switches, and discrete solutions like Schottky diode and MOSFET combinations, the eFuses provide exceptional integration, adjustability, flexibility, and reliable protection features in highly compact form factors that save PC board space."

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, DFN1.2x1.6 package

· LS12052BD33 – 18V, 5A, overvoltage and blocking FET control, DFN2x2 package

· LS2405IDD23 – 24V, 5A, very low forward voltage diode, low profile 8 lead DFN 2x3 package

· LS24062RQ23 – 28V, 6A, bidirectional, dual port independent current limit setting, 16 lead QFN 2.5x3.2 package

Availability

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.

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