LS2406ERQ23

Current Regulation/Management Overview

The LS2406ERQ23 is a dual-channel eFuse power distribution IC from Littelfuse, designed for robust circuit protection in 28V systems. It delivers up to 6A output current per channel with a maximum on-resistance of 24 mΩ and an operational supply voltage range of 3V to 24V. The device integrates true reverse current blocking (RCB) and fast role swap (FRS) capabilities, ensuring safe bidirectional power flow management. Key protection features include overcurrent limiting at 5A, thermal shutdown, and short-circuit protection. Operating within a temperature range of -40°C to +125°C, it is housed in a compact QFN-16 package suitable for surface mount applications.

Current Regulation/Management Feature Summary

• Integrates true reverse current blocking and fast role swap functionality for bidirectional power control
• Provides independent current limiting and discharge control for each of the two output channels
• Combines overvoltage, overcurrent, and thermal protection mechanisms within a single integrated circuit

Current Regulation/Management Applications

• Industrial 12V/24V power input/output circuits
• Data communication power systems
• HDD and SSD storage drive power interfaces

Current Regulation/Management Procurement Notes

Verify component authenticity through authorized Littelfuse distributors or direct manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level prior to assembly. Ensure proper ESD handling procedures are followed during storage and installation to maintain device integrity and performance reliability.

Current Regulation/Management Selection Notes

Select this component when bidirectional power transfer with strict reverse current isolation is required. The integrated FRS feature supports hot-swap scenarios without external controllers. Evaluate thermal dissipation requirements based on the 2.6W power dissipation rating and ambient operating conditions to ensure reliable long-term operation.

Current Regulation/Management Part Context

This part belongs to Littelfuse's eFuse protection IC series, which consolidates power switching and protection functions. The LS2406ERQ23 specifically targets higher voltage industrial and data infrastructure applications compared to lower voltage consumer variants. It replaces discrete MOSFET and controller solutions by reducing bill of materials count and board space.

Current Regulation/Management Replacement Considerations

LS24062RQ23: Bidirectional load switch variant lacking specific eFuse diagnostic features.