RS31340A

Hot Swap Controllers Overview

The RS31340A is an active circuit protection device from Reed Semiconductor Corp., functioning as a hot swap controller and eFuse protection switch. It features an integrated MOSFET to limit current and voltage to safe levels during fault conditions. The device operates within a supply voltage range of 2.97V to 16.5V and supports an output current of up to 10A. It includes accuracy current monitoring and transient overcurrent blanking capabilities. The component is housed in a 10-QFN (2x2) surface-mount package and is rated for an operating temperature range of -40°C to 125°C.

Hot Swap Controllers Feature Summary

• Integrated MOSFET for active current and voltage limiting during faults
• Accuracy current monitoring functionality
• Transient overcurrent blanking capability
• Hot swap controller design for motherboard applications

Hot Swap Controllers Applications

• Industrial systems
• PCI/PCIe interfaces
• Motherboard protection circuits

Hot Swap Controllers Procurement Notes

Verify the specific suffix (e.g., 'R' for reel) against the required packaging format. Confirm the 10-QFN package dimensions match the PCB footprint. Ensure the thermal rating aligns with the system's heat dissipation requirements. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Validate that the 2.97V-16.5V input range suits the target power rail.

Hot Swap Controllers Selection Notes

Select this component when active protection for hot-swap scenarios is required. The 10A current rating suits moderate-power bus applications. The integrated MOSFET reduces external component count compared to discrete solutions. Consider the 10-QFN package size for space-constrained designs. Verify compatibility with the system's fault detection logic due to the integrated monitoring features.

Hot Swap Controllers Part Context

The RS31340A belongs to Reed Semiconductor's eFuse protection switch family, designed for robust circuit protection. It serves as a direct replacement for traditional fuse-based solutions in modern electronic systems. The device integrates control logic and power switching into a single compact package. This integration enhances reliability while simplifying the bill of materials for industrial and computing platforms.

Hot Swap Controllers Replacement Considerations

Check for pin-compatible alternatives from other manufacturers if supply constraints exist. Verify that substitute parts support the same 10A current handling and 16.5V maximum voltage. Ensure equivalent transient overcurrent blanking times are available in potential replacements.