LTC4281CUFD#PBF

Hot Swap Controllers Overview

The LTC4281CUFD#PBF is a hot-swap controller manufactured by Analog Devices Inc., designed for safe insertion and removal of circuit boards into live backplanes. It operates within an input voltage range of 2.9 V to 30 V, supporting output currents up to 50 A. The device features precise current limiting and monitoring capabilities to protect both the load and power supply during fault conditions. Packaged in a QFN-20 surface-mount format, it supports industrial temperature ranges and includes non-volatile configuration options for autonomous alert generation.

Hot Swap Controllers Feature Summary

• Integrates precise current limiting and monitoring to reduce operational extremes for loads and power supplies
• Supports non-volatile configuration for flexible autonomous alert generation and fault response
• Enables safe board insertion and removal from energized backplanes

Hot Swap Controllers Applications

• High-power server and storage system backplane protection
• Industrial equipment requiring safe module hot-swapping
• Telecommunications infrastructure with live card replacement needs

Hot Swap Controllers Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance status prior to integration. Ensure storage conditions meet moisture sensitivity level requirements to prevent package damage. Review latest datasheet revisions for any updates to electrical characteristics or pinout definitions before finalizing design specifications.

Hot Swap Controllers Selection Notes

Evaluate input voltage compatibility with the target backplane architecture, ensuring operation within the 2.9 V to 30 V range. Assess peak load current demands against the 50 A capability to determine adequate thermal management requirements. Consider the need for non-volatile configuration features if autonomous fault handling is required without host intervention. Verify package suitability for the intended PCB layout and assembly process.

Hot Swap Controllers Part Context

This component belongs to the LTC4281 series of hot-swap controllers, which are engineered for managing high-current applications where board safety is critical. The CUFD suffix indicates a specific commercial temperature grade and QFN-20 packaging variant. This family provides integrated solutions for controlling inrush current and protecting against overcurrent faults in demanding electronic systems.

Hot Swap Controllers Replacement Considerations

LTC4281EUFD#PBF: Industrial temperature grade version of the same controller.