LTC4280IUFD#PBF

Hot Swap Controllers Overview

The LTC4280IUFD#PBF is a single-channel hot swap controller designed for safe insertion and removal of circuit boards from live backplanes. It operates within an input voltage range of 2.9V to 18V and supports adjustable current limiting with programmable slew rates to control inrush current. The device integrates an analog-to-digital converter (ADC) for precise monitoring of voltage, current, and power levels via an I2C-compatible interface. Packaged in a 24-lead QFN, it provides comprehensive fault protection including overvoltage, undervoltage, and thermal shutdown capabilities.

Hot Swap Controllers Feature Summary

• Integrates an ADC for real-time digital monitoring of electrical parameters
• Supports I2C-compatible serial interface for host communication
• Features programmable slew rate control for inrush management
• Provides adjustable current limit with foldback protection

Hot Swap Controllers Applications

• Server blade insertion and removal
• Telecommunications equipment hot swapping
• Industrial control board replacement
• Storage area network (SAN) module handling

Hot Swap Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm temperature grade and package variant. Ensure the ordering part number matches the required operating range and pin configuration. Cross-reference datasheet revisions to confirm compatibility with existing design specifications before procurement.

Hot Swap Controllers Selection Notes

Select this component when single-channel hot swap functionality with digital monitoring is required. It is suitable for applications needing precise power budgeting through ADC readings. Consider alternative models if multiple channels or different interface protocols are necessary. Verify that the 18V maximum input rating aligns with the system bus voltage.

Hot Swap Controllers Part Context

This part belongs to the LTC4280 family of hot swap controllers from Analog Devices. It is distinct from multi-channel variants like the LTC4282 and lacks the integrated MOSFET found in e-fuse solutions. It serves as a dedicated controller requiring external N-channel MOSFETs for power switching.

Hot Swap Controllers Replacement Considerations

Public confirmed substitute part numbers: LTC4280CUFD#PBF.