LTC4227IUFD-4#TRPBF

Hot Swap Controllers Overview

The LTC4227IUFD-4#TRPBF is a Hot Swap Controller manufactured by Analog Devices Inc., designed for single-channel applications with an 18V N-Channel positive low voltage interface. It is housed in a 20-pin QFN EP package and operates within an industrial temperature range of -40°C to +85°C. The device integrates two ideal diode controllers and one hot swap controller, featuring a quiescent current of 2 mA. This component is supplied in tape and reel packaging for surface mount technology (SMD/SMT) installation.

Hot Swap Controllers Feature Summary

• Integrates dual ideal diode controllers alongside a dedicated hot swap controller for comprehensive power path management.
• Provides controlled inrush current limiting and overcurrent protection during board insertion or power-up events.
• Supports negative voltage bus hold functionality to maintain system integrity during upstream power failures.

Hot Swap Controllers Applications

• Hot swap circuitry for backplane systems requiring safe board insertion.
• Power distribution units managing redundant power inputs.
• Industrial control systems needing protected power rails for peripheral modules.

Hot Swap Controllers Procurement Notes

Verify the specific suffix TRPBF confirms tape and reel packaging rather than tube. Confirm the IUFD variant meets the required industrial temperature range (-40°C to +85°C). Ensure the 20-QFN EP footprint matches the PCB layout. Cross-reference the manufacturer part number with official Analog Devices documentation to validate pinout and electrical specifications before finalizing procurement orders.

Hot Swap Controllers Selection Notes

Select this component when designing circuits requiring integrated ideal diode rectification and hot swap protection in a compact form factor. The dual ideal diode feature simplifies power path design by eliminating external Schottky diodes. Consider the 20-pin QFN package constraints for thermal dissipation and trace routing. Verify that the 18V maximum input rating aligns with the system's supply voltage requirements.

Hot Swap Controllers Part Context

This part belongs to the LTC4227 family of power management ICs from Analog Devices. It is functionally related to the LTC4227CUFD-4, differing primarily in the commercial versus industrial temperature grade designation. The series focuses on providing robust power path management solutions for embedded systems requiring high reliability and efficient power distribution.

Hot Swap Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Designers should consult official Analog Devices documentation for potential cross-references or verify compatibility with alternative hot swap controllers based on specific electrical requirements.