LTC4310IDD-2#TRPBF

Overview

The LTC4310IDD-2#TRPBF is a hot-swappable I²C isolator manufactured by Analog Devices Inc. It provides bidirectional communication between two I²C buses with isolated grounds. The device operates within a supply voltage range of 2.7 V to 5.5 V and supports data rates up to 400 kb/s. Key electrical characteristics include an operating supply current of 6.5 mA, a propagation delay time of 170 ns, and an insulation voltage of 1500 Vrms. It utilizes capacitive and magnetic coupling for isolation and is housed in a 10-DFN package.

Feature Summary

• Provides bidirectional I²C communication across isolated ground domains
• Supports hot-swap operations without bus corruption
• Utilizes capacitive and magnetic coupling for signal transmission

Applications

• Isolating I²C buses in systems with different ground potentials
• Protecting sensitive control circuits from high-voltage transients
• Enabling safe communication in hot-swappable peripheral interfaces

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing. Confirm the manufacturer part number matches exactly to ensure correct isolation specifications and pinout. Check for RoHS compliance documentation as required by project standards. Ensure the component is sourced from authorized distributors to guarantee authenticity and traceability.

Selection Notes

Select this component when bidirectional I²C isolation is required with support for hot-swap events. It is suitable for applications needing protection against ground potential differences exceeding standard logic levels. Consider the 1500 Vrms insulation rating for safety requirements. Verify that the 400 kb/s speed meets the system's timing constraints.

Part Context

This part belongs to the LTC4310 series of digital isolators designed specifically for I²C interfaces. It addresses the need for robust communication in mixed-signal environments where ground loops or high voltages are present. The series offers solutions for maintaining signal integrity while providing galvanic isolation between controller and peripheral sections.

Replacement Considerations

Public confirmed substitute part numbers: LTC4310IDD-2#PBF.