LTC4310CDD-2#TRPBF

Overview

The LTC4310CDD-2#TRPBF is a hot-swappable I2C digital isolator manufactured by Analog Devices Inc. It utilizes magnetic coupling technology to provide bidirectional isolation for I2C bus lines, supporting data rates up to 400 kHz. The device operates within a supply voltage range of 2.7 V to 5.5 V and is designed for surface-mount installation in a compact 10-lead DFN package measuring 3 mm x 3 mm with an exposed pad. It functions as a unidirectional isolator channel pair, enabling safe connection between systems operating at different ground potentials during live insertion events.

Feature Summary

• Provides galvanic isolation for I2C bus signals using proprietary magnetic coupling technology
• Supports hot-swap operations by managing bus state during live insertion and removal
• Ensures signal integrity for standard I2C communication protocols up to specified speeds

Applications

• Isolating I2C buses in hot-swappable peripheral modules
• Protecting main system controllers from fault conditions on external bus segments
• Connecting mixed-voltage domains in industrial instrumentation

Procurement Notes

Verify the specific suffix TRPBF indicates tape-and-reel packaging when sourcing components. Confirm that the CDD-2 designation corresponds to the correct pinout and isolation rating for your schematic design. Ensure compatibility with your target I2C clock frequency requirements before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring robust isolation for I2C interfaces subjected to frequent physical connection changes. It is suitable for applications needing protection against ground potential differences without compromising data transmission reliability. Consider package size constraints and thermal management requirements associated with the DFN form factor.

Part Context

This part belongs to the LTC4310 family of hot-swappable I2C isolators from Analog Devices. It serves as a critical interface component in systems where electrical safety and signal integrity must be maintained across isolated boundaries. The device complements other power management and interface solutions within the manufacturer's portfolio for complex embedded designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence with alternative I2C isolators if supply constraints exist, ensuring matching isolation voltage ratings and data rate capabilities.