LTC4310CDD-1#PBF

Overview

The LTC4310CDD-1#PBF is a hot-swappable I2C isolator manufactured by Analog Devices Inc. It operates within a supply voltage range of 3 V to 5.5 V and draws a typical operating current of 6.5 mA. The device provides bidirectional signal isolation with an insulation voltage rating of 1500 Vrms. Signal propagation delay is specified at 170 ns, supporting data rates up to 400 kb/s. It functions reliably across an operating temperature range from 0°C to +70°C. The component utilizes both capacitive and magnetic coupling for isolation and is housed in a DFN-10 surface-mount package.

Feature Summary

• Provides galvanic isolation for hot-swappable I2C bus applications using combined capacitive and magnetic coupling technologies.
• Supports bidirectional signal transmission with integrated shutdown functionality for power management control.

Applications

• Hot-swappable I2C bus isolation
• Digital isolator interfaces
• I2C slave device extension

Procurement Notes

Verify the specific suffix and package type against official Analog Devices documentation before procurement. Confirm availability status as supply may be restricted or subject to factory special orders. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Selection Notes

Select this component when bidirectional I2C isolation is required for hot-swap scenarios. Consider the 1500 Vrms insulation rating and 170 ns propagation delay for timing-sensitive designs. Verify that the DFN-10 package fits the PCB layout constraints and that the 3 V to 5.5 V supply range aligns with system power rails.

Part Context

This part belongs to the LTC4310 series of digital isolators designed specifically for I2C communication lines. It addresses the need for safe hot-plugging in systems where buses must be isolated from high-voltage transients or ground potential differences while maintaining standard I2C protocol integrity.

Replacement Considerations

LTC4310CMS-1#PBF