LTC4310CMS-2#PBF

Overview

The LTC4310CMS-2#PBF is a hot-swappable I2C isolator manufactured by Analog Devices Inc. It provides bidirectional data transfer across an isolation barrier using combined capacitive and magnetic coupling technologies. The device operates within a supply voltage range of 2.7V to 5.5V and supports data rates up to 400kb/s. Key electrical specifications include a propagation delay of 170ns, an operating supply current of 6.5mA, and an insulation voltage rating of 1500Vrms. It is housed in a compact MSOP-10 surface-mount package suitable for space-constrained designs.

Feature Summary

• Integrates both capacitive and magnetic coupling mechanisms to ensure robust signal integrity across the isolation barrier.
• Supports bidirectional data transmission for standard I2C bus protocols without requiring separate transmit and receive channels.
• Designed specifically for hot-swap applications to protect downstream circuitry during live insertion or removal events.

Applications

• Isolating I2C buses in systems with mixed voltage domains
• Protecting sensitive control interfaces in hot-pluggable peripheral devices
• Providing galvanic isolation in industrial sensor networks

Procurement Notes

Verify component authenticity through authorized distributors as availability may be restricted. Confirm that the specific suffix matches the required pinout and isolation ratings. Check for recent product change notifications regarding package or material updates. Ensure compliance with RoHS directives if applicable to your manufacturing region. Validate lead times due to potential limited stock situations.

Selection Notes

Select this component when high-reliability isolation is required for bidirectional I2C communication. Consider the 1500Vrms insulation rating for safety-critical applications. Evaluate the 170ns propagation delay against system timing requirements. Compare power consumption against other isolators if battery life is a primary constraint.

Part Context

This part belongs to the LTC4310 series of hot-swappable I2C isolators. It complements other interface protection devices like the LTC4312 multiplexers and LTC4313 accelerators. The series focuses on providing safe connectivity for I2C buses in environments where voltage differences or transient faults are present.

FAQ

What type of isolation technology does the LTC4310CMS-2#PBF utilize?

It utilizes a combination of capacitive coupling and magnetic coupling to transmit signals across the isolation barrier.

Is the data flow direction configurable?

No, the device supports bidirectional data transfer inherently and does not require configuration for direction control.