IL 3585

Overview

The IL3585 is a galvanically isolated, high-speed differential bus transceiver designed for bidirectional data communication on balanced transmission lines. It supports data rates up to 40 Mbps and operates with a supply voltage range of 3V to 5.5V. The device features low propagation delay of 20 ns and pulse skew of 5 ns. It provides 2,500 Vrms isolation strength and includes thermal shutdown protection. The component complies with ANSI RS-485 standards and offers robust ESD protection.

Feature Summary

• Galvanic isolation for noise reduction and ground loop elimination
• High-speed differential signaling capability for reliable data transfer
• Integrated thermal shutdown for operational safety
• Direct interface compatibility with standard microcontrollers

Applications

• Industrial automation control systems
• Motor control cabinets
• Balanced transmission line communication networks
• Bidirectional data communication nodes

Procurement Notes

Verify the specific suffix (e.g., -3E) against the required package type and temperature rating. Confirm isolation voltage ratings match system safety requirements. Ensure compliance with relevant industrial standards such as UL 1577 or IEC 61010-2001 if applicable to the final equipment. Cross-reference pinouts with existing designs to prevent integration errors.

Selection Notes

Select this component when high-speed RS-485 communication requires galvanic isolation. It is suitable for environments with significant electrical noise or differing ground potentials. Consider the 40 Mbps limit for bandwidth requirements. Evaluate the narrow SOIC package constraints against available PCB space. Verify power supply compatibility within the 3V to 5.5V range.

Part Context

Part of the IsoLoop family utilizing giant magnetoresistive (GMR) technology. Designed specifically for robust industrial communication interfaces. Offers superior common-mode transient immunity compared to optical isolators. Provides a compact solution for space-constrained embedded systems requiring reliable serial data transmission.

Replacement Considerations

Consult manufacturer cross-reference tools for parametrically similar parts. Verify that substitutes maintain equivalent isolation voltage and data rate specifications. Ensure package dimensions and pin configurations are compatible with existing footprints.