IL 3085E

Overview

The IL3085E is a low-cost isolated RS-485 transceiver utilizing Giant Magnetoresistive (GMR) technology. It features three unidirectional channels with a data rate of 4Mbps and an isolation voltage of 2500Vrms. The device operates on 3V to 5.5V power supplies and provides 7kV bus ESD protection. It includes thermal shutdown protection and meets ANSI RS-485 standards.

Feature Summary

• Utilizes GMR technology for high common mode transient immunity
• Supports up to 32 nodes in RS-485 networks
• Includes thermal shutdown protection for reliability
• Low quiescent supply current operation

Applications

• RS-485 industrial communication networks
• RS-422 data transmission systems
• High-noise environment instrumentation
• Motor control cabinet interfaces

Procurement Notes

Verify the specific package variant, as the datasheet lists QSOP, 0.15-inch SOIC, and 0.3-inch True 8mm 16-pin SOIC options. Confirm that the selected part matches the required isolation certification standards, such as UL 1577 or VDE V 0884-10, for your specific application safety requirements.

Selection Notes

Select this component for applications requiring cost-effective isolation with high noise immunity. Ensure the design supports unidirectional signal flow only. Verify that the system power supply falls within the 3V to 5.5V range and that the thermal management accounts for the built-in shutdown feature.

Part Context

This device belongs to NVE's IsoLoop family of digital isolators. It replaces traditional optocouplers by using magnetic sensing elements instead of LEDs and phototransistors. This architecture offers superior speed and longevity compared to optical isolation methods.

Replacement Considerations

Check for IL3085 variants with different package suffixes if pin compatibility differs. Verify if IL3085-1 is suitable for specific packaging needs.