ISL31492EIUZ-T

Overview

The ISL31492EIUZ-T is a half-duplex RS-485/RS-422 transceiver in an 8-lead MSOP package. It operates at data rates up to 250kbps with a typical quiescent supply current of 2.3mA and shutdown current of 10µA. The device supports a 5V supply (4.5V to 5.5V) and functions within a temperature range of -40°C to +85°C. Bus pins withstand ±60V fault protection and ±25V common mode voltage, exceeding standard requirements.

Feature Summary

• Fault protected bus pins withstand up to ±60V
• Extended common mode range up to ±25V
• Full fail-safe receiver design for open or shorted inputs
• Hot plug capability maintains three-state outputs during power transitions

Applications

• Utility meters and automated meter reading systems
• High node count communication networks
• PROFIBUS and field bus networks
• Security camera networks
• Industrial process control systems

Procurement Notes

Verify the specific ordering suffix against manufacturer documentation to confirm tape and reel packaging specifications. Confirm that the MSOP package variant meets creepage and clearance requirements for the intended maximum fault voltage application before finalizing procurement.

Selection Notes

Select this component for designs requiring half-duplex communication with robust fault protection. Ensure the system accommodates the 250kbps data rate limit and verify that the 8-lead MSOP package dimensions fit the available PCB space while maintaining adequate thermal dissipation characteristics.

Part Context

This part belongs to the ISL3149xE family of 5V differential transceivers designed to exceed RS-485 and RS-422 standards. The series includes variants with different duplex modes and data rates, all sharing the core feature set of high overvoltage tolerance and low power consumption for industrial environments.

Replacement Considerations

Consult the ISL32490E Series datasheet for exact replacement options if upgrading from older generations. Verify pin compatibility and electrical parameter alignment when substituting other half-duplex RS-485 transceivers in existing designs.