ISL3155EIBZ-TR5172

Overview

The ISL3155EIBZ-TR5172 is a half-duplex RS-485/RS-422 differential transceiver manufactured by Renesas Electronics. It operates on a single +5V supply and supports data rates up to 1 Mb/s. The device features high ESD protection rated at ±15kV (IEC61000) for both the bus and I/O pins, ensuring robust performance in electrically noisy environments. It includes a fail-safe receiver that defaults to a logic-high state when inputs are open. The component is housed in an 8-lead SOIC package and is specified for operation over an extended temperature range of -40°C to +85°C.

Feature Summary

• Integrated high-voltage electrostatic discharge protection on all communication lines
• Fail-safe receiver circuitry prevents erroneous logic states during idle conditions
• Low-power shutdown mode significantly reduces quiescent current consumption

Applications

• Industrial automation control networks
• Building automation and security systems
• Data acquisition and instrumentation modules

Procurement Notes

Verify the specific suffix TR5172 against official Renesas documentation to confirm reel packaging specifications. Ensure the procurement channel provides traceability to the original manufacturer. Confirm RoHS compliance status and moisture sensitivity level prior to placement.

Selection Notes

Select this component for applications requiring reliable half-duplex communication over twisted-pair cabling. The integrated ESD protection eliminates the need for external transient suppression components. Verify that the system power supply remains stable within the required voltage limits during operation.

Part Context

This part belongs to the ISL315xE series of low-power RS-485/RS-422 transceivers. The series is designed for industrial environments where signal integrity and noise immunity are critical. The ISL3155 variant specifically offers a non-inverting output configuration suitable for standard bus topologies.

Replacement Considerations

Direct replacements include the ISL3155EIBZ or ISL3155EIBZ-T7A from the same manufacturer family. Cross-manufacturer equivalents must be verified for pin compatibility and electrical parameter alignment.