ISL3152EIBZ-T7A

Overview

The ISL3152EIBZ-T7A is a half-duplex RS-485/RS-422 differential transceiver manufactured by Renesas Electronics. It operates within a supply voltage range of 4.5 V to 5.5 V and supports data rates up to 115 kbps. The device features high output drive with a typical $V_{OD}$ of 3.1 V into a 54 Ω load, enabling long bus segments. It provides ±16.5 kV IEC61000-4-2 ESD protection on bus pins and withstands ±100 V transient overvoltage. The receiver inputs offer full fail-safe functionality, ensuring high outputs for open or shorted conditions. Packaged in an 8-pin SOICN (MOP) with a 1.3 mm pitch, it operates from -40°C to +85°C.

Feature Summary

• High ESD protection rated at ±16.5 kV per IEC61000-4-2 without latch-up
• True 1/8 unit load configuration allowing up to 512 devices on the bus
• Hot plug capability maintaining high-impedance states during power transitions
• Full fail-safe receiver design for robust signal integrity under fault conditions

Applications

• Industrial automation networks requiring robust RS-485 communication
• Building automation systems utilizing multi-drop bus topologies
• Metering applications needing high noise immunity and low bus current
• Process control systems operating in electrically noisy environments

Procurement Notes

Verify the specific suffix T7A indicates tape-and-reel packaging when sourcing components. Confirm that the ordering part number matches the exact package type and moisture sensitivity level required for the assembly process. Cross-reference the manufacturer's latest datasheet to ensure compliance with current RoHS standards and material declarations before finalizing procurement orders.

Selection Notes

Select this component for designs requiring standard RS-485 performance with enhanced ESD resilience. The 115 kbps data rate suits lower-speed industrial protocols where power consumption and cost are prioritized over high-speed throughput. Ensure the system architecture supports half-duplex operation and utilizes the active-high driver enable and active-low receiver enable logic signals for proper control.

Part Context

This part belongs to the ISL315xE family of 5V-powered differential transceivers designed for RS-485 and RS-422 applications. The family includes both half-duplex and full-duplex variants with varying data rate capabilities. The ISL3152E specifically addresses the need for high noise immunity and large node counts in multi-drop configurations while maintaining low standby power consumption.

Replacement Considerations

Direct functional equivalents within the same series include the ISL3152EIBZ for tube packaging. Other family members like the ISL3155E offer similar electrical characteristics but may differ in package style or specific enable pin configurations. Verify pin compatibility and electrical parameters against the target application requirements before substitution.