ISL3150EIBZ-T7A

Overview

The ISL3150EIBZ-T7A is a single full-duplex RS-422/RS-485 transceiver manufactured by Renesas Electronics. It operates on a single 5V supply and supports data rates up to 12 Mbps. The device features IEC 61000-4-2 ESD protection of ±15 kV (air discharge) and ±8 kV (contact discharge). It utilizes an 8-pin SOIC package with an operating temperature range of -40°C to +85°C. Key electrical characteristics include a shutdown current of less than 1 µA, high-voltage differential outputs, and a receiver input threshold of ±200 mV for noise immunity.

Feature Summary

• IEC 61000-4-2 ESD protection rated at ±15 kV air discharge and ±8 kV contact discharge without latch-up
• High-voltage differential output capability designed for robust communication over long bus lines
• Low power consumption with a dedicated shutdown mode reducing supply current to under 1 µA
• Receiver input hysteresis provides improved noise immunity in electrically noisy environments

Applications

• Industrial automation control systems requiring reliable half-duplex or full-duplex communication
• Building automation networks utilizing RS-485 bus topologies
• Metering applications such as electricity and gas meters needing ESD-resistant interfaces
• Point-of-sale (POS) terminals and payment systems exposed to static discharge risks

Procurement Notes

Verify the specific suffix 'T7A' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 8-pin SOIC footprint matches the target PCB design constraints. Ensure compliance with RoHS directives if applicable to the final product region. Cross-reference the manufacturer's latest datasheet revision to confirm pinout consistency and any minor specification updates since initial release.

Selection Notes

Select this component when a single full-duplex transceiver with integrated ESD protection is required for 5V logic systems. It is suitable for designs prioritizing noise immunity through receiver hysteresis and low standby power via shutdown modes. Consider alternative packages like MSOP if space constraints are tighter, or higher-speed variants if data rates exceed 12 Mbps. Validate thermal performance within the specified -40°C to +85°C industrial range for the intended application environment.

Part Context

This part belongs to the ISL315xE series of RS-422/RS-485 interface ICs from Renesas (formerly Intersil). The series offers various configurations including half-duplex and full-duplex options in different package sizes. The ISL3150EIBZ variant specifically denotes the full-duplex version in an 8-lead SOIC package, providing a balance between performance, protection, and board space efficiency for standard industrial communications.

Replacement Considerations

Direct substitutes within the same family include the ISL3150EIBZ (tube packaging) for non-automated assembly needs. For pin-compatible alternatives with similar specifications, consider other manufacturers' RS-485 transceivers offering comparable ESD ratings and 5V operation. Verify that any replacement maintains the same 12 Mbps data rate and shutdown current specifications to ensure system compatibility.