ISO7631FMDW

Overview

The ISO7631FMDW is a general-purpose digital isolator from Texas Instruments featuring three channels in a 16-SOIC package. It supports a signaling rate of 150 Mbps with a propagation delay of 7 ns. The device operates on a supply voltage range of 2.7 V to 5 V and provides an insulation voltage of 2500 Vrms. It offers a common-mode transient immunity of 25 kV/µs and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides galvanic isolation via capacitive coupling technology for signal transmission between isolated circuits.
• Integrates noise filtering capabilities to enhance signal integrity in electrically noisy environments.
• Supports bidirectional and unidirectional data flow configurations across its three channels.

Applications

• Industrial automation systems requiring robust signal isolation
• Medical equipment needing high-voltage isolation safety
• Power metering applications for accurate data acquisition

Procurement Notes

Verify the specific grade (M-Grade) and packaging configuration against project requirements. Confirm that the SOIC-16 footprint matches the PCB layout. Ensure thermal management aligns with the specified operating temperature range. Check for moisture sensitivity handling procedures during assembly. Validate compliance with relevant industry standards for industrial or medical use cases.

Selection Notes

Select this component when a low-power, three-channel isolator is required for moderate-speed data transmission. Consider the 150 Mbps rate sufficient for most industrial communication protocols. Evaluate the 2500 Vrms isolation rating against system safety requirements. Compare power consumption metrics with alternative isolators if energy efficiency is critical. Ensure the 16-pin SOIC package fits the available board space constraints.

Part Context

This part belongs to the ISO7631FM family of digital isolators designed for general-purpose applications. It complements other variants like the ISO7631FMDWR which shares similar electrical characteristics but differs in reel packaging. The series emphasizes reliability and performance in harsh electromagnetic environments typical of industrial settings.

Replacement Considerations

The ISO7631FMDWR serves as a direct functional substitute with identical electrical specifications, differing only in tape-and-reel packaging instead of tube. Verify pinout compatibility before substitution to ensure seamless integration into existing designs without hardware modifications.