ISOW7821FDWER

Overview

The ISOW7821FDWER is a dual-channel reinforced digital isolator from Texas Instruments, housed in a 16-pin SOIC package. It supports bidirectional and unidirectional data transmission at speeds up to 100 Mb/s with a propagation delay of 13 ns. The device operates on a supply voltage between 3 V and 5.5 V, drawing 21 mA of quiescent current. It provides 5000 Vrms isolation voltage and withstands common-mode transients of 100 kV/µs. Operating temperatures range from -40°C to +125°C, featuring integrated shutdown functionality.

Feature Summary

• Provides reinforced electrical isolation for high-voltage system separation
• Integrates capacitive coupling technology for signal transmission across the isolation barrier
• Includes dedicated shutdown pins to minimize power consumption during idle states

Applications

• Industrial automation control systems requiring galvanic isolation
• Medical equipment safety circuits
• Power metering and energy monitoring interfaces

Procurement Notes

Verify the specific suffix 'FDW' confirms the SOIC-16 package and tape-and-reel shipping configuration. Ensure the component meets RoHS compliance standards required for your assembly process. Confirm that the moisture sensitivity level aligns with your facility's floor life management protocols before soldering.

Selection Notes

Select this model when bidirectional communication is necessary within a dual-channel isolated interface. It is suitable for applications demanding low pulse width distortion and high common-mode transient immunity. Consider alternative channel counts if more than two isolated signals are required.

Part Context

This component belongs to the ISOW78xx family of high-performance digital isolators. It utilizes Texas Instruments' proprietary capacitive isolation technology combined with magnetic coupling for enhanced reliability. The series is designed to replace traditional optocouplers in modern industrial and automotive environments.

Replacement Considerations

The ISOW7821DWER serves as a compatible variant within the same product family, offering identical electrical specifications but potentially differing in packaging or shipping format.