ISOW7841FDWER

Overview

The ISOW7841FDWER is a high-performance, reinforced quad-channel digital isolator from Texas Instruments. It features four forward channels and one reverse channel within a 16-pin SOIC package. The device supports data rates up to 100 Mb/s with a propagation delay of 13 ns. It operates on a supply voltage range of 3 V to 5.5 V and provides an insulation voltage of 5000 Vrms. Key electrical characteristics include a typical rise/fall time of 2 ns, a power dissipation of 1.02 W, and a pulse width distortion of 600 ps. The component functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides reinforced isolation for safety-critical applications
• Integrates capacitive and magnetic coupling technologies
• Includes a shutdown pin for low-power management
• Offers high common-mode transient immunity

Applications

• Industrial automation systems
• Medical equipment signal isolation
• Power metering circuits
• Inverter motor control interfaces

Procurement Notes

Verify the specific suffix 'FDWER' to confirm the tape-and-reel packaging format and lead-free status. Ensure compatibility with moisture sensitivity levels during storage and reflow soldering processes. Cross-reference the manufacturer part number against official distributors to avoid counterfeit components. Confirm that the SOIC-16 footprint matches the design layout requirements.

Selection Notes

Select this component when four unidirectional channels are required alongside a single bidirectional or reverse channel. Compare power consumption against the ISOW7842 if symmetric channel counts are needed. Evaluate the 100 kV/µs CMTI rating against noise environments in high-voltage switching applications. Consider the thermal performance given the 1.02 W power dissipation in dense PCB layouts.

Part Context

This part belongs to the ISOW78xx family of reinforced digital isolators. It complements variants like the ISOW7842 which offers symmetric channel configurations. The series utilizes combined capacitive and magnetic sensing for robust signal transmission. It serves as a replacement for traditional optocouplers in modern high-speed industrial designs.

Replacement Considerations

The ISOW7842FDWER offers similar isolation but with a 2/2 channel configuration instead of 4/1.