ISOW7844FDWER

Overview

The ISOW7844FDWER is a high-performance, reinforced quad-channel digital isolator manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 100 Mb/s. The device features unidirectional signal transmission with zero channels on the input side and four channels on the output side. It provides an insulation voltage of 5000 Vrms and exhibits a propagation delay of 13 ns. The component is housed in a 16-SOIC package and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides reinforced isolation for robust signal integrity in high-noise environments
• Integrates four independent unidirectional channels for efficient multi-signal isolation
• Utilizes capacitive coupling technology for reliable high-speed data transmission

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced safety barriers
• Power electronics control circuits

Procurement Notes

Verify the specific suffix FDWER against official Texas Instruments documentation to confirm the reel packaging configuration. Ensure compatibility with standard SOIC-16 footprints during PCB layout. Cross-reference the datasheet revision history for any recent updates to electrical characteristics or recommended operating conditions before finalizing procurement specifications.

Selection Notes

Select this component when reinforced isolation ratings are mandatory for safety compliance. The quad-channel architecture reduces board space compared to discrete single-channel solutions. Consider the 100 Mb/s data rate limit and 13 ns propagation delay for timing-sensitive applications. Verify that the 5000 Vrms insulation rating meets the specific system isolation requirements.

Part Context

This part belongs to the ISOW784x series of digital isolators from Texas Instruments. The series utilizes proprietary capacitive isolation technology to provide high bandwidth and low power consumption. The ISOW7844 variant specifically offers four isolated channels, distinguishing it from dual-channel counterparts like the ISOW7842. It is designed for general-purpose isolation in demanding industrial and medical environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.