ISOW7721FDFMR

Overview

The ISOW7721FDFMR is a dual-channel digital isolator from Texas Instruments featuring integrated power conversion capabilities. It provides galvanic isolation with reinforced insulation ratings and supports data rates up to 100 Mb/s. The device operates within a supply voltage range of 2.97 V to 5.5 V and functions across an extended temperature range of -40°C to +125°C. Packaged in a 20-pin SOIC (DFM) format, it offers low emissions and low ripple performance suitable for high-reliability industrial applications.

Feature Summary

• Integrated power converter enables single-component isolation solutions
• Reinforced insulation rating ensures safety compliance
• Low electromagnetic interference emissions design
• Supports standard communication protocols including CAN and RS-485

Applications

• Industrial automation systems requiring isolated communication
• Medical equipment needing reinforced isolation barriers
• Power metering and energy management interfaces
• Inverter control circuits in motor drives

Procurement Notes

Verify the specific suffix 'FDFMR' corresponds to the tape-and-reel packaging configuration required for your assembly line. Confirm that the reinforced insulation classification meets the safety standards mandated by your target application's regulatory framework. Ensure compatibility with the 20-pin SOIC footprint during PCB layout validation.

Selection Notes

Select this component when both signal isolation and power transfer are needed across the barrier. It serves as a direct replacement for discrete isolator and DC/DC converter combinations. Consider the 100 Mb/s data rate limit and the specific channel configuration (1/1) against system requirements. Evaluate thermal dissipation needs given the integrated power stage within the SOIC package.

Part Context

This part belongs to the ISOW772x family of digital isolators designed for high-performance isolation applications. Unlike standard isolators, it integrates a power converter, reducing bill-of-materials count. The FDFMR suffix indicates a specific reel-based packaging variant manufactured by Texas Instruments for surface-mount technology integration.

Replacement Considerations

Direct substitutes include other members of the ISOW772x series such as the ISOW7721FDFR or variants with different insulation ratings like the ISO7721 if integrated power is not required. Verify pinout compatibility and insulation voltage ratings before swapping.