ISO6731FDWR

Overview

The ISO6731FDWR is a triple-channel digital isolator from Texas Instruments, housed in a 16-SOIC package. It provides 5000 VRMS isolation ratings and supports data rates up to 50 Mbps. The device operates on a supply voltage range of 2.25 V to 5.5 V with a typical propagation delay of 11 ns. It features high common-mode transient immunity of 100 kV/µs and functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides robust electromagnetic immunity and low emissions for reliable signal transmission
• Offers high common-mode transient immunity to withstand rapid voltage changes
• Supports multiple communication protocols including CAN, RS-232, RS-485, and SPI

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced insulation barriers
• Power metering applications with high-voltage interfaces

Procurement Notes

Verify the specific suffix FDWR against official datasheets to confirm the tape-and-reel packaging format and temperature grade. Ensure compatibility with system voltage levels and isolation requirements before procurement. Cross-reference part numbers with manufacturer documentation to avoid counterfeit components.

Selection Notes

Select this component when cost-sensitive designs require up to 5000 VRMS isolation with triple-channel capability. It is suitable for applications demanding high-speed data transfer at 50 Mbps while maintaining low power consumption. Consider the SOIC-16 footprint for PCB layout constraints.

Part Context

This device belongs to the ISO6731 family of general-purpose digital isolators. It utilizes capacitive coupling technology to isolate CMOS or LVCMOS digital I/Os. The series is designed for applications where size, cost, and performance are critical factors in system design.

Replacement Considerations

ISO6731DWR is a related variant within the same family, differing primarily in packaging configuration.