ISO6520FDR

Overview

The ISO6520FDR is a dual-channel, unidirectional digital isolator from Texas Instruments, housed in an SOIC-8 package. It supports data rates up to 50 Mbps with a typical propagation delay of 11 ns and rise/fall times of 5.3 ns. The device operates on supply voltages between 1.71 V and 5.5 V and features a robust SiO2 isolation barrier providing 707 Vrms insulation voltage. It offers a typical common-mode transient immunity of ±150 kV/μs and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Dual-channel functional isolation with CMOS outputs
• Robust silicon dioxide (SiO2) isolation barrier
• High-speed data transmission capability

Applications

• Industrial automation systems
• Medical equipment signal isolation
• Power metering applications

Procurement Notes

Verify the specific suffix 'FDR' indicates the reel packaging format when ordering. Confirm that the component meets RoHS compliance requirements for your region. Ensure the SOIC-8 footprint matches your PCB design constraints. Check for moisture sensitivity level ratings if lead-free soldering processes are utilized during assembly.

Selection Notes

Select this component for applications requiring galvanic isolation between low-voltage logic and higher voltage domains. The 50 Mbps rate suits moderate-speed communication interfaces. Consider the 1.8V logic support for compatibility with modern microcontrollers. The wide operating temperature range ensures reliability in harsh environments.

Part Context

This part belongs to the ISO652x family of general-purpose dual-channel functional isolators. These devices are designed to replace traditional optocouplers in space-constrained designs. The family emphasizes high reliability and small form factors while maintaining essential isolation characteristics for industrial and commercial use cases.

Replacement Considerations

Direct substitutes include other members of the ISO652x series such as ISO6520DR or ISO6520FREUR, depending on required packaging variations. Verify pinout compatibility before swapping packages. Ensure replacement parts maintain the same 50 Mbps data rate and isolation voltage specifications.