ISO7730FDBQR

Overview

The ISO7730FDBQR is a Texas Instruments digital isolator featuring three unidirectional channels with capacitive coupling technology. It operates within a supply voltage range of 2.25 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides an insulation voltage of 2500 Vrms and exhibits a propagation delay of 11 ns. It functions reliably across a temperature range of -55°C to +125°C, drawing 17.5 mA of operating current. Packaged in an SSOP-16 format, it includes a shutdown feature and maintains low pulse width distortion.

Feature Summary

• Robust electromagnetic compatibility performance for reliable signal transmission
• High-speed data isolation supporting 100 Mb/s communication rates
• Integrated shutdown functionality for power management control

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing reinforced electrical safety barriers
• Power metering applications with high-voltage separation needs
• General-purpose isolated digital communication interfaces

Procurement Notes

Verify the specific suffix 'F' indicates the standard commercial grade variant distinct from automotive or industrial classifications. Confirm the SSOP-16 package matches your PCB footprint requirements. Ensure the 2500 Vrms insulation rating aligns with your system's safety isolation standards. Check humidity sensitivity handling procedures during assembly. Validate that the unidirectional channel configuration meets your circuit design directionality.

Selection Notes

Choose this component when three independent unidirectional isolation paths are required within a single package. The wide operating temperature range suits harsh environmental conditions. Consider the 11 ns propagation delay for timing-sensitive applications. The capacitive coupling method offers high common-mode transient immunity. Evaluate the 17.5 mA current consumption against total system power budgets.

Part Context

This part belongs to the ISO7730 series of digital isolators from Texas Instruments. It shares core specifications with variants like ISO7730DBQR but differs in packaging and specific grading. The series utilizes advanced capacitive isolation technology to provide robust signal integrity across isolation barriers while maintaining small form factors suitable for dense circuit board layouts.

Replacement Considerations

ISO7730DBQR serves as a direct functional substitute with identical electrical characteristics but may differ in package type or specific manufacturing lot details. Verify pinout compatibility before substitution. Ensure the replacement part meets the same insulation voltage and temperature range requirements for your application.