ISO7310FCD

Overview

The ISO7310FCD is a low-power, single-channel digital isolator from Texas Instruments featuring capacitive coupling technology. It operates within a supply voltage range of 3 V to 5.5 V and supports data rates up to 25 Mbps. The device provides an isolation voltage of 3000 Vrms with a common-mode transient immunity of 25 kV/µs. Key electrical parameters include a propagation delay of 32 ns, rise time of 2.5 ns, fall time of 2 ns, and pulse width distortion of 4 ns. It functions reliably across an extended temperature range from -40°C to +125°C and consumes approximately 3 mA of quiescent current.

Feature Summary

• Robust electromagnetic compatibility performance designed for noisy industrial environments
• Low power consumption suitable for energy-efficient system designs
• High common-mode transient immunity ensures signal integrity during fast voltage changes

Applications

• Industrial process control systems requiring galvanic isolation
• Medical equipment needing reliable signal transmission across isolation barriers
• Power metering applications involving high-voltage sensing

Procurement Notes

Verify the specific package variant and marking code against official datasheets before procurement. Ensure compliance with RoHS directives and confirm humidity sensitivity handling requirements during storage and assembly. Cross-reference ordering information with manufacturer documentation to avoid confusion with automotive or reel-packaged variants.

Selection Notes

Select this component when a single unidirectional channel is required for basic or enhanced isolation. Consider the SOIC-8 package constraints and thermal dissipation capabilities. Evaluate the 25 Mbps data rate against system timing requirements and ensure the 3000 Vrms isolation rating meets safety standards for the target application environment.

Part Context

This part belongs to the ISO7310FC series of robust, low-power digital isolators. It shares architectural similarities with other members like the ISO7310FCQDRQ1 but differs in packaging and qualification levels. The series utilizes capacitive coupling for signal transmission, offering a compact alternative to magnetic or optical isolation technologies in space-constrained designs.

Replacement Considerations

Direct substitutes within the same family include ISO7310FC (same function, different package) and ISO7310FCQDRQ1 (automotive qualified). Verify pinout compatibility and insulation ratings when considering cross-series replacements.