ISO7420FCCD

Overview

The ISO7420FCCD is a low-power, dual-channel digital isolator from Texas Instruments. It features capacitive coupling technology for signal transmission across isolation barriers. The device operates with a supply voltage range of 3.3 V to 5 V and supports data rates up to 50 Mb/s. It provides an insulation voltage of 2500 Vrms and exhibits a typical propagation delay of 7 ns. The component is housed in an SOIC-8 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Dual-channel unidirectional signal isolation using capacitive coupling
• Low power consumption suitable for energy-efficient designs
• High insulation voltage rating for robust safety isolation
• Wide operating temperature range for industrial environments

Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing high-voltage isolation barriers
• Power metering applications for signal integrity
• Inverter drives and motor control circuits

Procurement Notes

Verify the specific suffix 'CD' indicates the tape and reel packaging format when ordering. Confirm that the required insulation clearance and creepage distances meet the safety standards of the final application. Ensure the PCB footprint matches the SOIC-8 package dimensions specified in the official datasheet to guarantee proper assembly and thermal performance.

Selection Notes

Select this component when dual-channel isolation is required with low power constraints. Compare propagation delay specifications against system timing requirements. Evaluate the insulation voltage rating against the maximum transient voltages present in the circuit. Consider the operating temperature range to ensure reliability under extreme environmental conditions.

Part Context

This part belongs to the ISO7420 family of digital isolators designed by Texas Instruments. The family offers various packaging options and insulation ratings to suit different design needs. The ISO7420 series utilizes advanced capacitive isolation technology to provide reliable signal transmission while maintaining electrical safety between isolated domains.

Replacement Considerations

Check for ISO7420 variants with different suffixes such as 'EDR' or 'MDR' which may share similar electrical characteristics but differ in packaging or specific qualification levels. Verify pin-to-pin compatibility before substitution.