SI8421BD-D-IS

Digital Isolators Overview

The SI8421BD-D-IS is a Skyworks Solutions digital isolator featuring two channels with unidirectional signal paths. It utilizes capacitive coupling technology to provide an insulation voltage of 5000 Vrms. The device supports data rates up to 150 Mb/s and operates within a supply voltage range of 2.7 V to 5.5 V. Key timing parameters include a propagation delay of 6 ns, a rise time of 5 ns, and a fall time of 3.7 ns. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in a 16-pin SOIC-Wide package.

Digital Isolators Feature Summary

• Provides galvanic isolation via capacitive coupling technology for robust noise immunity.
• Supports high-speed data transmission with a maximum rate of 150 Mb/s.
• Features low propagation delay and minimal pulse width distortion for precise signal integrity.

Digital Isolators Applications

• General-purpose digital isolation in industrial automation systems
• Isolation barriers in medical equipment signal processing
• Communication interface protection in embedded control networks

Digital Isolators Procurement Notes

Verify the specific suffix against official Skyworks documentation to confirm pinout and functional variations. Ensure compliance with RoHS directives as indicated in manufacturer specifications. Confirm moisture sensitivity levels and recommended soldering profiles prior to assembly to prevent package damage during reflow processes.

Digital Isolators Selection Notes

Select this component when bidirectional isolation is not required, as it offers only unidirectional channels. Compare performance metrics such as propagation delay and common-mode transient immunity against alternative isolators. Ensure the operating voltage and thermal requirements align with the system design constraints for reliable long-term operation.

Digital Isolators Part Context

This part belongs to the SI8421 series of digital isolators from Skyworks Solutions. It is designed for applications requiring reliable signal transmission across isolated boundaries. The series emphasizes low power consumption and high reliability, making it suitable for demanding environments where electrical safety and signal fidelity are critical priorities.

Digital Isolators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Skyworks documentation or authorized distributors for verified cross-reference information before implementing any alternative components.