SI8641BD-B-YS0

Digital Isolators Overview

The SI8641BD-B-YS0 is a quad-channel digital isolator from the Si864x series, manufactured by Skyworks Solutions Inc. It features capacitive coupling technology with a 5000 Vrms isolation voltage and supports data rates up to 150 Mb/s. The device operates on a single power supply ranging from 2.5 V to 5.5 V, drawing a typical operating current of 5.2 mA per channel. It provides three forward and one reverse channel configuration within a 16-SOIC package (0.295 inch width). Key electrical characteristics include a propagation delay of 8 ns, rise/fall times of 4 ns, and a common-mode transient immunity of 35 kV/µs. It is qualified under AEC-Q100 standards for automotive applications and functions reliably across an extended temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• High-voltage isolation capability rated at 5000 Vrms using robust capacitive coupling technology.
• Ultra-low power consumption design suitable for energy-efficient systems.
• Automotive qualification ensuring reliability in demanding operational environments.
• High-speed signal transmission with low propagation delay and jitter.

Digital Isolators Applications

• Automotive electronic control units requiring galvanic isolation
• Industrial communication interfaces such as CAN and LIN bus systems
• Medical equipment needing high safety isolation standards
• Power conversion circuits for gate drive isolation

Digital Isolators Procurement Notes

Verify the specific suffix YS0 against official Skyworks documentation to confirm package dimensions and tape-and-reel specifications. Ensure compatibility with your PCB footprint, as the SOIC-16 variant may differ in width from standard versions. Confirm that the AEC-Q100 qualification meets your project's automotive grade requirements. Cross-reference the datasheet revision date to ensure access to the latest electrical parameters and mechanical drawings before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when high isolation voltage and low power consumption are critical. The 150 Mb/s data rate suits most industrial and automotive protocols. Consider the 16-SOIC package size for space-constrained designs. Verify that the unidirectional channel configuration matches your signal flow requirements. Ensure the operating voltage range aligns with your system's logic levels and power supply constraints.

Digital Isolators Part Context

This part belongs to the Si864x family of quad-channel digital isolators. It shares core architectural similarities with other members like the SI8641BT-AS but differs in insulation rating and packaging. The family utilizes Skyworks' proprietary capacitive isolation technology, offering superior performance over traditional transformer-based isolators in terms of size and power efficiency.

Digital Isolators Replacement Considerations

The SI8641BC-B-IS1 is a related part within the same family but offers 3750 Vrms isolation instead of 5000 Vrms. Verify if the reduced isolation rating meets your safety requirements. Both parts share similar pinouts and electrical characteristics, facilitating potential drop-in replacements if voltage ratings allow.