SI86S621BC-AS

Digital Isolators Overview

The SI86S621BC-AS is an automotive-grade digital isolator from the Si86S6x series, manufactured by Skyworks Solutions. It features two unidirectional channels with capacitive coupling isolation technology. The device operates within a supply voltage range of 2.5 V to 5.5 V and supports data rates up to 150 Mb/s. It provides 3750 Vrms insulation voltage and withstands a 10 kV surge capability. The component is housed in an SOIC-NB-8 package, suitable for surface mount installation, and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle environments.
• High-voltage surge immunity providing robust protection against transient electrical disturbances.
• Ultra-low power consumption design optimized for energy-efficient signal transmission.

Digital Isolators Applications

• Automotive battery management systems
• On-board charging infrastructure
• Electric vehicle motor control interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'AS' corresponds to the required tape-and-reel or tube packaging configuration as defined in the official datasheet. Confirm that the automotive grade designation aligns with project requirements. Ensure compatibility with the target PCB footprint for the SOIC-NB-8 package. Cross-reference the manufacturer's latest documentation for any potential lifecycle changes or obsolescence notices before finalizing procurement plans.

Digital Isolators Selection Notes

Select this component when high isolation voltage and automotive reliability are required for bidirectional or unidirectional signal paths. Compare against standard industrial grades if cost sensitivity outweighs the need for AEC-Q100 certification. Consider the SOIC-NB-8 package dimensions for board space constraints. Evaluate power budget requirements against the specified operating current to ensure system efficiency targets are met without additional thermal management.

Digital Isolators Part Context

This part belongs to the Si86S6x family of automotive digital isolators. It shares core isolation architecture with other members like the SI86S621HC-AS but differs in specific packaging and ordering suffixes. The family utilizes Skyworks' proprietary capacitive coupling technology to provide galvanic isolation without magnetic components, distinguishing it from transformer-based isolators in the broader interface IC category.

Digital Isolators Replacement Considerations

Direct substitutes include SI86S621BC-IS and SI86S621BC-ASR, which share identical electrical specifications and channel configurations. Verify package compatibility and moisture sensitivity levels when swapping between tube and reel variants. Ensure the replacement part maintains the same automotive qualification status if required by the application design.

Digital Isolators FAQ

What is the maximum surge voltage rating for the SI86S621BC-AS?

The device is rated for a 10 kV surge capability, ensuring robust performance in high-noise automotive environments.

Does the SI86S621BC-AS support shutdown functionality?

No, the SI86S621BC-AS does not include a shutdown pin; it operates continuously once powered.