SI8663EC-AS1R

Digital Isolators Overview

The SI8663EC-AS1R is a Skyworks Si866x series automotive-grade digital isolator featuring six unidirectional channels with three forward and three reverse paths. It utilizes capacitive coupling technology to provide an insulation voltage of 3750 Vrms. The device supports data rates up to 150 Mb/s with a propagation delay of 8 ns. Operating on a supply voltage range of 2.375 V to 5.5 V, it draws a typical operating current of 8.8 mA. Packaged in a 16-SOIC (SOIC-Narrow) format for surface mount installation, it functions within a temperature range of -40°C to +125°C and holds AEC-Q100 qualification.

Digital Isolators Feature Summary

• Automotive-grade reliability certified under AEC-Q100 standards
• High-speed signal transmission at 150 Mb/s with low latency
• Robust galvanic isolation via capacitive coupling architecture
• Six-channel configuration supporting mixed forward and reverse directions

Digital Isolators Applications

• Automotive powertrain control systems
• Electric vehicle battery management systems
• Inverter gate driver interfaces
• On-board charger communication links

Digital Isolators Procurement Notes

Verify the specific suffix AS1R confirms the reel packaging format required for automated assembly processes. Ensure the component matches the 16-SOIC narrow footprint specifications for PCB layout compatibility. Confirm that the AEC-Q100 qualification status aligns with the target automotive application requirements. Cross-reference the manufacturer part number against official Skyworks documentation to validate authenticity and revision level before integration.

Digital Isolators Selection Notes

Select this model when high-speed bidirectional isolation is required in space-constrained automotive designs. The 150 Mb/s data rate suits applications demanding rapid signal processing. The 3750 Vrms insulation rating provides adequate safety margins for high-voltage domains. Consider the low power consumption profile for thermal management in dense circuit boards. Verify channel directionality needs to ensure the three-forward and three-reverse layout matches the system topology.

Digital Isolators Part Context

This component belongs to the Si866x family of digital isolators from Skyworks Solutions. It represents a specialized variant optimized for automotive environments, distinguished by its AEC-Q100 certification. The part shares architectural similarities with other Si866x devices but differs in insulation voltage ratings and packaging configurations. It serves as a critical interface solution between low-voltage control logic and high-voltage power stages in modern electric vehicles.

Digital Isolators Replacement Considerations

• SI8663EC-AS1

Digital Isolators FAQ

What is the maximum data rate supported by this isolator?

The SI8663EC-AS1R supports a maximum data rate of 150 Mb/s.

Does this component include a shutdown function?

No, the SI8663EC-AS1R does not feature a dedicated shutdown pin or function.