SI8631AB-AS

Digital Isolators Overview

The SI8631AB-AS is a general-purpose digital isolator from Skyworks Solutions, featuring three independent channels with two forward and one reverse configuration. It utilizes capacitive coupling technology to provide electrical isolation between circuits. The device supports data rates up to 150 Mbps and operates within a supply voltage range of 2.70 V to 5.5 V. It offers an insulation voltage rating of 2500 Vrms and a common-mode transient immunity of 60 kV/µs. The component is qualified for automotive applications under AEC-Q100 standards and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling technology enables high-speed signal transmission without magnetic interference
• Automotive-grade qualification ensures reliability in demanding vehicle environments
• Asymmetric channel configuration provides flexible bidirectional communication support

Digital Isolators Applications

• Automotive powertrain control systems
• Inverter gate drive isolation
• Industrial motor control interfaces

Digital Isolators Procurement Notes

Verify the specific suffix designation against official Skyworks documentation to ensure correct package type and tape/reel specifications. Confirm that the selected variant meets the required thermal management and PCB layout guidelines for surface-mount assembly. Cross-reference the datasheet revision date to validate current parameter tolerances before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component when asymmetric isolation is required for mixed-signal automotive or industrial applications. Ensure the system design accommodates the 16-SOIC package dimensions and thermal dissipation requirements. Validate that the operating voltage range aligns with the target logic levels and that the propagation delay characteristics meet the timing constraints of the communication protocol.

Digital Isolators Part Context

This part belongs to the SI863x series of digital isolators, which are designed for robust performance in noisy environments. The series includes variants with different channel counts and insulation ratings. The SI8631AB-AS specifically addresses applications requiring two-way data transfer with distinct forward and reverse path capabilities, distinguishing it from symmetric isolator models.

Digital Isolators Replacement Considerations

SI8631BB-AS

Digital Isolators FAQ

What is the maximum data rate supported by the SI8631AB-AS?

The device supports data rates up to 150 Mbps.

Is the SI8631AB-AS suitable for automotive applications?

Yes, the component is qualified according to the AEC-Q100 standard for automotive use.