SI8631ED-ASR

Digital Isolators Overview

The SI8631ED-ASR is an automotive-grade digital isolator from the Skyworks si863x series, housed in a 16-SOIC package. It features three channels with two forward and one reverse direction, utilizing capacitive coupling technology. The device supports a data rate of 150 Mb/s and offers an insulation voltage of 5000 Vrms. Key electrical parameters include a propagation delay of 8 ns, rise/fall times of 4 ns, and a pulse width distortion of 0.2 ns. It operates on a supply voltage between 2.5 V and 5.5 V with a typical current consumption of 3.9 mA. The component provides high common-mode transient immunity of 60 kV/µs and functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Automotive qualification for reliable operation in vehicle environments
• High common-mode transient immunity for noise-resistant signal transmission
• Ultra-low power consumption suitable for energy-efficient designs
• Capacitive coupling isolation providing robust galvanic separation

Digital Isolators Applications

• Automotive gate driver circuits
• On-board charging systems
• Electric vehicle motor control interfaces
• Battery management system communication links

Digital Isolators Procurement Notes

Verify the specific suffix ASR indicates reel packaging when sourcing components. Confirm AEC-Q100 compliance status through official Skyworks documentation for automotive projects. Ensure moisture sensitivity level handling procedures are followed during assembly. Cross-reference the exact part number against manufacturer datasheets to confirm pinout and electrical specifications match design requirements before procurement.

Digital Isolators Selection Notes

Select this component for applications requiring high-speed digital isolation with automotive reliability standards. The 150 Mb/s data rate supports fast communication protocols. Consider the 16-SOIC package dimensions for PCB layout constraints. Evaluate the 5000 Vrms insulation rating against system voltage requirements. Compare power consumption metrics with alternative isolators if battery life is critical.

Digital Isolators Part Context

This device belongs to the si863x family of digital isolators designed by Skyworks Solutions. The series includes variants with different insulation ratings and channel configurations. The ED-ASR variant specifically targets automotive applications with enhanced transient immunity. It complements other parts in the portfolio offering varying speed and power trade-offs for industrial and consumer electronics.

Digital Isolators Replacement Considerations

Check Skyworks documentation for direct pin-compatible alternatives within the si863x family. Verify that substitute parts meet the same AEC-Q100 automotive qualification requirements. Ensure replacement components maintain the 150 Mb/s data rate and 5000 Vrms insulation rating. Confirm package compatibility to avoid PCB redesign efforts.