SI86SL40EC-AS1R

Digital Isolators Overview

The SI86SL40EC-AS1R is a low-power, automotive-grade digital isolator featuring four independent channels with unidirectional signal paths. It utilizes Skyworks' proprietary capacitive coupling technology to provide galvanic isolation between voltage domains. The device offers a high common-mode transient immunity of 150 kV/µs and supports data rates up to 150 Mb/s. It operates within a supply voltage range of 2.25 V to 5.5 V on both sides and is housed in a 16-pin SOIC package.

Digital Isolators Feature Summary

• Capacitive coupling technology for robust galvanic isolation
• Automotive qualification compliant with AEC-Q100 standards
• High common-mode transient immunity for noisy environments
• Low power consumption suitable for battery-operated systems

Digital Isolators Applications

• Automotive infotainment and display interfaces
• On-board charger (OBC) communication
• Battery management system (BMS) isolation
• Electric vehicle (EV) motor control drives

Digital Isolators Procurement Notes

Verify the specific suffix AS1R indicates reel packaging when ordering. Confirm that the EC designation meets required automotive reliability standards for your specific application zone. Ensure ESD protection measures are implemented during handling due to moisture sensitivity classification. Cross-reference pinout compatibility if replacing legacy isolators in existing PCB layouts.

Digital Isolators Selection Notes

Choose this component when high-speed data transmission up to 150 Mb/s is required alongside strict automotive reliability standards. The unidirectional channel configuration suits point-to-point communication links where signal flow is fixed. Consider the 150 kV/µs CMTI rating for applications with rapid switching transients. Evaluate power budget constraints as this series offers optimized low-power operation compared to standard industrial isolators.

Digital Isolators Part Context

This part belongs to the Si86SLx family of low-power digital isolators designed specifically for automotive applications. It complements other Skyworks isolation products by offering a balance of speed, power efficiency, and ruggedness. The family includes variants with different channel counts and insulation voltages to support diverse automotive network architectures.

Digital Isolators Replacement Considerations

Direct replacements may include SI86SL41EC-AS1R or SI86SL42EC-AS1R depending on channel count requirements. Verify pinout compatibility with SOIC-16 packages before substitution. Check datasheet specifications for propagation delay and CMTI to ensure performance parity in critical timing applications.