SI86SO21BC-AS

Digital Isolators Overview

The SI86SO21BC-AS is a dual-channel digital isolator from the Si86SO2x series, designed for automotive applications. It features capacitive coupling isolation with a 3.75 kVrms insulation voltage rating and supports data rates up to 150 Mbps. The device operates on a single supply voltage ranging from 2.5 V to 5.5 V, consuming low power. It provides two unidirectional channels with inverting outputs, packaged in an SOIC-NB-8 format. The component is rated for operation across an extended temperature range of -40°C to +125°C, ensuring reliability in harsh environments.

Digital Isolators Feature Summary

• Automotive-grade qualification for reliable performance in vehicle systems
• Capacitive coupling technology providing high-speed signal transmission
• Inverting output configuration for specific logic interface requirements

Digital Isolators Applications

• Automotive gate driver circuits
• On-board charging (OBC) systems
• DC-DC converter control interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'AS' indicates the automotive grade and standard tube packaging configuration. Confirm that the inverting output polarity matches the system design requirements, as this variant differs from non-inverting counterparts. Ensure compatibility with the required operating voltage range and thermal management specifications for the intended application environment.

Digital Isolators Selection Notes

Select this component when automotive certification and inverting logic are required. Compare against non-inverting variants if standard logic levels are needed. Consider the SOIC-NB-8 package constraints for PCB layout. Verify that the 3.75 kVrms isolation barrier meets the safety standards of the target application domain.

Digital Isolators Part Context

This part belongs to the Si86SO2x family of automotive digital isolators. It shares core isolation technology with other members but is distinguished by its inverting output function and specific automotive packaging. The series emphasizes robustness and low power consumption for electric vehicle and industrial automotive subsystems.

Digital Isolators Replacement Considerations

SI86SO21EC-ASR offers similar automotive isolation with reel packaging. SI8621BT-AS provides higher surge immunity but lacks automotive qualification. Verify pinout and output polarity compatibility before substitution.