SI8661BB-AUR

Digital Isolators Overview

The SI8661BB-AUR is a general-purpose digital isolator from the Si866x series, manufactured by Skyworks Solutions Inc. It features six channels configured as five forward and one reverse path. The device utilizes capacitive coupling technology to provide electrical isolation with a rated insulation voltage of 2500 Vrms. It supports data rates up to 150 Mb/s and operates within a supply voltage range of 2.5 V to 5.5 V. The component is housed in a 16-lead SSOP package with a width of 3.90 mm. It is qualified for automotive applications under AEC-Q100 standards and functions reliably across an operating temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides high-speed digital signal transmission via capacitive coupling isolation
• Configured with five forward and one reverse channel for versatile interface needs
• Qualified for automotive environments ensuring reliability under strict standards
• Operates on a single power supply ranging from 2.5 V to 5.5 V

Digital Isolators Applications

• Automotive electronic control units requiring galvanic isolation
• Industrial communication interfaces such as CAN and LIN bus systems
• Power electronics gate drive circuits for motor control
• Medical equipment requiring patient isolation barriers

Digital Isolators Procurement Notes

Verify the specific suffix 'AUR' corresponds to the tape-and-reel packaging format when ordering. Confirm that the 2500 Vrms insulation rating meets the safety requirements of your target application. Ensure the SSOP-16 footprint matches your PCB layout constraints. Check for RoHS compliance status if required by your manufacturing standards. Validate the AEC-Q100 qualification level against your automotive grade specifications.

Digital Isolators Selection Notes

Select this component when a unidirectional isolator with asymmetric channel distribution is required. The 150 Mb/s data rate suits most standard automotive and industrial protocols. Consider the 2500 Vrms isolation barrier for basic protection levels. The wide operating temperature range allows use in harsh environments. Compare against other Si866x variants if higher isolation voltages or bidirectional channels are needed.

Digital Isolators Part Context

This part belongs to the Skyworks Si866x family of digital isolators. These devices replace traditional magnetic couplers and optocouplers in many designs. The family offers various channel configurations and isolation ratings. The SI8661 variant specifically provides the 5-forward/1-reverse topology. This configuration is common in microcontroller-to-peripheral communication links.

Digital Isolators Replacement Considerations

The SI8661BB-AU is the tube-packaged equivalent of this reel-part. Verify pinout compatibility before substituting with other Skyworks isolators. Cross-reference with competitors only if electrical parameters match exactly.