SI8661BB-B-IS1R

Digital Isolators Overview

The SI8661BB-B-IS1R is a six-channel digital isolator from the Si866x series, manufactured by Skyworks Solutions Inc. It utilizes capacitive coupling technology to provide electrical isolation with a rated insulation voltage of 2500 Vrms. The device supports unidirectional data transmission at a maximum data rate of 150 Mbps and features a typical propagation delay of 8 ns. It operates within a supply voltage range of 2.375 V to 5.5 V and is housed in a 16-pin SOIC-Narrow package. The component is qualified under AEC-Q100 standards for automotive applications and functions reliably across an operating temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Provides robust galvanic isolation between circuits using high-reliability capacitive coupling technology.
• Supports high-speed bidirectional communication interfaces with low propagation delay characteristics.
• Designed for automotive environments with qualification to AEC-Q100 reliability standards.
• Offers flexible power supply operation compatible with various logic voltage domains.

Digital Isolators Applications

• Automotive electronic control units requiring isolated signal transmission
• Industrial automation systems needing reliable noise immunity
• Medical equipment interfaces demanding strict safety isolation
• Power electronics gate drive circuits

Digital Isolators Procurement Notes

Verify the specific suffix IS1R indicates reel packaging when sourcing components. Confirm that the AEC-Q100 qualification aligns with your project's automotive reliability requirements. Ensure the SOIC-Narrow-16 footprint matches your PCB layout constraints. Cross-reference the datasheet for any recent product change notices regarding assembly or material composition updates.

Digital Isolators Selection Notes

Select this component when high channel density and automotive qualification are required. Compare against the SI8660 series if lower insulation voltage suffices for your application. Consider the SI8661BD variant if higher isolation ratings are necessary. Evaluate power consumption metrics against system thermal budgets before finalizing the design choice.

Digital Isolators Part Context

This part belongs to the Si86xx family of digital isolators, which integrates isolation barriers directly onto silicon. The family offers various channel counts and insulation ratings to suit different interface needs. The SI8661BB variant specifically targets general-purpose applications requiring six channels of isolation in a compact surface-mount package.

Digital Isolators Replacement Considerations

• SI8660BB-B-IS1R
• SI8661AB-B-IS1

Digital Isolators FAQ

What is the common-mode transient immunity rating?

The device provides a common-mode transient immunity of 35 kV/µs.

Is this component suitable for automotive use?

Yes, the SI8661BB-B-IS1R is qualified according to the AEC-Q100 standard for automotive applications.