SI86SQ44EB-AU

Digital Isolators Overview

The SI86SQ44EB-AU is a Skyworks Solutions automotive-grade digital isolator featuring four unidirectional channels with capacitive coupling technology. It provides 2500 Vrms isolation voltage and supports data rates up to 150 Mbps. The device operates within a supply voltage range of 2.25 V to 5.5 V and offers a common-mode transient immunity (CMTI) of 150 kV/µs. Propagation delays are specified at 42 ns maximum, with typical rise and fall times of 2.5 ns. It is housed in a 16-QSOP package and complies with AEC-Q100 standards for operation between -40°C and +125°C.

Digital Isolators Feature Summary

• Capacitive coupling technology ensures high reliability and robust signal integrity across the isolation barrier.
• Automotive qualification aligns with AEC-Q100 standards for demanding environmental conditions.
• High common-mode transient immunity supports stable operation in electrically noisy environments.

Digital Isolators Applications

• Automotive powertrain control systems
• Electric vehicle battery management systems
• Motor drive interfaces

Digital Isolators Procurement Notes

Verify that the specific suffix 'AU' corresponds to the tube packaging format rather than tape-and-reel options. Confirm the 'EB' designation matches the required channel configuration and polarity specifications for the target design. Ensure the component meets the necessary AEC-Q100 grade requirements for the intended automotive application environment.

Digital Isolators Selection Notes

Select this component when four isolated channels are required for bidirectional or unidirectional data transfer in automotive contexts. Consider the 150 Mbps data rate capability for high-speed communication needs. Evaluate the 2500 Vrms isolation rating against system voltage requirements. The 16-QSOP package size should be compatible with the available PCB footprint constraints.

Digital Isolators Part Context

This part belongs to the Si86SQ4x family of ultra-low-power digital isolators designed specifically for automotive applications. It utilizes Skyworks' proprietary capacitive isolation technology to provide galvanic isolation without the limitations of optical components. The series is engineered to meet stringent automotive reliability standards while maintaining low power consumption profiles.

Digital Isolators Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include SI86SQ44BB-AU and SI86SQ44EB-AUR. Verify that any replacement maintains the same 16-QSOP package outline and AEC-Q100 automotive qualification status to ensure mechanical and regulatory compatibility.