SI8711BC-B-IS

Digital Isolators Overview

The SI8711BC-B-IS is a unidirectional digital isolator from Skyworks Solutions, featuring one channel with capacitive coupling technology. It supports a data rate of 15 Mb/s and provides an isolation voltage of 3750 Vrms. The device operates within a supply voltage range of 3 V to 30 V, consuming 1.7 mA of working power current. Key timing parameters include a propagation delay of 60 ns, a maximum rise time of 15 ns, and a maximum fall time of 5 ns. It is qualified under AEC-Q100 standards and functions reliably across a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Capacitive coupling isolation for robust signal transmission
• AEC-Q100 automotive qualification for reliability
• Unidirectional single-channel design
• LED emulator input compatibility

Digital Isolators Applications

• Automotive electronic control units
• Industrial motor drives
• Power supply feedback loops
• General-purpose isolated communication interfaces

Digital Isolators Procurement Notes

Verify the specific suffix 'B' indicates the correct package variant and internal configuration against the official Skyworks datasheet. Confirm AEC-Q100 qualification status if automotive application is required. Ensure the SOIC-8 package width matches the PCB footprint requirements. Check for moisture sensitivity level handling instructions during storage and reflow processes.

Digital Isolators Selection Notes

Select this component when a single unidirectional channel with high common-mode transient immunity is needed. The 15 Mb/s speed suits moderate-speed digital signals. Consider the 3.75 kVrms isolation barrier for safety-critical applications. Verify that the 1.7 mA quiescent current fits the system power budget constraints compared to higher-speed alternatives.

Digital Isolators Part Context

This part belongs to the Si871x family of digital isolators. It serves as an optocoupler replacement in compact SOIC-8 packages. The series offers various channel counts and speeds, with this specific model focusing on unidirectional automotive-grade performance. It integrates capacitive isolation technology to replace traditional optical components.

Digital Isolators Replacement Considerations

SI8711CC-B-IS (Lower speed variant)

Digital Isolators FAQ

What is the common-mode transient immunity (CMTI) specification?

The datasheet specifies a CMTI of 35 kV/µs.

Does this device support bidirectional signaling?

No, the SI8711BC-B-IS is designed exclusively for unidirectional channels.