SI8641BD-B-ISR

Digital Isolators Overview

The SI8641BD-B-ISR is a quad-channel digital isolator from the Si864x series, manufactured by Skyworks Solutions Inc. It features capacitive coupling isolation with a rated insulation voltage of 5000 Vrms. The device supports a data rate of 150 Mb/s and operates within a supply voltage range of 2.375 V to 5.5 V. It provides three forward channels and one reverse channel in a 16-pin SOIC-Wide package. Key electrical parameters include a propagation delay of 8 ns, a common-mode transient immunity (CMTI) of 35 kV/µs, and a pulse width distortion of 4.5 ns. It is qualified under AEC-Q100 standards for automotive applications.

Digital Isolators Feature Summary

• Provides high-speed signal isolation using capacitive coupling technology.
• Features unidirectional channel configuration with three forward and one reverse path.
• Includes shutdown functionality for power management optimization.
• Offers robust common-mode transient immunity for noisy environments.

Digital Isolators Applications

• Automotive electronic control units requiring AEC-Q100 compliance
• Industrial communication interfaces such as CAN and LIN buses
• Power conversion systems needing galvanic isolation

Digital Isolators Procurement Notes

Verify the specific suffix B-ISR corresponds to the tape-and-reel packaging format required for your assembly line. Confirm that the 16-SOIC wide footprint matches your PCB layout constraints. Ensure the 5000 Vrms isolation rating meets the safety requirements of your target application environment. Check for RoHS compliance status if restricted substances are a concern.

Digital Isolators Selection Notes

Select this component when a 150 Mb/s data rate and 5000 Vrms isolation are necessary. The unidirectional configuration suits applications where signal flow is strictly one-way. Consider the 16-pin SOIC package size against available board space. Verify that the 2.375 V minimum supply voltage aligns with your system's logic levels.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which utilizes Skyworks' proprietary capacitive isolation technology. The family offers various channel configurations and isolation ratings. The SI8641BD variant specifically provides 5 kV isolation with a 3+1 channel split, distinguishing it from other models like the SI8641AB or SI8642BC.

Digital Isolators Replacement Considerations

SI8641BC-B-IS1 offers similar 3.75 kV isolation but in a narrow SOIC package. SI8641AB-B-ISR provides lower 2.5 kV isolation with a 1 Mb/s data rate. SI8650BD-B-ISR provides five channels but lacks the reverse channel configuration.