SI8642EA-B-IU

Digital Isolators Overview

The SI8642EA-B-IU is a four-channel digital isolator from Skyworks Solutions, utilizing capacitive coupling technology for signal transmission. It operates within a supply voltage range of 2.375 V to 5.5 V and supports data rates up to 150 Mb/s. The device features a propagation delay of 8 ns with rise and fall times of 4 ns maximum. It provides an isolation voltage of 1000 Vrms and is housed in a QSOP-16 package. The component functions reliably across an operating temperature range of -40 °C to +125 °C.

Digital Isolators Feature Summary

• Capacitive coupling architecture ensures high reliability and immunity to magnetic fields
• Four independent channels support unidirectional signal isolation
• Integrated shutdown function reduces power consumption during inactive states

Digital Isolators Applications

• Industrial automation control systems
• Medical equipment signal isolation
• Power electronics gate drive circuits

Digital Isolators Procurement Notes

Verify the specific suffix 'B-IU' corresponds to the QSOP-16 package and standard operating temperature range when sourcing. Confirm that the 1000 Vrms isolation rating meets the safety requirements of the target application. Ensure compatibility with the 2.375 V to 5.5 V supply voltage domain. Check for RoHS compliance status if required by project specifications.

Digital Isolators Selection Notes

Select this component when a four-channel isolator with 1000 Vrms isolation is required. It is suitable for applications needing 150 Mb/s data throughput and low propagation delay. Consider the QSOP-16 package constraints for PCB layout. Compare against other Si864x variants if higher isolation voltages or bidirectional channels are needed.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators from Skyworks Solutions. The family utilizes proprietary CMOS capacitive isolation technology. These devices offer robust performance in noisy environments compared to traditional optical isolators. The series includes various channel counts and isolation voltage ratings.

Digital Isolators Replacement Considerations

SI8642BA-B-IU offers similar functionality but may differ in specific electrical characteristics or package dimensions. Verify pinout compatibility and isolation voltage ratings before substitution.