SI8642EA-B-YU0R

Digital Isolators Overview

The SI8642EA-B-YU0R is a general-purpose digital isolator from the Si864x series, manufactured by Skyworks Solutions Inc. It features four unidirectional channels with a data rate of 150 Mb/s and an insulation voltage of 1000 Vrms. The device utilizes capacitive coupling for isolation and operates within a supply voltage range of 2.375 V to 5.5 V. Key electrical parameters include a propagation delay of 8 ns, rise/fall times of 4 ns, and a power dissipation of 275 mW. It supports a common-mode transient immunity (CMTI) of 35 kV/µs and functions across a temperature range of -40°C to +125°C. The component is housed in a 16-SSOP package.

Digital Isolators Feature Summary

• Provides robust galvanic isolation via capacitive coupling technology
• Supports high-speed digital signal transmission at 150 Mb/s
• Features high common-mode transient immunity for noise resilience
• Includes shutdown functionality for power management

Digital Isolators Applications

• General-purpose digital isolation in industrial systems
• Isolation between microcontrollers and peripheral devices
• Signal isolation in measurement and control circuits

Digital Isolators Procurement Notes

Verify the specific suffix YU0R against official Skyworks documentation to confirm the 16-SSOP package and tape-and-reel orientation. Ensure the insulation rating of 1000 Vrms meets system safety requirements. Cross-reference the CMTI specification of 35 kV/µs with application noise environments. Confirm RoHS compliance status through current manufacturer declarations.

Digital Isolators Selection Notes

Select this component when a 1000 Vrms isolation barrier is sufficient for the application. The 150 Mb/s data rate suits moderate-speed communication needs. The SSOP package offers a compact footprint for space-constrained designs. Consider the 275 mW power dissipation for thermal management planning. Verify that the unidirectional channel configuration aligns with signal flow requirements.

Digital Isolators Part Context

This part belongs to the Si864x family of digital isolators, which are designed for replacing traditional optocouplers in modern electronic designs. The family offers improved performance metrics including higher speed and lower power consumption compared to legacy technologies. The Si8642 variant specifically provides four isolated channels, making it suitable for multi-signal isolation tasks.

Digital Isolators FAQ

What is the common-mode transient immunity (CMTI) of the SI8642EA-B-YU0R?

The SI8642EA-B-YU0R has a common-mode transient immunity of 35 kV/µs.

Does the SI8642EA-B-YU0R support bidirectional signaling?

No, the SI8642EA-B-YU0R features unidirectional channels only.

What is the maximum operating temperature for this device?

The maximum operating temperature for the SI8642EA-B-YU0R is +125°C.