SI88622EC-ASR

Overview

The SI88622EC-ASR is a general-purpose digital isolator from Skyworks Solutions, featuring two unidirectional channels in a 20-SOIC package. It operates on a supply voltage range of 3 V to 5.5 V and supports data rates up to 100 Mb/s. The device provides an insulation voltage of 5000 Vrms and a common-mode transient immunity (CMTI) of 40 kV/µs. Key timing parameters include a propagation delay of 18 ns, rise/fall times of 2.5 ns, and pulse width distortion of 4.5 ns. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides galvanic isolation between circuits using capacitive coupling technology.
• Features high common-mode transient immunity for reliable signal transmission in noisy environments.
• Supports unidirectional data flow with no shutdown control functionality.

Applications

• Industrial automation systems requiring isolated communication interfaces
• Medical equipment needing safe patient isolation barriers
• Power electronics monitoring and control circuits

Procurement Notes

Verify the specific suffix ASR corresponds to the reel packaging configuration when ordering. Confirm that the 5000 Vrms insulation rating meets your system's safety requirements. Ensure compatibility with the 3 V to 5.5 V supply voltage range. Check for moisture sensitivity level handling during storage and assembly processes.

Selection Notes

Select this component for applications requiring robust unidirectional isolation with high CMTI. Compare against other Si88622 variants if bidirectional channels or integrated DC-DC converters are needed. Consider the SOIC-20 footprint constraints and thermal dissipation capabilities for your PCB layout design.

Part Context

This part belongs to the Skyworks Si88622 series of digital isolators. The series offers various channel configurations and insulation ratings. The EC-ASR variant specifically denotes the 5000 Vrms insulation class and reel packaging format within the broader product family.

Replacement Considerations

SI88622EC-ISR is listed as a similar alternative with identical electrical specifications but differs in packaging type.