SI88620ED-ISR

Overview

The SI88620ED-ISR is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. It features two unidirectional channels with a data rate of 100 Mb/s and an isolation voltage of 5000 Vrms. The device utilizes capacitive coupling technology and operates within a supply voltage range of 3 V to 5.5 V. Key electrical parameters include a propagation delay of 18 ns, rise/fall times of 2.5 ns, and a common-mode transient immunity (CMTI) of 40 kV/µs. It is housed in a 20-SOIC package.

Feature Summary

• Integrates a high-efficiency DC-DC converter providing up to 2 W of isolated power output.

Applications

• Industrial automation systems requiring galvanic isolation
• Power electronics and motor control circuits
• Medical equipment with safety isolation requirements

Procurement Notes

Verify the specific suffix 'ISR' to confirm the reel packaging format and temperature grade. Confirm RoHS compliance status as required by your assembly specifications. Check for the NRND (Not Recommended for New Designs) status if initiating new projects. Ensure ESD handling procedures are followed during installation.

Selection Notes

Select this component when bidirectional isolation is not required. The integrated DC-DC converter simplifies design by eliminating external magnetic components. Verify that the 100 Mb/s data rate meets system timing requirements. Ensure the SOIC-20 footprint matches the PCB layout constraints.

Part Context

This part belongs to the Si886xx ISOvolt family, which combines digital isolation with on-chip power conversion. It serves as a replacement for traditional optocoupler solutions in applications demanding higher reliability and lower power consumption. The series supports various channel counts and insulation ratings.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio. Verify that substitute parts maintain the 5000 Vrms isolation rating and 2 W DC-DC output capability. Ensure thermal performance matches the original design constraints.