SI88620EC-ASR

Overview

The SI88620EC-ASR is a dual-channel unidirectional digital isolator from Skyworks Solutions, housed 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 with a typical common-mode transient immunity of 40 kV/µs. Key timing parameters include a maximum propagation delay of 18 ns, rise and fall times of 2.5 ns, and a pulse width distortion of 4.5 ns. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Provides high-speed signal isolation with 100 Mb/s data rate capability for reliable communication across isolation barriers.
• Features robust noise immunity characterized by a typical common-mode transient immunity of 40 kV/µs.
• Offers wide operating voltage flexibility supporting both 3 V and 5.5 V logic interfaces without requiring shutdown functionality.

Applications

• Industrial automation systems requiring galvanic isolation between control circuits and field devices
• Programmable logic controller (PLC) input/output modules for safe signal transmission
• Medical equipment interfaces needing high-reliability electrical isolation

Procurement Notes

Verify the specific suffix ASR against official Skyworks documentation to confirm reel packaging and moisture sensitivity level requirements. Ensure the selected variant matches the required SOIC-20 footprint and thermal specifications for your target application environment before finalizing procurement orders.

Selection Notes

Select this component when designing systems that require bidirectional data flow using two separate unidirectional channels rather than a single bidirectional gate. Consider the 20-pin SOIC package constraints and verify that the 5000 Vrms isolation rating meets the safety standards of your specific end-product design.

Part Context

This part belongs to the Si88x2x series of general-purpose digital isolators. It utilizes capacitive coupling technology to replace traditional optocouplers, offering improved performance in terms of speed, power consumption, and size while maintaining high reliability in harsh industrial environments.

Replacement Considerations

SI88620BC-ASR

FAQ

Does the SI88620EC-ASR include an integrated DC-DC converter?

No, this device does not contain an isolated power supply; it requires external power domains on both sides of the isolation barrier.

What is the polarity configuration of the channels?

The SI88620EC-ASR features two unidirectional channels, meaning data flows only from the input side to the output side.