SI8620BD-B-ISR

Digital Isolators Overview

The SI8620BD-B-ISR is a general-purpose digital isolator manufactured by Skyworks Solutions Inc. It features two independent channels with a high isolation voltage of 5000 Vrms. The device supports data rates up to 150 Mbps and offers a common-mode transient immunity (CMTI) of 35 kV/µs. Key timing parameters include a maximum propagation delay of 13 ns for both low-to-high and high-to-low transitions, with a maximum pulse width distortion of 4.5 ns. It operates on a single supply voltage ranging from 2.5 V to 5.5 V and is available in an 16-SOIC package.

Digital Isolators Feature Summary

• Provides robust electrical isolation between circuits using capacitive coupling technology.
• Supports high-speed digital signal transmission with a data rate of up to 150 Mbps.
• Ensures signal integrity in noisy environments through high common-mode transient immunity.
• Compatible with standard logic families via wide supply voltage operation.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation
• Medical equipment needing safety-certified isolation barriers
• Power electronics control circuits
• Automotive electronic modules

Digital Isolators Procurement Notes

Verify the specific suffix 'BD' indicates the 5000 Vrms isolation rating and 16-pin SOIC package, distinct from the 'EC' variant which offers 3750 Vrms in an 8-pin package. Confirm AEC-Q100 qualification status if automotive application is intended. Ensure compatibility with the required operating temperature range of -40°C to +125°C. Check for RoHS compliance documentation upon order confirmation.

Digital Isolators Selection Notes

Select this component when higher isolation voltage (5000 Vrms) than the standard 3750 Vrms variants is required. The 16-SOIC package provides wider creepage and clearance distances compared to the 8-SOIC version. Choose this part for applications demanding high CMTI to prevent false triggering in high-dv/dt environments. Ensure the design accommodates the slightly larger footprint and pin count of the 16-pin package.

Digital Isolators Part Context

This device belongs to the Si862x family of digital isolators from Skyworks Solutions. It utilizes proprietary CMOS isolation technology to replace traditional optocouplers. The family offers various channel counts and isolation ratings, with the SI8620 specifically providing dual-channel isolation for bidirectional or unidirectional data transfer across isolation barriers.

Digital Isolators Replacement Considerations

SI8620EC-B-ISR: Offers lower isolation (3750 Vrms) but uses an 8-SOIC package; requires PCB redesign. SI8620BC-B-IS: Similar performance but verify package and isolation specs against datasheet requirements.