SI88240BC-ISR

Digital Isolators Overview

The SI88240BC-ISR is a Skyworks Solutions digital isolator featuring four unidirectional channels with capacitive coupling technology. It provides 5000Vrms isolation voltage and supports data rates up to 100 Mbps. The device operates on a supply voltage range of 3 V to 5.5 V, with a maximum propagation delay of 18 ns. It is housed in a 20-SOIC package and functions within a temperature range of -40°C to +125°C.

Digital Isolators Feature Summary

• Integrates four high-speed unidirectional digital isolator channels within a single compact package.
• Incorporates an integrated 2W DC-DC converter for isolated power generation.
• Utilizes CMOS-based capacitive coupling technology for enhanced reliability and low power consumption.

Digital Isolators Applications

• Industrial automation systems
• Motor drive circuits
• Power inverter applications

Digital Isolators Procurement Notes

Verify the specific suffix 'ISR' confirms the reel packaging format when sourcing components. Confirm that the BC variant corresponds to the required 5000Vrms isolation rating. Ensure compatibility with the 20-SOIC footprint during PCB layout validation. Cross-reference the manufacturer datasheet for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement orders.

Digital Isolators Selection Notes

Select this component for designs requiring high channel density and integrated isolated power. The 100 Mbps speed suits general-purpose digital communication needs. Consider the 20-SOIC package size for space-constrained industrial boards. Verify input/output logic levels match the system interface requirements. Evaluate thermal performance under continuous operation at maximum ambient temperatures.

Digital Isolators Part Context

This part belongs to the Si88xx ISOvolt series, designed to replace optocouplers in industrial applications. It combines digital isolation with a DC-DC converter to reduce system complexity. The series targets inverters and motor drives where reliability and size reduction are critical. It offers higher CMTI compared to traditional optical solutions.

Digital Isolators Replacement Considerations

Check for direct substitutes within the same Skyworks family, such as the SI88240BD-IS if higher isolation ratings are needed. Verify pin-to-pin compatibility with existing designs when considering alternative manufacturers. Review datasheet updates for any functional changes in newer revisions.