SI86SM40BC-IS1R

Digital Isolators Overview

The SI86SM40BC-IS1R is a digital isolator from Skyworks Solutions featuring four unidirectional channels. It utilizes capacitive coupling technology to provide an isolation voltage of 3750 Vrms. The device supports data rates up to 150 Mbps and offers a common-mode transient immunity (CMTI) of 100 kV/µs. It operates within a supply voltage range of 2.25 V to 5.5 V on both sides. The component is housed in a 16-lead SOIC package with a width of 0.154 inches (3.90 mm).

Digital Isolators Feature Summary

• Integrates four independent unidirectional signal paths for efficient channel management.
• Employs silicon dioxide-based capacitive coupling for robust signal transmission across isolation barriers.
• Features a dedicated sleep mode function designed to minimize power consumption during inactive periods.

Digital Isolators Applications

• Industrial automation systems requiring galvanic isolation between control logic and field devices.
• Power monitoring circuits where high-voltage side signals must be safely transferred to low-voltage processors.
• Inverter gate drive interfaces protecting sensitive microcontrollers from high-voltage transients.

Digital Isolators Procurement Notes

Verify the specific suffix 'IS1R' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the BC variant meets the necessary temperature and performance specifications for the intended operational environment. Ensure compatibility with standard SOIC-NB-16 footprints during PCB layout validation.

Digital Isolators Selection Notes

Select this component when four unidirectional channels are required alongside a 3750 Vrms isolation rating. Consider the 150 Mbps data rate capability for moderate-speed communication links. Evaluate the sleep mode feature as a critical factor for applications prioritizing energy efficiency over continuous active operation states.

Digital Isolators Part Context

This part belongs to the Si86SM4x series, which focuses on low-power isolated solutions. It complements other Skyworks isolators by offering a balance between high isolation voltage and reduced standby power consumption. The series targets applications demanding reliable signal integrity in electrically noisy environments.

Digital Isolators Replacement Considerations

Direct substitutes within the same family include the SI86SM42BC-IS1R, which shares identical pinout and functional characteristics. Verify that any replacement maintains the 16-SOIC package dimensions and the specific IS1R reel configuration to ensure mechanical and supply chain compatibility.