SI8273DB-IS1R

Isolators - Gate Drivers Overview

The SI8273DB-IS1R is a galvanically isolated gate driver from Skyworks Solutions, utilizing RF coupling technology for high-speed signal transmission. It features a single channel configuration housed in a 16-SOIC package. Key electrical parameters include an isolation voltage of 2.5 kVrms and a maximum propagation delay of 75 ns. The device supports a supply voltage up to 12 V with a typical operating current of 10 mA. It offers rise and fall times of 16 ns and 18 ns respectively, ensuring low latency performance suitable for demanding power electronics applications.

Isolators - Gate Drivers Feature Summary

• High common-mode transient immunity (CMTI) for robust noise rejection
• Integrated UVLO (Under-Voltage Lockout) for reliable operation
• Capacitive isolation barrier providing galvanic isolation

Isolators - Gate Drivers Applications

• Industrial motor drives
• Inverter systems
• Power supply control circuits

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'IS1R' corresponds to the reel packaging variant when sourcing. Confirm that the 16-SOIC footprint matches the target PCB layout. Ensure compatibility with the required logic input levels and output drive strength for the intended load. Cross-reference the datasheet revision date to ensure all latest electrical characteristics are considered during design validation.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring high CMTI and precise timing control in isolated environments. The single-channel design simplifies board space compared to dual-channel alternatives. Consider the 12 V UVLO threshold to ensure proper startup behavior under varying supply conditions. Evaluate thermal dissipation requirements given the 1.2 W power dissipation rating in the SOIC-16 package.

Isolators - Gate Drivers Part Context

This part belongs to the Si8273 series of isolated gate drivers. It complements other variants like the SI8273AB-IM3 by offering specific packaging and pinout configurations. The series is designed to replace traditional optocouplers, offering superior speed and reliability through silicon-based isolation technology.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes may include other Skyworks Si827x variants with matching pinouts. Verify functional equivalence regarding UVLO thresholds and propagation delays before swapping. Ensure any replacement maintains the 2.5 kVrms isolation rating and AEC-Q100 qualification if automotive compliance is required.