SI8273BB-AS1

Isolators - Gate Drivers Overview

The SI8273BB-AS1 is a galvanically isolated gate driver from the Si8273 series, manufactured by Skyworks Solutions. It features a single channel with high-side and low-side configuration in an SOIC-16 package. Key electrical parameters include a maximum propagation delay of 75 ns, rise time of 16 ns, and fall time of 18 ns. The device supports an insulation voltage of 2.5 kVrms and operates within a temperature range of -40°C to +125°C. It delivers 4 mA output current at 12 V, with a power dissipation of 1.2 W and drain-source resistance of 2.7 Ohms.

Isolators - Gate Drivers Feature Summary

• High Common-Mode Transient Immunity (CMTI) for robust signal integrity
• Automotive-grade qualification ensuring reliability in harsh environments
• Low latency and skew characteristics for precise timing control

Isolators - Gate Drivers Applications

• Automotive power electronics systems
• Motor drive applications requiring isolated switching
• Industrial inverters and converters

Isolators - Gate Drivers Procurement Notes

Verify that the specific suffix AS1 corresponds to the required tape-and-reel or tube packaging format as defined in the official datasheet. Confirm AEC-Q100 automotive qualification status if the application mandates strict automotive standards. Ensure the SOIC-16 footprint matches the target PCB design constraints before finalizing procurement orders.

Isolators - Gate Drivers Selection Notes

Select this component when high CMTI is critical to prevent false triggering in noisy power stages. The dual high-side/low-side configuration simplifies bridge driver designs compared to single-channel alternatives. Consider the 75 ns propagation delay limit against system switching frequency requirements to ensure adequate dead-time management.

Isolators - Gate Drivers Part Context

This part belongs to the Si8273 family of galvanically isolated gate drivers. It utilizes capacitive coupling technology for isolation, offering higher speed and lower power consumption than traditional optocouplers. The series provides various configurations including single, dual, and HS/LS drivers to support diverse topology needs.

Isolators - Gate Drivers Replacement Considerations

SI8273DB-AS1: Similar HS/LS driver but may differ in specific pinout or packaging details; verify datasheet compatibility. SI8273AB-AS1: Alternative variant within the same series; confirm functional equivalence regarding UVLO thresholds and output current capabilities.