SI8274DB1-AS1R

Isolators - Gate Drivers Overview

The SI8274DB1-AS1R is a dual-channel digital isolator gate driver from Skyworks Solutions, utilizing RF coupling technology for galvanic isolation. It features a 2500Vrms insulation voltage and operates within a temperature range of -40°C to +125°C. The device provides high common-mode transient immunity (CMTI) and supports PWM input signals with UVLO functionality. Key electrical parameters include a maximum propagation delay of 105 ns, rise time of 16 ns, and fall time of 18 ns. It delivers an output current of 4 mA and dissipates up to 1.2 W of power. Packaged in a 16-SOIC format on a reel, it is designed for automotive applications requiring high speed and low latency.

Isolators - Gate Drivers Feature Summary

• Dual-channel configuration with high common-mode transient immunity
• RF coupling technology for reliable galvanic isolation
• Automotive-grade reliability with wide operating temperature range

Isolators - Gate Drivers Applications

• Automotive motor control systems
• High-speed isolated gate driving
• PWM input signal processing

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1R against official Skyworks documentation to confirm reel packaging and exact electrical tolerances. Ensure compatibility with 16-SOIC footprint requirements. Cross-reference datasheet revisions to validate CMTI ratings and UVLO thresholds for your specific circuit design before finalizing procurement.

Isolators - Gate Drivers Selection Notes

Select this component when dual-channel isolation with 4A peak drive capability is required in an automotive environment. Consider the 105 ns propagation delay and 16/18 ns transition times for switching frequency constraints. Verify that the 2500Vrms isolation barrier meets system safety standards and that the SOIC-16 package fits the PCB layout constraints.

Isolators - Gate Drivers Part Context

This part belongs to the Si8274 series of isolated gate drivers. It complements single-channel variants like the SI8273 by providing two independent isolation channels. The series emphasizes low latency and skew, making it suitable for bridge topologies where precise timing between high-side and low-side drivers is critical for efficiency and safety.

Isolators - Gate Drivers Replacement Considerations

SI8274AB1-AS1R: Single channel variant with similar electrical characteristics but different channel count.