SI8274BB4D-AS1

Isolators - Gate Drivers Overview

The SI8274BB4D-AS1 is a single-channel, automotive-grade, galvanically isolated gate driver from Skyworks Solutions. It features high common-mode transient immunity (CMTI) and operates with an isolation voltage of 2.5 kVrms. The device supports PWM input signals with integrated deglitching functionality. Key electrical parameters include a maximum propagation delay of 105 ns, rise time of 16 ns, and fall time of 18 ns. It accepts input voltages between 2.5 V and 5.5 V, delivers an output current of 4 mA, and functions within a temperature range of -40°C to +125°C. The component is housed in a 16-pin SOIC package.

Isolators - Gate Drivers Feature Summary

• Automotive qualification compliant with AEC-Q100 standards for reliability in vehicle applications.
• Integrated deglitching circuitry ensures signal integrity by filtering out noise pulses on the PWM input.
• High common-mode transient immunity provides robust performance in electrically noisy environments.

Isolators - Gate Drivers Applications

• Gate driving for power switches in automotive inverters and converters
• Isolated control interfaces in electric vehicle (EV) powertrains
• Motor drive systems requiring high-speed switching with noise immunity

Isolators - Gate Drivers Procurement Notes

Verify that the specific suffix 'AS1' corresponds to the Automotive grade variant with the required packaging configuration. Confirm that the 16-SOIC package matches your PCB footprint requirements. Ensure the design accounts for the specified operating temperature range of -40°C to +125°C. Cross-reference the datasheet for any updates regarding the AEC-Q100 certification status before finalizing the bill of materials.

Isolators - Gate Drivers Selection Notes

Select this component when an automotive-rated isolated gate driver with high CMTI is required. The 4 mA output current is suitable for driving smaller MOSFETs or IGBTs directly. Consider the 105 ns propagation delay for timing-sensitive applications. The integrated deglitching feature reduces the need for external filtering components, simplifying the design compared to non-deglitched alternatives.

Isolators - Gate Drivers Part Context

This part belongs to the Si8274 family of isolated gate drivers designed for industrial and automotive markets. It utilizes silicon dioxide (SiO2) isolation technology to provide galvanic isolation between the input and output sides. The family offers various configurations, but this specific model is tailored for automotive applications with enhanced noise immunity and reliability standards.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative isolated gate drivers, as pinouts and electrical characteristics may differ significantly across manufacturers.