SI8275DBD-AS1

Isolators - Gate Drivers Overview

The SI8275DBD-AS1 is a dual-channel, galvanically isolated gate driver from the Si827x series by Skyworks Solutions. It utilizes radio frequency coupling technology to provide 2500Vrms isolation voltage and high common-mode transient immunity (CMTI). The device features a SOIC-16 surface-mount package and supports an input voltage range of 2.5 V to 5.5 V. It delivers peak output currents of up to 4 A with a maximum propagation delay of 75 ns. Operating temperatures range from -40°C to +125°C, and it includes undervoltage lockout (UVLO) for automotive reliability.

Isolators - Gate Drivers Feature Summary

• High-speed RF coupling provides low latency and skew for precise gate control
• Automotive-grade design ensures high CMTI and robust operation in noisy environments
• Integrated UVLO protects connected power devices from insufficient drive voltages

Isolators - Gate Drivers Applications

• Automotive power electronics and motor drives
• Industrial inverters and converters
• High-voltage DC/DC converter interfaces

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix AS1 against the official Skyworks datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the SOIC-16 package dimensions align with your PCB footprint. Confirm that the 2500Vrms isolation rating meets the safety standards required for your application's creepage and clearance distances.

Isolators - Gate Drivers Selection Notes

Select this component when high-speed switching with minimal signal distortion is critical. The dual-channel configuration allows for independent control of high-side and low-side switches. Consider the 4A peak current capability for driving medium-power MOSFETs or IGBTs. Verify that the 12 V output voltage specification suits the target gate drive requirements.

Isolators - Gate Drivers Part Context

This part belongs to the Si827x family of isolated gate drivers, which are designed for demanding applications requiring reliable signal transmission across isolation barriers. The SI8275 variant specifically offers dual channels with optimized timing characteristics. The AS1 suffix typically denotes specific packaging or automotive qualification variants within the Skyworks portfolio.

Isolators - Gate Drivers Replacement Considerations

Direct substitutes may include other parts from the Si827x family with compatible pinouts and electrical specs. Cross-reference with Skyworks' official replacement guide to ensure functional equivalence regarding isolation voltage and CMTI ratings.