SI8271DBD-AS

Isolators - Gate Drivers Overview

The SI8271DBD-AS is a single-channel galvanically isolated gate driver from Skyworks Solutions, designed for automotive applications with high common-mode transient immunity. It features a 2.5 kVrms isolation voltage and operates within a temperature range of -40°C to +125°C. The device utilizes capacitive coupling technology and includes a deglitch filter for signal integrity. Key electrical parameters include a maximum propagation delay of 75 ns, rise time of 16 ns, and fall time of 18 ns. It supports a supply power current of 10 mA and provides an output current of 4 mA. The input voltage range is specified between 2.5 V and 5.5 V, with a typical output voltage of 12 V.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling technology enables high-speed signal transmission with low latency and skew.
• Integrated deglitch filter enhances noise immunity and signal stability in harsh environments.
• Automotive-grade design ensures reliability under extreme operating temperatures.

Isolators - Gate Drivers Applications

• Automotive power electronics
• Motor control systems
• Switched-mode power supplies

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AS' against the official Skyworks datasheet to confirm it denotes the standard automotive grade variant without additional custom packaging or testing requirements. Ensure the SOIC-8 package matches your PCB footprint constraints. Confirm RoHS compliance status directly with the manufacturer documentation prior to final procurement decisions.

Isolators - Gate Drivers Selection Notes

Select this component when a single-channel isolated driver with high CMTI is required for automotive circuits. The 12 V UVLO setting suits specific gate drive thresholds. Consider the 75 ns max delay for switching frequency limitations. The SOIC-8 package offers a compact solution for space-constrained designs requiring galvanic isolation.

Isolators - Gate Drivers Part Context

Part of the Si8271 family of isolated gate drivers. This series leverages Skyworks' proprietary silicon isolation technology. The SI8271DBD-AS represents the single-driver configuration optimized for automotive reliability. It complements dual-channel variants within the same product line for different topology requirements.

Isolators - Gate Drivers Replacement Considerations

SI8271GBD-AS: Similar single-channel driver but with 3 V UVLO instead of 12 V. Verify threshold compatibility before substitution.

Isolators - Gate Drivers FAQ

What is the maximum common-mode transient immunity (CMTI) of the SI8271DBD-AS?

The device features high CMTI, specifically rated at 200 kV/μs.

Does the SI8271DBD-AS include a deglitch filter?

Yes, the datasheet specifies that this model includes a deglitch filter to improve noise immunity.