SI8285CC-AS

Isolators - Gate Drivers Overview

The Skyworks SI8285CC-AS is an automotive-grade, current-isolated gate driver designed for SiC and IGBT applications. It features a split output configuration with integrated Miller clamp functionality. The device operates within a supply voltage range of 2.8 V to 5.5 V on the logic side and delivers up to 4 A peak output current at 30 V. Key electrical parameters include a maximum propagation delay of 50 ns, rise time of 15 ns, and fall time of 20 ns. It supports both inverting and non-inverting configurations, dissipates 900 mW, and functions reliably between -40°C and +125°C.

Isolators - Gate Drivers Feature Summary

• Integrated Miller clamp circuitry to prevent false turn-on events during high dv/dt switching conditions.
• Split output architecture providing independent control paths for enhanced switching performance.
• Current-output isolation technology ensuring robust galvanic separation and high common-mode transient immunity.

Isolators - Gate Drivers Applications

• Automotive power electronics systems requiring AEC-Q100 qualification
• Silicon Carbide (SiC) transistor gate driving
• Insulated Gate Bipolar Transistor (IGBT) switching control

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'AS' against official Skyworks documentation to confirm package type and tape-and-reel specifications. Ensure the selected variant matches the required inverting or non-inverting logic configuration. Cross-reference the AEC-Q100 certification status directly with the manufacturer's quality reports to validate automotive compliance before integration.

Isolators - Gate Drivers Selection Notes

Select this component when designing circuits that demand high common-mode transient immunity and precise Miller clamp protection for wide-bandgap semiconductors. The split output design is suitable for applications requiring optimized switching speed trade-offs. Confirm that the 4 A peak drive capability aligns with the target gate charge requirements of the connected power devices.

Isolators - Gate Drivers Part Context

The SI8285CC-AS belongs to the Si8285 family of isolated gate drivers from Skyworks Solutions. This series utilizes proprietary current-pulse isolation technology to provide reliable signal transmission across isolation barriers. The CC-AS designation specifically denotes the automotive-grade variant with split outputs and Miller clamp features, distinct from standard industrial versions.

Isolators - Gate Drivers Replacement Considerations

The SI8285CD-AS is a related part within the same family offering similar isolation characteristics but may differ in specific output drive configurations or packaging options. Verify functional equivalence regarding the Miller clamp and split output requirements before substitution.

Isolators - Gate Drivers FAQ

What is the purpose of the Miller clamp feature in this driver?

The Miller clamp actively pulls down the gate of the connected power device to prevent unintended turn-on caused by capacitive coupling during fast switching transitions.

Does the SI8285CC-AS support both inverting and non-inverting logic?

Yes, the datasheet specifies that the device supports both inverting and non-inverting input configurations.