SI8285CC-ASR

Isolators - Gate Drivers Overview

The SI8285CC-ASR is an automotive-grade, current-isolated gate driver from the Si8285 series, manufactured by Skyworks Solutions Inc. It features a split output configuration with integrated Miller clamp functionality, designed for driving Silicon Carbide (SiC) and IGBT power devices. The component utilizes capacitive coupling technology to provide galvanic isolation. It operates within a supply voltage range of 2.8 V to 5.5 V on the logic side and supports output voltages up to 30 V. Key electrical parameters include a maximum propagation delay of 50 ns, rise time of 15 ns, and fall time of 20 ns. The device delivers a peak output current of 4 A and has a typical Rds(on) of 2.48 Ohms. It is housed in a 16-SOIC package and is qualified to AEC-Q100 standards for operation between -40°C and +125°C.

Isolators - Gate Drivers Feature Summary

• Integrated Miller clamp circuitry to suppress false turn-on events caused by high dv/dt transients
• Split output architecture providing independent control over pull-up and pull-down drive strengths
• High common-mode transient immunity suitable for noisy switching environments

Isolators - Gate Drivers Applications

• Gate driving for Silicon Carbide (SiC) MOSFETs in electric vehicle inverters
• Isolated control of Insulated Gate Bipolar Transistors (IGBTs)
• Automotive power conversion systems requiring AEC-Q100 compliance

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ASR' corresponds to the reel packaging variant rather than the tube variant ('AS'). Confirm that the split-output Miller clamp feature is required for the target application, as this distinguishes it from standard single-output drivers. Ensure the design accounts for the 16-SOIC thermal dissipation limits under continuous operation.

Isolators - Gate Drivers Selection Notes

Select this part when high-speed switching of wide-bandgap devices like SiC is required alongside robust noise immunity. The split output allows optimization of turn-on and turn-off speeds independently. Compare against non-split variants if Miller clamp is not needed. Verify that the 4 A peak current capability meets the gate charge requirements of the target power switch at the intended switching frequency.

Isolators - Gate Drivers Part Context

This component belongs to the Si8285 family of isolated gate drivers. Unlike the SI8285CD-AS which offers higher isolation voltage ratings, the SI8285CC-AS focuses on automotive reliability with specific Miller clamp integration. The 'ASR' designation indicates tape-and-reel packaging, facilitating automated surface-mount assembly processes compared to the tube-packaged 'AS' version.

Isolators - Gate Drivers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.