SI8285ED-ISR

Isolators - Gate Drivers Overview

The SI8285ED-ISR is a single-channel, galvanically isolated gate driver from Skyworks Solutions Inc., designed for SiC and IGBT applications. It utilizes capacitive coupling technology to provide high common-mode transient immunity of 125 kV/µs. The device features a peak output current of 4 A and operates within a supply voltage range of 13.2 V to 30 V. Key timing parameters include a maximum propagation delay of 50 ns, with typical rise and fall times of 5.5 ns and 8.5 ns, respectively. It is housed in a 16-SOIC package and supports an operating temperature range from -40°C to +125°C.

Isolators - Gate Drivers Feature Summary

• Capacitive coupling isolation technology ensures high reliability and immunity to electromagnetic interference.
• High common-mode transient immunity rating of 125 kV/µs protects against noise in harsh environments.
• Automotive-grade qualification (AEC-Q100) supports deployment in demanding automotive power electronics.
• Integrated dual-output configuration allows efficient driving of high-side and low-side switches.

Isolators - Gate Drivers Applications

• Isolated gate driving for Silicon Carbide (SiC) MOSFETs
• Gate driving for Insulated Gate Bipolar Transistors (IGBTs)
• Automotive power conversion systems requiring AEC-Q100 compliance
• Motor drive inverters and traction converters

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'ISR' corresponds to the tape-and-reel packaging format when sourcing components. Confirm that the automotive grade designation aligns with project requirements for AEC-Q100 certification. Ensure the 16-SOIC footprint matches the PCB layout specifications. Cross-reference the manufacturer part number directly with official Skyworks documentation to avoid confusion with non-automotive variants or different package styles.

Isolators - Gate Drivers Selection Notes

Select this component for applications requiring robust isolation between control logic and high-power switching devices. The 4 A peak current capability suits medium-power SiC and IGBT modules. Consider the 50 ns propagation delay for timing-sensitive designs. The wide operating temperature range makes it suitable for under-hood automotive environments. Verify input logic compatibility with CMOS standards before integration into the control circuit.

Isolators - Gate Drivers Part Context

The SI8285ED-ISR belongs to the Si8285 family of isolated gate drivers, which are engineered for high-performance power switching applications. This series leverages Skyworks' proprietary capacitive isolation technology to replace traditional magnetic transformers. The ED variant specifically denotes automotive-grade qualification, ensuring durability and consistency for vehicle electrification systems. It complements other members of the family by offering optimized performance for modern wide-bandgap semiconductors.

Isolators - Gate Drivers Replacement Considerations

Direct replacements within the same family include SI8285CD-AS and SI8285DC-ISR, though these may differ in automotive qualification status or packaging type. Non-family alternatives such as the SI8281 series offer similar isolation but may have different pin configurations or electrical characteristics. Always verify pinout compatibility and thermal performance when substituting components to ensure system integrity.