SI8282EC-ISR

Isolators - Gate Drivers Overview

The SI8282EC-ISR is a galvanically isolated gate driver from Skyworks Solutions, designed for Silicon Carbide (SiC) and IGBT applications. It integrates a high-performance capacitive coupling digital isolator with an on-chip 2W DC-DC converter, eliminating the need for external isolated power supplies. The device features a single channel with a 5000Vrms isolation voltage and operates within a temperature range of -40°C to 125°C. Key electrical parameters include a peak output current of 4A, a maximum propagation delay of 50ns, and a minimum common-mode transient immunity (CMTI) of 35kV/µs. It is housed in a 20-SOIC package.

Isolators - Gate Drivers Feature Summary

• Integrates a 2W DC-DC converter to provide isolated power, removing the requirement for external isolated supply components.
• Utilizes advanced capacitive coupling technology to achieve high-speed signal transmission with superior noise immunity.
• Engineered specifically for driving wide-bandgap devices such as SiC FETs and standard IGBTs in high-power environments.

Isolators - Gate Drivers Applications

• Silicon Carbide (SiC) field-effect transistor gate driving
• Insulated Gate Bipolar Transistor (IGBT) switching control
• High-frequency DC-DC converters and inverters
• Motor drive systems requiring robust galvanic isolation

Isolators - Gate Drivers Procurement Notes

Verify the specific suffix 'EC' against the manufacturer's latest datasheet to confirm the exact isolation rating and certification status, as suffixes often denote specific regulatory approvals or performance grades. Ensure the 'R' suffix indicating tape-and-reel packaging aligns with your automated assembly requirements. Cross-reference the 20-SOIC footprint dimensions with your PCB layout guidelines to guarantee mechanical compatibility during integration.

Isolators - Gate Drivers Selection Notes

Select this component when designing circuits that require integrated isolated power delivery alongside high-current gate driving capabilities. It is suitable for applications demanding high common-mode transient immunity to prevent false triggering in noisy environments. Consider this part for space-constrained designs where eliminating external isolated power supplies reduces bill-of-materials complexity and board area.

Isolators - Gate Drivers Part Context

The SI8282EC-ISR belongs to the Si828x ISOdriver family, which focuses on providing complete isolation solutions for power electronics. This series distinguishes itself by combining high-voltage isolation with power conversion in a single package. It serves as a modern alternative to traditional optocoupler-based drivers, offering improved reliability, lower power consumption, and higher speed performance for industrial and automotive power conversion systems.

Isolators - Gate Drivers Replacement Considerations

Direct replacements within the same family include the SI8282CC-ISR, which shares similar functional characteristics but may differ in specific isolation certifications or thermal ratings. Verify pinout compatibility and electrical specifications before substitution to ensure system integrity.

Isolators - Gate Drivers FAQ

Does the SI8282EC-ISR require an external isolated power supply?

No, the device includes an integrated 2W DC-DC converter that generates the necessary isolated power for the secondary side, eliminating the need for external isolated supplies.

What is the common-mode transient immunity (CMTI) of this driver?

The SI8282EC-ISR offers a minimum CMTI of 35kV/µs, ensuring reliable operation in high-noise environments typical of power electronics applications.