Si828x Family: SiC FET-Ready ISODrivers with Integrated DC-DC Converters

The Si828x family (Si8281/82/83/84) offers isolated, high-current gate drivers with integrated system safety and feedback functions, ideal for driving Silicon Carbide (SiC) FETs, power MOSFETs, and IGBTs in inverter and motor control applications. Leveraging Skyworks' proprietary silicon isolation technology, these devices achieve up to 5.0 kVrms withstand voltage (UL1577), providing enhanced performance, stability over temperature and age, tighter part-to-part matching, and superior common-mode rejection. The integrated DC-DC controller simplifies the implementation of an isolated supply for the driver side, with configurations available for different system voltage rails and power needs. The Si8281/83 feature integrated power switches with limited DC-DC voltage input, while the Si8282/84 utilize external power switches for higher voltage input capabilities. Features include user-adjustable frequency, soft-start, and shutdown. The devices require minimal passive components and a miniature transformer, with complementary digital inputs and digital control/feedback signals on the isolation side. Output includes separate pull-up and pull-down pins, a dedicated DSAT pin for desaturation detection and controlled shutdown, and an integrated Miller clamp for strong turn-off. Automotive Grade options are available, built with automotive-specific manufacturing flows and AEC-Q100 qualification.

Product Attributes

• Brand: Skyworks Solutions, Inc.
• Certifications: UL 1577 recognized (5000 VRMS), CSA approval (IEC 62368-1), VDE approval (EN 62368-1), CQC certification (GB4943.1-2011), AEC-Q100 Qualified (Automotive Grade)
• Material: Proprietary silicon isolation technology
• Origin: Not specified in text
• Color: Not specified in text

Technical Specifications