Skyworks Released Si829x Gate Driver for Sampling
The new gate driver, which supports SiC FETs and IGBTs, moves into pre-production to improve power efficiency.
Updated on Oct. 14, 2026 in Semiconductors
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Skyworks Solutions has officially released its Si829x gate driver for customer evaluation. The component has completed AEC-Q100 automotive qualification and is now available in pre-production.
Why it matters
The gate driver integrates advanced drive technology to address power efficiency requirements in automotive and industrial power systems. Its development reflects a industry-wide shift toward optimized switching performance in power electronics.
In internal testing, the Si829x gate driver achieved a 44% reduction in switching losses compared to conventional voltage-mode gate drive architectures. These figures demonstrate the performance gains possible through the newly implemented variable current drive method.
The players
Skyworks Solutions
A designer and manufacturer of high-performance analog semiconductors for mobile and automotive infrastructure.
The details
The Si829x utilizes ProVCD, or proprietary variable current drive, to manage the power gate. Unlike traditional voltage-mode gate drives that apply a constant voltage, this method modulates current to optimize the transition state of SiC FETs — silicon carbide field-effect transistors used for high-efficiency power switching — and IGBTs, which are insulated-gate bipolar transistors capable of handling high voltages. By adjusting drive current, the device minimizes parasitic energy dissipation during the switching cycle.
Timeline
June 2026: Skyworks unveiled the Si829x gate driver.
October 14, 2026: Samples became available for customer evaluation.
The Tech Race
The Si829x release follows the standard industry validation path set by the AEC-Q100 automotive qualification, which serves as a prerequisite for power electronics adoption in vehicle systems. This launch places Skyworks in direct competition with firms refining gate-drive efficiency for wide-bandgap power semiconductors.
Engineers and product designers can now access the Si829x for integration testing in automotive and industrial power applications. Technical documentation for the device is currently restricted to customers under a non-disclosure agreement.
The takeaway
The Si829x marks an attempt to reduce switching losses in high-power applications through current-based drive methods rather than traditional voltage-mode designs. Interested parties should monitor subsequent announcements regarding volume production timelines and broad market availability.
Further reading
Learn more about the latest innovations in Semiconductors.
Source note: This article includes information reported by CHARGED Electric Vehicles Magazine.
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