Power Electronics / Power Management


Power module gate driver and isolation board

26 May 2021 Power Electronics / Power Management

The new Si823Hx gate driver board from Silicon Labs is an all-in-one isolation solution perfectly suited for the recently launched Wolfspeed WolfPACK power module. Wolfspeed power modules are used across numerous power applications, including electric vehicle (EV) chargers and motor drives in the industrial and automotive markets. Featuring the Si823Hx isolated gate driver and Si88xx digital isolator with integrated DC-DC converter, the board delivers excellent performance in a compact and cost-effective design, optimised for a wide range of modules.

Silicon Labs’ isolated gate driver technology is leveraged for a variety of power applications including high-power converters and inverters, motor and traction drives and EV chargers. The Si823Hx gate driver board delivers the performance to efficiently drive and protect power modules employing any switch technology, including advanced silicon carbide (SiC)-based modules used in the most demanding high-power applications.

The two-channel Si823Hx isolated gate driver delivers built-in dead-time control and overlap protection in a small package, enabling it to drive a half-bridge topology safely and with minimal design effort. The highly integrated Si88xx device not only communicates power module temperature to the controller, but also generates all the power supplies for the board, further reducing costs and simplifying the design.

A complete suite of design resources, developed in partnership with Wolfspeed, is available to jumpstart Wolfspeed WolfPACK evaluation and development, including a reference design, evaluation test fixture and system test report.


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