ST’s VIPerGaN50W homes a 700-V GaN energy transistor, flyback controller, and gate driver in a compact 5×6-mm QFN package deal. The quasi-resonant offline converter delivers as much as 75 W from high-line enter (185–265 VAC) or 50 W throughout the complete common enter vary (85–265 VAC). It makes use of a proprietary method that ensures chargers and energy provides function silently in any respect load ranges.
Together with zero voltage switching (ZVS), the VIPerGaN50W consists of dynamic blanking time, which minimizes switching losses by limiting the frequency. It additionally provides adjustable valley synchronization delay to maximise effectivity at any enter line and cargo situation. A valley-lock characteristic stabilizes skipped cycles to stop audible switching noise.
At no load, the converter’s standby energy drops beneath 30 mW because of adaptive burst mode, serving to meet stringent ecodesign laws. Superior power-management options make sure the output-power functionality and switching frequency stay secure, even when the provision voltage modifications.
In manufacturing now, the VIPerGaN50W is priced from $1.09 every in a lot of 1000 items.
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