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GaN switcher IC delivers up to 85 W without heatsink

November 9, 2023 By Redding Traiger

Power Integrations has released the world’s highest-voltage, single-switch gallium-nitride (GaN) power supply IC, featuring a 1250-volt PowiGaN switch. The new device significantly reduces switching losses to less than a third compared to equivalent silicon devices, achieving power conversion efficiency as high as 93% and delivering up to 85 W without the need for a heatsink.

Power Integrations continues to advance the state of the art in high-voltage GaN technology development and commercial deployment. PI’s ongoing development of higher-voltage GaN technology, as illustrated with this new 1250 V device, extends the efficiency benefits of GaN to an even wider range of applications, including many currently served by silicon-carbide technology. The PowiGaN-based InnoSwitch3-EP product offerings now include 750 V, 900 V, and 1250 V varieties.

The 1250 V-rated InnoSwitch3-EP ICs enable designers to confidently specify an operating peak voltage of 1000 V, providing significant headroom for industrial applications and offering a robust defense against grid instability, surge, and other power perturbations in challenging power grid environments.

All InnoSwitch3-EP devices feature synchronous rectification control, a valley-switching discontinuous conduction mode (DCM), and a continuous conduction mode (CCM) flyback controller. FluxLink communication technology enables the IC package to bridge the isolation barrier, eliminating the need for optocouplers.

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Filed Under: Development Tools, Industrial, Power Components, Switches Tagged With: powerintegrationsinc

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