Power Integrations launches InnoSwitch5 offline flyback switch IC

Power Integrations (NASDAQ: POWI), a pioneering force in high-voltage integrated circuits for energy-efficient power conversion, is proud to announce the launch of the InnoSwitch™ 5-Pro Series – a high-efficiency, programmable flyback switch IC. This breakthrough single-chip toggle switch achieves an impressive over 95% efficiency through an innovative secondary-side control scheme, facilitating zero-voltage switching (ZVS) without the need for additional high-voltage switches, thereby saving costs.

Revolutionizing Power Conversion

The InnoSwitch5-Pro Series introduces a game-changing technology, featuring 750 V or 900 V PowiGaN™ primary-side switches, primary-side controllers, FluxLink™ isolated feedback and secondary-side controllers. Equipped with an I2C interface, these ICs are tailored for the optimization of small, high-efficiency single-port or multi-port designs and the manufacturing of USB PD converters. Target applications include notebook computers, high-end mobile phones, and other portable consumer products, especially those requiring the new USB PD EPR (Extended Power Range) protocol.

Adnaan Lokhandwala, Senior Product Marketing Manager at Power Integrations, expressed the significance of the combination of ZVS and GaN, stating, “The switching losses become zero, and we can leverage the low conduction losses of GaN to achieve ultra-dense converter layouts with far higher component counts than asymmetric half-bridge (AHB) circuits or active clamping alternatives.”

Optimized Design and Efficiency

The InnoSwitch5-Pro flyback switch IC introduces lossless input line voltage sensing on the secondary side, enabling adaptive DCM/CCM and ZVS control for maximum efficiency and simplified line voltage and load design. The IC also features post-production tolerance offset, ensuring better than 2% accurate output constant current (CC) control to support the UFCS protocol. With efficiency exceeding 95%, designers can eliminate the need for heat sinks, diffusers, and epoxy potting materials, reducing size, weight, component costs, and manufacturing complexity.

Key Markets and Availability

The InnoSwitch5-Pro family of flyback switch ICs is poised to make a significant impact in key markets, including high-density USB PD 3.1 Extended Power Range (EPR), UFCS and multi-protocol converters, notebook converters, and single-port and multi-port aftermarket chargers and converters devices.

These cutting-edge units are available starting at $2.40 each in quantities of 10,000 units. For more information, reach out to the Power Integrations sales team or visit power.com for valuable resources and insights. Witness the future of energy-efficient power conversion with InnoSwitch5-Pro Series.

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