Power Integrations Combines Programmability, High Efficiency and Small Form Factor in New Zero-Voltage-Switching Power-Supply ICs

Rhea-AI Summary

Power Integrations (NASDAQ: POwi) has launched the InnoSwitch4-Pro family of flyback ICs designed for energy-efficient power adapters. These devices achieve over 95% efficiency and can handle up to 220 W, allowing for compact design in USB PD and Universal Fast Charging Specification adapters. The technology uses a PowiGaN gallium-nitride primary switch and minimizes component count and PCB area. This innovation promises improved thermal management, reduced heat sink requirements, and simplified manufacturing for highly efficient power supplies.

Positive

• Achieves over 95% efficiency in power adapters.
• Supports adapter output of up to 220 W.
• Utilizes advanced PowiGaN technology for reduced component count.
• Enables significant size reduction for adapters using MinE-CAP technology.
• Streamlines manufacturing with high integration of components.

Negative

• None.

InnoSwitch4-Pro family of flyback switchers enable over 95 percent efficient, compact, USB PD and Universal Fast Charging Specification adapters up to 220 W

MUNICH--(BUSINESS WIRE)-- Electronica – Power Integrations (NASDAQ: POWI), the leader in high-voltage integrated circuits (ICs) for energy-efficient power conversion, today announced the InnoSwitch™4-Pro family of digitally controllable, off-line CV/CC Zero Voltage Switching (ZVS) flyback ICs, which substantially reduce the size of power adapters. Incorporating a robust PowiGaN gallium-nitride primary switch and steady-state switching frequency of up to 140 kHz, the highly integrated devices reduce the component count and PCB area required for ultra-compact adapters for cellphone, notebook, tablet and multi-port accessories.

Power Integrations’ InnoSwitch4-Pro family of flyback switchers enable over 95% efficient, compact, USB PD and Universal Fast Charging Specification (UFCS) adapters up to 220 W (Photo: Business Wire)

“InnoSwitch4-Pro ICs interface seamlessly with Power Integrations’ ClampZero™ family of active clamp ICs to achieve ZVS in both continuous conduction mode (CCM) and discontinuous conduction mode (DCM),” stated Aditya Kulkarni, product marketing manager at Power Integrations. “ZVS, combined with our PowiGaN™ technology, virtually eliminates switching losses. Efficiency exceeds 95 percent, which enables designers to eliminate the heat sinks, spreaders and potting materials typically required for thermal management."

Further size reduction of the adapter can be achieved by the use of a MinE-CAP™ device in combination with InnoSwitch4-Pro and ClampZero ICs. Based also on PowiGaN technology, MinE-CAP ICs enable input capacitance size reduction of approximately 40 percent.

Capable of delivering up to 220 W, InnoSwitch4-Pro ICs combine a 750 V PowiGaN primary switch, controller, FluxLink™ reinforced isolation feedback link for secondary-side control, I²C interface, active clamp drive and synchronous rectification in a compact InSOP™-28 package. The high level of integration greatly simplifies the development and manufacturing of fully programmable, highly efficient power supplies. These programmable flyback ICs in combination with ClampZero and MinE-CAP companion devices enable the ultra-compact and slim form factors highly desired by both OEM accessory and aftermarket USB PD and Universal Fast Charging Specification (UFCS) adapters. UFCS is the new standard released by the China Communications Standards Association.

A unique control algorithm is employed by the InnoSwitch4-Pro ICs to enable ZVS in both DCM and CCM. When paired with the ClampZero IC, the algorithm allows for higher-frequency operation without a corresponding drop in efficiency. InnoSwitch4-Pro also supports quasi-resonant switching in DCM and CCM when used as a standalone product. DCM-only operation can be selected to reduce SR FET voltage stress. The new ICs also feature an optimized command set to reduce I²C traffic.

InnoSwitch4-Pro flyback switcher ICs provide exceptional CV/CC accuracy, independent of external components, and consume less than 30 mW no-load while offering line-sensing and comprehensive protection features. Devices are fully protected featuring auto-restart or latching fault response for output overvoltage and undervoltage protection, multiple output undervoltage fault thresholds, latching or hysteretic primary over-temperature protection, and output bus switch short-circuit protection.

Availability & Resources
Two reference designs, DER-960 (100 W), RDK-942 (65 W), are available for designers wishing to evaluate the InnoSwitch4-Pro IC. Devices are priced at $1.85 for 10,000-unit quantities. For further information contact a Power Integrations sales representative or one of the company’s authorized worldwide distributors: Digi-Key, Farnell, Mouser and RS Components, or visit power.com. For more information, watch this video.

About Power Integrations
Power Integrations, Inc. is a leading innovator in semiconductor technologies for high-voltage power conversion. The company’s products are key building blocks in the clean-power ecosystem, enabling the generation of renewable energy as well as the efficient transmission and consumption of power in applications ranging from milliwatts to megawatts. For more information, please visit www.power.com.

Power Integrations, InnoSwitch, ClampZero, PowiGaN, MinE-CAP, FluxLink, InSOP and the Power Integrations logo are trademarks or registered trademarks of Power Integrations, Inc. All other trademarks are the property of their respective owner.

View source version on businesswire.com: https://www.businesswire.com/news/home/20221115005574/en/

Media Contact

Linda Williams

Power Integrations

(408) 414-9837

linda.williams@power.com



Press Agency Contact

Nick Foot

BWW Communications

+44-1491-636-393

nick.foot@bwwcomms.com

Source: Power Integrations, Inc.

FAQ

What is the InnoSwitch4-Pro family launched by Power Integrations?

The InnoSwitch4-Pro family is a series of digitally controllable flyback ICs that enable efficient power conversion and compact size for USB PD and Universal Fast Charging Specification adapters.

What is the efficiency of the InnoSwitch4-Pro flyback switchers?

The InnoSwitch4-Pro flyback switchers achieve over 95% efficiency in power adapters.

What is the maximum output power of the InnoSwitch4-Pro ICs?

The InnoSwitch4-Pro ICs can deliver up to 220 W.

How does PowiGaN technology impact the InnoSwitch4-Pro devices?

PowiGaN technology reduces the component count and PCB area, leading to smaller and more efficient power adapters.

What design features enable the InnoSwitch4-Pro to be compact?

It incorporates a robust gallium-nitride switch, combines multiple functions in a single package, and utilizes MinE-CAP technology for size reduction.