STMicroelectronics’ new chip boosts vitality effectivity in client electronics, with potential to avoid wasting nearly 100 terawatt-hours worldwide

STMicroelectronics NV

P4461D – Jun 20 2022 – ST-ONE energy controller_IMAGE

ST-ONE power controller

ST-ONE energy controller

STMicroelectronics’ new chip boosts vitality effectivity
in client electronics, with potential to avoid wasting nearly 100 terawatt-hours worldwide

ST-ONE power-supply controller combines with ST’s MasterGaN expertise in a record-breaking laptop computer / smartphone charger design with vitality restoration

Geneva, June 202022 STMicroelectronics (NYSE: STM), a world semiconductor chief serving clients throughout the spectrum of electronics functions, is enhancing the sustainability of non-public computing with its newest innovation. The brand new chip, known as ST-ONE, units to extend vitality effectivity in all kinds of ac-dc adapters, absolutely compliant with USB-PD 3.1, together with laptop computer and smartphone chargers. New adapters constructed with ST-ONE can cut back each CO2 emissions and the amount of plastics consumed.

The brand new ST-ONE chip pairs with ST’s MasterGaN energy output modules primarily based on superior gallium-nitride (GaN) semiconductor expertise. The GaN chips allow vital vitality financial savings and smaller gear dimensions.

Though laptops present non-compulsory power-saving settings, each machine can save much more vitality if outfitted with a extra environment friendly energy adapter. This improves the environmental profile and CO2 footprint. The ST-ONE chip is optimized for controlling energy provides that recuperate vitality usually dissipated as warmth from typical circuits. It additionally simplifies circuit design with a big discount within the variety of elements, enabling such a energy provide to develop into extra strong, inexpensive and extra extensively adopted all through the market.

If each energy adapter achieved a minimum of 1% greater effectivity, which is feasible utilizing the ST-ONE energy-recovery circuit design, the world may save about 93 terawatt-hours of vitality, equal to the output of 15 nuclear vegetation, ”Commented Domenico Arrigo, Industrial and Energy Conversion Division Normal Supervisor, STMicroelectronics. “As well as, if one billion chargers worldwide have been to make use of our expertise, 0.2 million tons of plastics and uncooked supplies might be saved. ”

The discount in consumption of supplies similar to plastics is achieved with the rise in so-called energy density that allows smaller elements to handle a bigger energy supply. A excessive energy density additionally cuts down recycling and environmental prices.

On show on the Embedded World exhibition in Nuremberg, Germany, ST’s reference design, EVLONE65W, permits a 65-Watt USB-C adapter of the identical measurement and weight (lower than 70g in a 37cm3) of a normal 20-Watt smartphone charger to deal with the calls for of charging a laptop computer. This unit achieves the world’s highest energy density, packing greater than 1.8 watts of energy per cubic centimeter.

Additional technical info

ST-ONE is optimized for designs primarily based on a novel non-complementary active-clamp flyback topology, which permits excessive energy, above 65W, with greater effectivity than different topologies such because the quasi-resonant flyback.

It’s the world’s first digital controller to combine a programmable offline power-supply controller primarily based on Arm® Cortex®-M0 + core, a excessive voltage start-up circuit, a synchronous-rectification controller, and USB Energy Supply (USB-PD) circuitry in a single bundle.

The ST-ONE incorporates all of the peripherals required to manage the conversion. USB-PD communication is carried out on the secondary aspect and bolstered galvanic insulation is offered to let the first and the secondary aspect circuits talk whereas respecting security necessities.

Additionally utilizing the MasterGaN built-in energy stage with superior wide-bandgap transistors and optimized drivers, adapters function at elevated switching frequencies and thus enable smaller-size magnetic elements to maximise energy density.

The ST-ONE comes with 64kByte of embedded flash for designers to customise each the USB-PD protocol and the power-conversion stage.

The ST-ONE controller comes with USB-PD 3.1 PPS licensed firmware pre-loaded into the flash reminiscence, presenting customers with a turnkey answer for designing customary functions.

ST-ONE is in manufacturing and accessible now, in a SSOP36 bundle, from $ 3.70 for orders of 1000 items.

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About STMicroelectronics

At ST, we’re 48,000 creators and makers of semiconductor applied sciences mastering the semiconductor provide chain with state-of-the-art manufacturing amenities. An built-in machine producer, we work with greater than 200,000 clients and 1000’s of companions to design and construct merchandise, options, and ecosystems that handle their challenges and alternatives, and the necessity to assist a extra sustainable world. Our applied sciences allow smarter mobility, extra environment friendly energy and vitality administration, and the wide-scale deployment of the Web of Issues and connectivity. ST is dedicated to changing into carbon impartial by 2027. Additional info might be discovered at

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