STMicroelectronics’ new chip boosts power effectivity in shopper electronics, with potential to save lots of nearly 100 terawatt-hours worldwide

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P4461D – Jun 20 2022 – ST-ONE energy controller_IMAGE

ST-ONE power controller

ST-ONE energy controller

STMicroelectronics’ new chip boosts power effectivity
in shopper electronics, with potential to save lots of nearly 100 terawatt-hours worldwide

ST-ONE power-supply controller combines with ST’s MasterGaN know-how in a record-breaking laptop computer / smartphone charger design with power 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 power 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 based mostly on superior gallium-nitride (GaN) semiconductor know-how. The GaN chips allow important power financial savings and smaller tools dimensions.

Though laptops present non-obligatory power-saving settings, each machine can save much more power if geared up 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 get better power usually dissipated as warmth from standard circuits. It additionally simplifies circuit design with a big discount within the variety of parts, enabling the sort of energy provide to change into extra strong, reasonably priced and extra extensively adopted all through the market.

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

The discount in consumption of supplies corresponding to plastics is achieved with the rise in so-called energy density that permits smaller parts 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 dimension 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 based mostly on a novel non-complementary active-clamp flyback topology, which permits excessive energy, above 65W, with larger 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 based mostly 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 comprises all of the peripherals required to manage the conversion. USB-PD communication is applied on the secondary aspect and strengthened 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 permit smaller-size magnetic parts 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 normal functions.

ST-ONE is in manufacturing and obtainable 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 hundreds of companions to design and construct merchandise, options, and ecosystems that tackle their challenges and alternatives, and the necessity to assist a extra sustainable world. Our applied sciences allow smarter mobility, extra environment friendly energy and power 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 could be discovered at

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