TI unveils adapter power controller with lowest standby power

DALLAS, Nov. 12, 2012 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NASDAQ: [ TXN ]) today introduced a power management controller with a 700-V start-up switch that achieves less than 10 mW of "no-load" standby power in 5- and 10-watt cube adapters used with smartphones and tablets. In addition to the lower power capability, the new UCC28710 primary-side, regulated flyback controller helps designers create smaller cube adapters and AC-powered equipment. For more information and samples, visit: [ www.ti.com/ucc28710-pr ].

The innovative controller maintains an industry-best 78-percent average power efficiency at 5 watts, which allows adapters to meet the European Commission's 5-Star no-load power consumption rating of <30 mW. The UCC28710 also leverages TI's new .25um, 700-V analog process technology, called [ LBC7HV ], to integrate the start-up switch -- saving an additional 8 mW to 10 mW of standby power.

Key features and benefits of the UCC28710:

Lowest standby power: achieves <10-mW standby power consumption and provides high-voltage start-up capability.
Highest integration with primary-side regulation: eliminates the need for an optocoupler and TL431 feedback circuit; supports widest input voltage range with VDD, resulting in smaller bias capacitors; supports smaller transformers because of its high-frequency operation; and reduces overall design size and complexity without the need for additional external circuits.

Speed time-to-market with adapter charging reference designs
The [ family of UCC287xx controllers ] includes the UCC28700, UCC28701 and other products to help customers simplify and speed their adapter designs. A new UCC28710 controller-based [ 10-W AC Eco-charger for tablets and smartphones ] design adds to TI's growing [ PowerLab™ reference design library ] for AC adapters, universal USB charging cubes and car chargers.

Availability and pricing
The UCC28710 flyback controller is available in a 7-pin, SOIC package and is priced at US$0.42 in quantities of 1,000. The 5-W [ UCC28711EVM ] evaluation module is available for ordering through TI's eStore. The module converts a 90-V to 265-V RMS input voltage down to 5 V DC, with a 1-A current limit for USB adapter applications.

Find out more about TI's adapter and charging portfolio:

Check out TI's extensive line of [ battery charger circuits ] for USB charging.
Review TI's [ power supply control ] portfolio for AC adapter power supplies.
Sample new [ wireless power ] receiver and transmitter circuits, including the bq51050B and bq50410A.
Select [ USB power switch products ], including the TPS2511.
Learn about TI's [ analog process technologies ], and watch the [ LBC7HV video ].
Ask questions and help solve problems in the Power Forum in the TI E2E™ Community: [ www.ti.com/powerforum-pr ].

About Texas Instruments
Texas Instruments semiconductor innovations help 90,000 customers unlock the possibilities of the world as it could be – smarter, safer, greener, healthier and more fun. Our commitment to building a better future is ingrained in everything we do – from the responsible manufacturing of our semiconductors, to caring for our employees, to giving back inside our communities. This is just the beginning of our story. Learn more at [ www.ti.com ].

Trademarks
TI E2E and PowerLab are trademarks of Texas Instruments. All registered trademarks and other trademarks belong to their respective owners.

SOURCE Texas Instruments Incorporated

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TI unveils adapter power controller with lowest standby power