TI unveil industry's most efficient flyback PMICs

17th March 2014

Nat Bowers

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Combining high density with high efficiency, the UCC28910 700V flyback switcher and the UCC28630 high-power, Green-Mode controller have been announced by Texas Instruments. The company have claimed that the flyback power solutions achieve the highest energy efficiency and lowest standby power consumption for 5-100W AC/DC power supplies.

Suitable for use in personal electronics, printers, white goods and smart meters, TI’s UCC28910 switcher features an integrated high-voltage power MOSFET. The company believe that this achieves the industry’s best stand-by power consumption for 5-10W designs and features the lowest constant-current output tolerance of 5%. This provides an accurate, maximum current across different input voltages. Additionally, the UCC28630 controller’s ability to support primary side regulation technology improves reliability in 10-100W power supplies. In order to increase reliability, both flyback solutions support primary side regulation and eliminate the need for an optocoupler feedback circuit.

TI's claim that the solutions offer the industry's highest energy efficiency is substantiated with the UCC28910 achieving 80% average efficiency in 7.5W designs and 78% efficiency at a 10% load; and the UCC28630 achieves greater than 88% average efficiency in 65-130W designs, and industry-best 87% efficiency at a 10% load. The PMICs meet and exceed EC standby regulations, including the IPP 5-star mobile charger rating of less than 3mW power performance for no-load, stand-by power and the EC Code of Conduct (Tier 1 and 2) for 5-10W designs (UCC28910) and for 30W designs (UCC28630).

TI helps engineers speed time to market with six fully tested PowerLab reference designs using the UCC28910. Download them from the TI website. The company also offers the UCC28910FBEVM and UCC28630EVM are priced at $99 (USD).

Both available in a 7-pin SOIC package, the UCC28910 is priced at $0.75 (USD) and the UCC28630 is priced at $0.60 (USD), in 1,000 unit quantities. Samples and production quantities will be available in April 2014.