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TI delivers two flyback power solutions

18 Mar 2014

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Texas Instruments introduced two flyback power solutions that achieve energy efficiency and low standby power consumption for 5W to 100W AC/DC power supplies. The UCC28910 700-V flyback switcher and UCC28630 Green-Mode controller expand TI's portfolio of flyback controllers covering the complete power range of AC/DC adapters and power supplies used in personal electronics, printers, white goods and smart meters.

TI's UCC28910 switcher with integrated high-voltage power MOSFET features the lowest constant-current output tolerance of 5 per cent, providing an accurate, maximum current across different input voltages. Additionally, the UCC28630 controller's ability to support primary side regulation (PSR) technology improves reliability in 10W to 100W power supplies.

The UCC28910 achieves 80 per cent average efficiency in 7.5W designs and 78 per cent efficiency at a 10 per cent load. The UCC28630, on the other hand, achieves greater than 88 per cent average efficiency in 65W to 130W designs and 87 per cent efficiency at a 10 per cent load.

Both flyback solutions support primary side regulation and eliminate the need for an optocoupler feedback circuit to increase reliability.

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