TI Unveils Green Controller for Consumer Electronics
Texas Instruments Inc. (TI) announced at the 2006 Applied Power Electronics Conference (APEC), in Dallas, a green-mode power management circuit that significantly improves energy efficiency in consumer electronic systems and ac power adapters.
TI's 8-pin, quasi-resonant, UCC28600 green-mode controller provides high power efficiency in full and light-load operating conditions and decreases power consumption in no-load standby mode. For example, the device enables standby power supplies in DLP® HDTVs, LCD and plasma digital TVs to achieve active-power mode efficiencies in excess of 88% and no-load power consumption levels below 300mW.
In addition, the UCC28600 improves power efficiency in notebook PC and gaming system ac adapters that support 40W to 200W. The UCC28600 is a flyback, pulse-width modulation device that efficiently meets the U.S. Environmental Protection Agency's Energy Star power requirements for consumer electronic systems.
The controller implements quasi-resonant control techniques, frequency fold-back operation in light load conditions and features a dedicated pin to disable the power factor correction stage in standby operation. The UCC28600 also integrates high-level protection features for energy-efficient power supplies up to 200W, including cycle-by-cycle power limit and over-current hiccup re-start mode.
The UCC28600 comes in an 8-pin SOIC package. It is sampling today with volume production expected in the second quarter. Suggested resale pricing in quantities of 1,000 is $0.49.
