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Power-supply IC targets Blu-ray players, recorders

Posted: 03 Dec 2010     Print Version  Bookmark and Share

Keywords:Blu-ray players  power-supply IC  blue laser 

STMicroelectronics Corp. debuts a power-supply chip, the STODD01, capable of generating all the voltages needed to operate the player's circuitry, including the high-voltage driver for the blue laser supporting HD read/write capabilities. ST claims that the chip will enable smaller, lower-cost Blu-ray players and recorders.

The device integrates three power supplies to drive low-voltage digital ICs, analogue circuitry, and the laser driver. Using this chip, designers can eliminate multiple individual power supplies from the printed-circuit board, reducing component costs, design complexity, time to market, and assembly time. It has a programmable laser-driver output voltage allows use in battery-powered equipment. The size of the board can also be reduced, which will allow new generations of compact set-top products, game consoles, PC drives and portable HD devices.


Each of the STODD01's power-supply channels benefits from highly efficient switched-mode conversion — a 0.8A buck converter for digital circuitry, which minimises energy losses and heat generation. The device also provides a true shutdown mode, helping to minimise standby power consumption. This enables HD products to attract buyers by offering enhanced user experiences and low operating costs. A major manufacturer of DVD and Blu-ray equipment has already qualified the STODD01, recognising the importance of power management as the markets for HD equipment evolve.

The STODD01 is now sampling to lead customers and is ready for mass production in the QFN16L 4 x 4mm package, priced at Rs.35.74 ($0.80) in quantities of 1000. Alternative pricing options are available, depending on order quantity.

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