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TI's new products address power systems' performance

Posted: 10 Mar 2005 ?? ?Print Version ?Bookmark and Share

Keywords:texas instruments? ti? fusion digital power? applied power electronics conference? apec?

The new digital power products from Texas Instruments Inc. (TI) promise to significantly enhance the performance and lifetime of today's power systems.

Demonstrating its line of Fusion Digital Power solutions at the 2005 Applied Power Electronics Conference (APEC) in Austin, Texas, the company revealed how digitally controlled power systems offer greater performance and design flexibility at a competitive cost.

"Power conversion and management complexities increasingly challenge system developers," said Hans Stork, TI's CTO and keynote speaker at APEC. "Combining leading digital and analog capabilities enabled by advances in process technology is a natural step in our power solution offering."

TI's Fusion Digital Power solutions include the UCD9K, UCD8K and UCD7K series of complementary devices that support power supply systems from AC-line to point-of-load applications, including telecommunications, UPS, computer server and data-centric power systems.

The UCD9K high resolution digital power controllers with integrated specialized power peripherals have the ability to close one or more feedback loops and provide communications and supervisory functions. Achieving up to 150ps digital PWM resolution, these DSP-based and microcontroller-based controllers contribute in several areas of complex power conversion, including multi-phase control, non-linear control, load-sharing and predictive failure. TI added that the UCD9K family also makes power solutions much more energy efficient by providing the capability and flexibility to optimize power conversion over a broad range of loads.

Meanwhile, the UCD8K and UCD7K devices offer digital control support by integrating key power management functionality best performed by analog circuits. The UCD7K devices are MOSFET drivers that easily interface the digital power controller to the power stage, and provide protection and bias supply management. The UCD8K controllers integrate the UCD7K devices with a digitally controlled analog PWM controller to close the feedback loop.

Gregg Lowe, SVP of TI's high-performance analog group, commented, "For the first time, the performance and flexibility of programmable digital technology has been merged with advanced analog power technology in a product line absolutely focused on power system needs."

Scalability and re-use of the software and peripherals allow the devices to change operating parameters to optimize a specific power system. In addition, the Fusion Digital Power products are supported by development support tools such as TI's DSP Code Composer Studio Integrated Development Environment and comprehensive digital power management application reference designs.

Samples of the Fusion Digital Power solutions are already available from TI. Volume production for the UCD9K, UCD8K and UCD7K is expected in the next six months, with suggested resale prices starting at $4.95 for the UCD9K, $1.99 for the UCD8K and 99 cents for the UCD7K.

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