As a perfect programmable integrated digital controller
Provides maximum flexibility and performance for AC/DC and isolated DC/DC power designs

TI Korea (CEO Kent Jeon, www.ti.com/ww/kr ) February 13, 2012 – TI has added a highly integrated digital power controller optimized for AC/DC and isolated DC/DC power supply applications to its portfolio of analog and digital power management solutions. The UCD3138 provides an innovative pathway for developers to increase power density and reliability across various power supply topologies used in servers, communications rectifiers, high-power DC-DC modules, and more. (For sample and development kit orders, please visit www.ti.com/ucd3138-prkr )

Through digital control capabilities, developers can realize more in power system design, such as hardware design reusability across multiple platforms and the flexibility to fine-tune performance and control parameters for each application, and also shorten time-to-market. And to make this possible, the UCD3138 integrates a powerful 32-bit microprocessor, a high-speed precision data converter, multiple programmable hardware control loops, various communication engines, etc., into a small 6mm x 6mm package.

Key Features and Advantages of UCD3138
• Increased efficiency under peak and light loads: This device enhances efficiency by providing various control functions such as synchronous-FET soft on-off control, dynamic phase shedding, dynamic frequency regulation, and dynamic mode switching.
• Supports all isolated power supply topologies: The controller supports single-phase, two-phase interleaved, bridgeless PFC, hard-switching full-bridge, phase-shifted full-bridge, resonant LLC, and various other topologies.
• Integration of all essential protection functions: This device implements features such as peak current mode control, cycle-based peak current limiting, high-speed input voltage feed-forward, and overvoltage, overcurrent, and overheating protection.

Easy-to-use GUI and development tools
Developers have easy access to numerous digital power development tools, including full voltage, feature-rich evaluation modules, development kits, reference designs, application firmware source code, programmer manuals, and the Code Composer Studio™ software development environment. TI's Fusion Digital Power Designer graphical user interface (GUI) software tool not only allows for the flexible configuration of key power parameters but also provides telemetry, logging, and communication capabilities. In addition, it offers various hardware design tools to key customers, such as control cards and open-loop evaluation modules. Furthermore, TI provides easy-to-use development kits and reference designs as follows:

• Development Kit:
o UCD3138PFCEVM-026: General-purpose input, 400Vout AC/DC PFC development kit, configurable in single-phase, two-phase interleaved, and bridgeless topologies.
o UCD3138PSFBEVM-027: 400Vin/12Vout DC/DC Phase Shift Full Bridge
o UCD3138LLCEVM-028: 400Vin/12Vout DC/DC Half-Bridge Resonance LLC
o UCD3138HSFBEVM-029: 48Vin/12Vout DC/DC Hard Switching Full Bridge

• Reference Design:
o Universal Input, 12V Out 600W AC/DC Reference Design (PFC + LLC, PFC + Phase Shift Full Bridge)
o 48Vin/12Vout 1/8 Brick DC/DC Reference Design (Hard Switching Full Bridge)