Highly integrated digital power controller targets AC/DC and isolated DC/DC power designs
Digital control capabilities allow designers to do more with their power systems, including re-usability of hardware designs across multiple platforms and the versatility to fine-tune performance and control parameters for each application, allowing faster time to market. To enable this, the UCD3138 combines a powerful 32-bit microprocessor, high-speed precision data converters, multiple programmable hardware control loops and various communication engines in a small 6-mm x 6-mm package.
The UCD3138 boosts peak and light load efficiency by featuring several control functions to increase efficiency, including sync-FET soft on-off control, dynamic phase shedding, dynamic frequency adjustment and dynamic mode switching.
Supporting all isolated power supply topologies, the controller supports single-phase, two-phase interleaved, or bridgeless power factor correction, hard-switching full-bridge, phase-shifted full-bridge, resonant LLC and other topologies.
The device integrates all essential protection features: The device implements peak current mode control, cycle-by-cycle peak current limiting, high-speed input voltage feed-forward, over-voltage, over-current and over-temperature protection.
Designers will have easy access to several digital power development tools including full-voltage and feature-rich evaluation modules, development kits, reference designs, application firmware source code, programmer’s manuals and the Code Composer Studio software development environment. TI’s Fusion Digital Power Designer graphical user interface (GUI) software tool provides flexible configuration of key power parameters, as well as telemetry, logging, and communication functions. A broad range of hardware design tools, such as control card and open-loop evaluation modules, are available to select customers. In addition TI offers easy-to-use development kits and reference designs.