Texas Instruments Incorporated unveiled its latest solutions and product demonstrations for AC to DC/DC point-of-load applications at 2008 Digital Power Forum in San Francisco, Calif.. TI experts have also presented a variety of technical papers on digital power at the conference.
The UCD9240 pulse-width modulation controller, now in volume production, digitally manages up to four independent outputs and up to eight phases. The UCD92K family of controllers supports switching frequencies up to 2 MHz with up to 1 mV resolution, enabling DC conversions down to 500 mV from a 16-V input source.
The controllers are configured using an easy-to-use Fusion Digital Power Designer tool. The tool, which is free and downloadable, simplifies the development process and improves time-to-market by allowing the designer to easily configure many power supply parameters, including voltage and current thresholds with selectable fault response; supply voltage sequencing; monitoring; soft start/stop; tracking; margining; control loop response; phase management and fan control.
TI also introduced three complementary digital PowerTrain modules to further simplify DC/DC converter design by providing a high-degree of space saving component packaging and convenience. The PTD08A006W, PTD08A010W, PTD08A020W and 6-A, 10-A, 20-A modules integrate the inductor, MOSFETs and the UCD7230 driver. Additionally, reference designs using integrated driver/MOSFET technology are available for applications that require ultra-high conversion efficiencies.
TI provides a variety of tools for customers to develop around today’s digital power technologies. The following tools were demonstrated in the TI booth, including the newly announced modular TMS320C2000 microcontroller (MCU) development kits using interchangeable TMS320F28x based controlCARDs:
UCD9240EVM four-rail non-isolated DC/DC evaluation module with the Fusion Digital Power Designer tool
C2000™ Digital Power Experimenter’s Kit (TMDSDCDC2KIT) is designed for those new to software-based digital power management. The kit provides a highly functional development environment including a DC/DC motherboard
C2000 DC/DC Digital Power Developer’s Kit (TMDSDCDC8KIT), which targets multi-rail and multi-phase applications and demonstrates the management of up to 16 rails
C2000 AC/DC Developer's Kit (TMDSACDCKIT) provides low-power rectification of a 12-volt AC input using a phase-shifted full-bridge topology and a front end with two-phase interleaved power factor correction (PFC).
Texas Instruments
