Digital Power

Digital Controllers and Integrated PowIRstages target Intel VR12.5

International Rectifier Corp. has launched its latest generation of highly versatile, PMBus™ enabled, CHiL digital PWM controllers and integrated PowIRstage® solutions that significantly improve efficiency and reduce board space and component count in a variety of mid-range to high-end server, desktop and computing applications. IR’s new digital controllers meet Intel VR12 and VR12.5 specifications, and support multiphase designs from 1 to 8 phases operating 1 to 2 loops. These digital controllers can be used in combination with a choice of seven new PowIRstage® products to deliver an optimized high-performance end-to-end multiphase solution for CPU and DDR memory applications.

These latest generation CHiL controllers offer enhanced features over the previous generation including significant expansion in the PMBus command set, substantial reduction in quiescent current to enable higher peak efficiency, min/max telemetry recording and an improved high-speed phase balance algorithm.

The company's latest PowIRstage® solutions integrate a high performance driver, control and synchronous MOSFETs with accurate, temperature compensated, on-chip current sense reporting and provide cycle-by-cycle over-current protection to self-protect against harsh circuit conditions such as inductor saturation events. Temperature sensing, reporting and over-temperature protection are also available in addition to a fault-flag output. These PowIRstage® devices are offered in 6x6mm PQFN packages, rated at 40A, 50A and 60A with over-molded and exposed top options available providing flexibility to achieve optimal thermal design.

IR offers dedicated demo boards and fully documented reference designs. These CHiL digital power solutions are fully supported by IR's real-time GUI for design and development, and hardware interface tools to communicate and program the CHiL devices.

International Rectifier Corp.
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