Unlike alternative solutions that depend on costly A/D converters to measure a system’s power, the new device utilizes patent-pending TruePower technology to output average power during a specified interval over a serial digital interface. This information is used by the system controller to optimize overall power consumption, delivering benchmark current accuracy of 1.0 percent.
Alternative solutions require expensive A/D converters. The IR3725, however, with its Truepower technology, is an easy to implement, highly configurable, stand alone IC that precisely measures power to optimize overall power consumption while significantly reducing total system cost.
With a voltage accuracy of 1.5 percent, the IR3725 provides design engineers with the option to use resistive sensing or inductor DCR current sensing with an internal thermal compensation feature to achieve high efficiency while reducing component count and board size.
A datasheet is available on the International Rectifier website at www.irf.com. Evaluation boards are available upon request.