IR3725 IC delivers one per cent current accuracy
International Rectifier
IR3725
International Rectifier has introduced the IR3725 input power monitor IC with digital I2C interface for low-voltage DC-DC converters used in energy-efficient CPU, server and storage applications.
The IR3725 is suitable for 12V power supplies.
Unlike alternative solutions that depend on costly A/D converters to measure a system's power, the new device uses Truepower technology to output average power during a specified interval over a serial digital interface.
This information is used by the system controller to optimise overall power consumption, delivering current accuracy of one per cent.
The IR3725 is an easy to implement, highly configurable stand-alone IC that precisely measures power to optimise overall power consumption while significantly reducing total system cost.
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.
It features a voltage accuracy of 1.5 per cent.
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