IR3720 monitor with power control technology. Free Technical Library News

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IR3720 monitor with power control technology

31.01.2009

International Rectifier has announced the IR3720 digital I2C output power monitor IC for use in low voltage DC/DC converters used in laptops, desktops and servers.

As a result of its patented TruePower technology, the IR3720 delivers excellent current setting accuracy (0,2% typical error) over the entire range of input voltages and loads. Information about the output current or voltage is sent to the system controller through the digital I2C interface to achieve maximum power control efficiency. Alternative technical solutions involve separate monitoring of voltage and current, which can lead to a measurement error of more than 30% in dynamic modes.

On the contrary, the use of innovative TruePower technology to dynamically measure the power at the output or load of a voltage regulator makes the IR3720 a simple means of maximizing system efficiency.

The new IC provides thermally compensated monitoring of output filter inductor current in 0,5V to 1,8V buck or multi-phase converters for improved conversion efficiency, reduced component count and board size.

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