Monitor IC uses new technology to measure power over digital interface

Monitor IC uses new technology to measure power over digital interface

The IR3725 is an input-power voltage and current monitor IC for 12-V dc/dc converter power supplies. Instead of using A/D converters to measure a system’s power, this device uses a patent-pending technology, dubbed TruePower, 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 1.0% accuracy. The monitor targets low-voltage CPU, server, and storage applications.

The monitor enables use of resistive sensing or inductor DCR current sensing with an internal thermal compensation feature. The device has a voltage accuracy of 1.5%, a voltage range from 8 to 23.5 V, a bias supply voltage of 3.3 V ±5%, and an operating temperature of –10° to 150°C. (From $1.25 ea/10,000 — available now.)

International Rectifier , El Segundo , CA
Graham Robertson 310-726-8512

http://www.irf.com