IC enables energy-efficient DC/DC converters.
March 27, 2009 -
Supplied in 12-pin, 3 x 4 mm DFN Pb-free package, IR3725 input power, voltage, and current monitor IC is intended for 12 V power supplies used in CPU, server, and storage applications. TruePower(TM) technology is utilized to output average power during specified interval over digital I²C interface. This information is used by system controller to optimize overall power consumption, delivering current accuracy of 1.0% and voltage accuracy of 1.5%.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
International Rectifier Corp.
233 Kansas St.
El Segundo, CA, 90245
USA
IR's IR3725 Input Power Monitor IC with Digital Interface Delivers Superior System Accuracy for Energy-Efficient DC-DC Converters
EL SEGUNDO, Calif. - International Rectifier, IR (NYSE: IRF), a world leader in power management technology, today 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 a highly versatile input power, voltage and current monitor IC for 12V power supplies. Unlike alternative solutions that depend on costly A/D converters to measure a system's power, the new device utilizes patent-pending TruePowerTM 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," said George Schuellein, marketing director, IR's Multiphase Products, Enterprise Power Business Unit.
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.
Specifications
Part Number Current Accuracy Vin range Voltage Accuracy Bias Supply Voltage Operating Temperature Package
IR3725M 1.0% 8V - 23.5V 1.5% +3.3V +/- 5% -10 °C to 150 °C 12-lead 3x4mm DFN
A datasheet is available on the International Rectifier website at www.irf.com. Evaluation boards are available upon request. Contact vviswan1@irf.com.
Availability and Pricing
Available in a 12-pin DFN lead-free package, pricing for the IR3725MTRPBF begins at US $1.25 each in 10,000-unit quantities. Production orders are available immediately. The devices are RoHS compliant and prices are subject to change.
About International Rectifier
International Rectifier (NYSE:IRF) is a world leader in power management technology. IR's analog and mixed signal ICs, advanced circuit devices, integrated power systems and components enable high performance computing and reduce energy waste from motors, the world's single largest consumer of electricity. Leading manufacturers of computers, energy efficient appliances, lighting, automobiles, satellites, aircraft and defense systems rely on IR's power management benchmarks to power their next generation products. For more information, go to www.irf.com.
Trademark Notice
IR® and TruePower(TM) are trademarks of International Rectifier Corporation. All other product names noted herein may be trademarks of their respective holders.
For more information, contact Graham Robertson, grobert1@irf.com 310-726-8512.
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