IR3725 Datasheet | International Rectifier

Data Sheet INPUT POWER MONITOR WITH DIGITAL INTERFACE .. Features DESCRIPTION The IR3725 is a highly configurable power monitor IC that uses proprietary digital technology to measure a 12V rail current, its voltage, or its average power over a user specified time interval. Configuration and result reporting are managed through a serial digital interface. The current is measured as a voltage across a shunt resistance, an input inductor, or a copper trace resistance. The real time voltage and current signals are multiplied, digitized, and averaged over a user selectable averaging interval providing True Power™ measurement of highly dynamic loads. - Accurate power, current, or voltage reporting - 1.5 % maximum power error - 1.0 % maximum current error - Serial digital interface - SMBus and I2C patible - Programmable averaging interval - Flexible current sensing - Resistive or Inductor DCR - Applications - Synchronous rectified buck converters - Multiphase converters - 12pin 3x4 DFN lead free - Ro HS pliant TYPICAL APPLICATION CIRCUIT +12V Input Capacitors Buck Regulators 3.3V VDD To system Controller DCR CCS1 IR3725 VO I2C CCS2 ALERT# VT VCS2 ADDR VCS1...