CS5461A

CS5461A Single Phase, Bi-directional Power/Energy IC Features Description Energy Data Linearity: ±0.1% of Reading over The CS5461A is an integrated power measure- 1000:1 Dynamic Range ment device which combines two  On-chip Functions: analog-to-digital converters, power calculation - Instantaneous Voltage, Current, and Power engine, energy-to-frequency converter, and a - IRMS and VRMS, Apparent and Active (Real) Power - Energy-to-pulse Conversion for Mechanical Counter/Stepper Motor Drive - System Calibrations and Phase Compensation serial interface on a single chip. It is designed to accurately measure instantaneous current and voltage, and calculate VRMS, IRMS, instantaneous power, apparent power, and active power for single-phase, 2- or 3-wire power metering - Temperature Sensor applications. - Voltage Sag Detect Meets Accuracy Spec for IEC, ANSI, & JIS. The CS5461A is optimized to interface to shunt resistors or current transformers for current mea- Low Power Consumption surement, and to resistive dividers or potential Current Input Optimized for Sense Resistor. transformers for voltage measurement. GND-referenced Signals with Single Supply On-chip 2.5 V Reference (25 ppm/°C typ) Power Supply Monitor Simple Three-wire Digital Serial Interface “Auto-boot” Mode from Serial E2PROM. The CS5461A features a bi-directional serial interface for communication with a processor, and a programmable energy-to-pulse output function. Addition...