Cirrus Logic CS5463K-ISZR

The CS5463 is an integrated power measurement device which combines two analog-to-digital converters, power calculation engine, energy-to-frequency converter, and a serial interface on a single chip. It is designed to accurately measure instantaneous current and voltage, and calculate VRMS, IRMS, instantaneous power, apparent power, active power, and reactive power for single-phase, 2- or 3-wire power metering applications. The CS5463 is optimized to interface to shunt resistors or current transformers for current measurement, and to resistive dividers or potential transformers for voltage measurement. The CS5463 features a bi-directional serial interface for communication with a processor and a programmable energy-to-pulse output function. Additional features include on-chip functionality to facilitate system-level calibration, temperature sensor, voltage sag detection, and phase compensation.

• Energy Data Linearity: ±0.1% of Reading over 1000:1 Dynamic Range
• On-chip Functions:
  • Instantaneous Voltage, Current, and Power
  • IRMS and VRMS, Apparent, Reactive, and Active (Real) Power
  • Active Fundamental and Harmonic Power
  • Reactive Fundamental, Power Factor, and Line Frequency
  • Energy-to-pulse Conversion
  • System Calibrations and Phase Compensation
  • Temperature Sensor
• Meets accuracy spec for IEC, ANSI, JIS.
• Low Power Consumption
• Current Input Optimized for Sense Resistor.
• 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 EPROM
• Power Supply Configurations: VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to +5 V