CS5464

CS5464 Three-channel, Single-phase Power/Energy IC Features & Description Energy Linearity: ±0.1% of Reading over 1000:1 Dynamic Range On-chip Functions: - Voltage and Current Measurement - Active, Reactive, and Apparent Power/Energy - RMS Voltage and Current Calculations - Current Fault and Voltage Sag Detection - Calibration - Phase Compensation - Temperature Sensor - Energy Pulse Outputs Meets Accuracy Spec for IEC, ANSI, & JIS Low Power Consumption Tamper Detection and Correction Ground-referenced Inputs with Single Supply On-chip 2.5 V Reference (40 ppm / °C typ.) Power Supply Monitor Function Three-wire Serial Interface to Microcontroller or E2PROM Power Supply Configurations GND: 0 V, VA+: +5 V, VD+: +3.3 V to +5 V Description The CS5464 is a watt-hour meter on a chip. It measures line voltage and current and calculates active, reactive, apparent power, energy, power factor, and RMS voltage and current. There are two separate inputs to measure line, ground, and/or neutral current enabling the meter to detect tampering and to continue operating. An internal RMS voltage reference can be used if voltage measurement is disabled by tampering. Four  analog-to-digital converters are used to measure voltage, two currents, and temperature. The CS5464 is designed to interface to a variety of voltage and current sensors. Additional features include system-level calibration, voltage sag and current fault detection, peak detection, phase compensation, and e...