Description

The CS5464 is an integrated power measurement device which combines three ∆Σ 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, active power, apparent power, and reactive power for high-performance power measurement applications.

Features

• Energy Data Linearity: ±0.1 of Reading over 1000:1 Dynamic Range

• On-chip Functions:

- Instantaneous Voltage, Current, and Power

- IRMS and VRMS, Active, Reactive, and Apparent Power

- Current Fault and Voltage Sag Detect

- System Calibrations / Phase Compensation

- Temperature Sensor

- Energy-to-pulse Conversion

- Positive-only Accumulation Mode

• Meets Accuracy Spec for IEC, ANSI, & JIS

• Low Power Consumption

• Tamper Detection in 2-Wire Distribution Systems

• 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.

• Power Supply Configurations

VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to +5 V