CS5462

CS5462 Low-cost Power/Energy IC with Pulse Output Features  Single-chip Power Measurement Solution  Energy Data Linearity: ±0.1% of Reading over 1000:1 Dynamic Range  On-chip functions: Measures Energy and Performs Energy-to-Pulse Conversions  Meets Accuracy Spec for IEC 687/1036  On-chip System Calibration Option  High-pass Filter Option for Both I and V  2 Available Current Input Ranges  On-chip 2.5 V Reference (25 ppm/°C typ)  Pulse Outputs for Stepper Motor or Mechanical Counter  On-chip Energy Direction Indicator  Ground Reference Input Signals with Single Supply  High-frequency Output for Calibration  On-chip Power-on Reset  Power Supply Configurations: VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to 5 V I Description The CS5462 is a low-cost power meter solution combining two  analog-to-digital converters ADCs), an energy-to-frequency converter, and energy pulse outputs on a single chip. It is designed to accurately measure and calculate energy for single-phase 2- or 3wire power metering applications with minimal external components. Low-frequency energy outputs, E1 and E2, supply average real power and can be used to drive a stepper motor or a mechanical counter; the high-frequency energy output FOUT can be used for calibration; and NEG indicates negative power. The CS5462 has configuration pins which allow for direct configuration of pulse output format, pulse output frequency, current channel input range, high-pass filter option, and on-chip calibratio...