DESCRIPTION

· The CS5464 is a watt-hour meter IC designed for single-phase power and energy measurement.
· It measures line voltage and current, calculating active, reactive, and apparent power, energy, power factor, and RMS voltage and current.
· Features tamper detection and correction, with two separate inputs for line, ground, and neutral current measurement.
· Includes four ΔΣ analog-to-digital converters for voltage, two currents, and temperature measurement.
· Interfaces with various voltage and current sensors, offering system-level calibration and energy pulse outputs.

FEATURES

· High energy linearity: ±0.1% of reading over a 1000:1 dynamic range.
· On-chip functions include voltage and current measurement, power/energy calculations, RMS calculations, fault detection, calibration, and temperature sensing.
· Meets accuracy specifications for IEC, ANSI, and JIS standards.
· Low power consumption with ground-referenced inputs and a single supply.
· Includes a 2.5 V reference (40 ppm/°C typical) and a power supply monitor function.
· Features a three-wire serial interface for microcontroller or E²PROM connection.

APPLICATIONS

· Suitable for single-phase power and energy measurement in residential and industrial settings.
· Ideal for applications requiring tamper detection and correction in energy metering.
· Used in systems needing accurate RMS voltage and current calculations.
· Applicable in environments where system-level calibration and energy pulse outputs are required.