HomedatasheetCS5461A

CS5461A Datasheet

PMIC - Energy Metering
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Description

The CS5461A is an integrated power measurement device which combines two ΔΣ 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, and active power for single-phase, 2- or 3-wire power metering applications.The CS5461A is optimized to interface to shunt resistors or current transformers for current measurement,and to resistive dividers or potential transformers for voltage measurement.The CS5461A 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. CS5461A Features • Energy Data Linearity: ±0.1% of Reading over 1000:1 Dynamic Range• On-chip Functions: - Instantaneous Voltage, Current, and Power - IRMS and VRMS, Apparent and Active (Real) Power - Energy-to-pulse Conversion for Mechanical Counter/Stepper Motor Drive - System Calibrations and Phase Compensation - Temperature Sensor - Voltage Sag Detect• 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 E2PROM.• Power Supply Configurations: VA+ = +5 V; AGND = 0 V; VD+ = +3.3 V to +5 V
Features

Parameters

[{"Name":"Input Impedance","Value":"30 kOhm"},{"Name":"Measurement Error","Value":"0.1%"},{"Name":"Voltage - I/O High","Value":"0.8V"},{"Name":"Voltage - I/O Low","Value":"0.2V"},{"Name":"Current - Supply","Value":"2.9mA"},{"Name":"Voltage - Supply","Value":"4.75 V ~ 5.25 V"},{"Name":"Operating Temperature","Value":"-40°C ~ 85°C"},{"Name":"Meter Type","Value":"Single Phase"},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

SIEMENS [SIEMENS SEMICONDUCTOR GROUP]
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