MAXQ3180-RAN+集成電路（IC）的電能計(jì)量規(guī)格書PDF中文資料

General Description

The MAXQ3180 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load. The computed results can be retrieved by an external master through the on-chip serial peripheral interface (SPI?) bus. This bus is also used by the external master to configure the operation of the MAXQ3180 and monitor the status of operations.

Features

? Compatible with 3-Phase/3-Wire, 3-Phase/4-Wire, and Other 3-Phase Services

? Active Power and Energy of Each Phase and Combined 3-Phase (kWh), Positive and Negative

? Reactive Power and Energy of Each Phase and Combined, Positive and Negative

? Apparent Power and Energy of Each Phase and Combined 3-Phase

? Neutral Line Current Measurement

? Line Frequency (Hz)

? Power Factors

? Voltage Phasor Angles

? Phase Sequence Indication

? Phase Voltage Absence Detection

? Voltage and Current Harmonic Measurement

? Fundamental and Total Power and Energy

? Two Pulse Outputs: Configurable for Active, Reactive, and Apparent Powers

? Programmable Pulse Widths

? Programmable No-Load Current Threshold

? Programmable Meter Constants

? Programmable Thresholds for Undervoltage and Overvoltage Detection

? Programmable Threshold for Overcurrent Detection

? Amp-Hours in Absence of Voltage Signals

? On-Chip Digital Temperature Sensor

? Precision Internal Voltage Reference 2.048V (30ppm/°C typical), Also Supports An External Voltage Reference

? Supports Software Meter Calibration

? Up to 3-Point Multipoint Calibration to Compensate for Transducer Nonlinearity

? Power-Fail Detection

? Bidirectional Reset Input/Output

? SPI-Compatible Serial Interface with Interrupt Request (IRQ) Output

? Single 3.3V Supply, Low Power (35mW typical)

Applications

??? 3-Phase Multifunction Electricity Meters