MAXQ3180 Datasheet | Maxim Integrated

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 puted 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. The MAXQ3180 performs voltage and current measurements using an integrated ADC that can measure up to seven external differential signal pairs. An eighth differential signal pair is used to measure the die temperature. An internal amplifier automatically adjusts the current channel gain to pensate for low-current channel-signal levels. - On-Chip User-Programmable Thresholds for Line Voltage Undervoltage and Overvoltage Detection - On-Chip Digital Integrator Enables Direct Interface-to-Current Sensors with di/dt Output - On-Chip Digital Temperature Sensor - Precision Internal Voltage Reference 2.048V (30ppm/°C Typical); Also Supports an External Voltage Reference Input - Active Energy of Each Phase and bined 3-Phase (k Wh), Positive and Negative - Active Power of Each Phase and bined 3-Phase (k W) - Reactive Energy of Each Phase and bined 3-Phase (k Varh), Quadrants 1 to 4 - Reactive Power of Each Phase and bined 3-Phase (k Var) - Apparent Energy of Each Phase and bined 3-Phase (k VAh) - Apparent Power of Each Phase and bined 3-Phase (k VA) - Line Frequency (Hz) - Power Factor - Overcurrent and Overvoltage Detection - Voltage Sag Detection - RMS Current and RMS Voltage - Line-Cycle-Wise Instant Current, Voltage, and Power - Phase Sequence Error Detection - Phase Voltage Absence Detection - Supports Software Meter Calibration - Up to 3-Point Multipoint Calibration to pensate for Transducer Nonlinearity - Power-Fail Detection - Bidirectional Reset Input/Output - SPI-patible Serial Interface with Interrupt Request (IRQ)...