The MAX78630+PPM is an energy measurement processor for polyphase power monitoring systems. The Maxim Integrated device is designed for real-time monitoring for a variety of typical three-phase configurations in industrial applications, and is available in a 32-pin TQFN package with an exposed pad.
The chip provides up to six analog inputs for interfacing to voltage and current sensors. Scaled voltages from the sensors are fed to the single converter front-end using a high-resolution delta-sigma converter. Supported current sensors include current transformers, Rogowski coils and resistive shunts.
An embedded 24-bit measurement processor and firmware perform all necessary computations and data formatting for accurate reporting to the host. With integrated Flash memory for storing non-volatile calibration coefficients and device configuration settings, the MAX78630+PPM is capable of being a completely autonomous solution.
The IC is designed to interface to the host processor via UART interface; alternatively, SPI or I²C can also be used.
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