The MAX78630+PPM/D00 is an energy measurement processor for polyphase monitoring system in 32 pin TQFN package. It is designed for real time monitoring for a variety of typical three phase configurations in industrial applications. It provides up to six analogue inputs for interfacing to voltage and current sensors. Scaled voltages from sensors are fed to single converter front end utilizing a high resolution delta sigma converter. Supported current sensors include current transformers (CT), Rogowski coils and resistive shunts. An embedded 24bit measurement processor and firmware perform all necessary computations and data formatting for accurate reporting to 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. It is designed to interface to host processor via UART interface alternatively, SPI or I2C may also be used.
● Supply voltage range is 3V to 3.6V
● Operating temperature range from -40°C to 85°C
● 6 configurable analogue inputs for monitoring a variety of delta & wye connected 3-phase topologies
● Supports current transformers (CT), resistive shunts and rogowski coils
● Delta sigma ADC with precision voltage reference and on chip temperature sensor
● Internal or external oscillator timing reference
● Interface options with configurable I/O pins for alarm signalling, address pins or user control
● Supports extraction of individual harmonics
