The MAX78615+LMU/A01 is an isolated energy measurement processor (EMP) for load monitoring units in 24 pin TQFN package. The device is used for load monitoring and control of any 2-wire single phase or 3-wire split phase (120°/180°) AC circuit. It provides flexible sensor configuration of up to two MAX78700 (four analogue inputs) and numerous host interface options for easy integration into any system architecture. The internal 24bit processor and field upgradeable firmware performs all the necessary signal processing, compensation and data formatting for accurate real time measurement. Energy accumulation, alarm monitoring and fault detection schemes minimize overhead requirements of host interface or network. The integrated flash memory also provides for non-volatile storage of input configurations and calibration coefficients. It is used in inverters and renewable energy systems, level 1 and 2 EV charging systems.
● Supply voltage range from 3.15V to 3.45V
● Operating temperature range from -40°C to 85°C
● Best in class embedded algorithms support highly accurate electricity measurements
● Configurable device provides design flexibility
● VCC current of 5.6mA and nominal frequency of internal RC oscillator is 20MHz
● SPI, I2C and UART interface options
● Configurable I/O pins for alarm signalling, address pins or user control
● Highly integrated features support compact designs and reduced bill of materials
● Internal or external oscillator timing references digital temperature compensation
● Remote ADC interfaces provide cost effective and reliable isolation
