Maxim Integrated MAX78615 PPM/A03

Description
The MAX78615 PPM is an isolated energy measurement processor (EMP) chipset for polyphase power monitoring systems. It provides flexible sensor configuration for up to three MAX78700s or MAX71071s, offering up to six isolated analog inputs for voltage and current sensors. Scaled sensor voltages are processed by a high-resolution delta-sigma converter. Supported current sensors include resistive shunts and current transformers (CTs).
An embedded 24-bit measurement processor and firmware perform computations and data formatting for accurate reporting to the host. Nonvolatile flash memory stores calibration coefficients and device configuration settings, enabling autonomous operation. The MAX78615 PPM interfaces with host processors via UART, SPI, or I²C and is available in a 24-pin TQFN package.

Features
Best-in-class embedded algorithms for accurate electricity measurements (voltage, current, frequency, power/energy, power quality)
Configurable device for design flexibility (nonvolatile storage, multiple interface options, configurable I/O pins)
Highly integrated features for compact designs and reduced BOM
Small 24-pin TQFN package
Internal or external oscillator timing references
Three remote ADC interfaces for cost-effective and reliable isolation
Quick calibration routines for reduced manufacturing costs
Digital temperature compensation

Applications
Polyphase submetering
Building automation systems
Inverters and renewable energy systems
Level 1 and 2 EV charging systems
Grid-friendly appliances and smart plugs