Especificaciones
This is a three-phase multi-channel energy metering processor IC developed by Analog Devices, previously belonging to Maxim Integrated product line, specially designed for industrial three-phase power parameter collection and real-time power monitoring.
Part Number Definition
MAX78630+PPM represents the core metering chip main model with built-in firmware and non-volatile storage function. D00 stands for 32-pin exposed pad TQFN standard specification version. T indicates tape-and-reel packaging for automated SMT placement and mass production assembly.
Core Function and Electrical Specifications
The chip is equipped with six analog input channels, which can be connected to voltage and current signals. It is compatible with three mainstream sampling modes including current transformer, sampling resistor and Rogowski coil, supporting both star and delta three-phase wiring topologies. It integrates high-precision delta-sigma analog-to-digital converter, internal reference voltage source and on-board temperature detection sensor. The built-in 24-bit dedicated metering processor completes power, electric energy, power factor, harmonic component calculation automatically without extra operation from main controller. It carries 8KB flash memory to store calibration parameters and configuration data, supporting offline standalone operation. Supply voltage range is 3V to 3.6V, typical working supply current is 8.1mA. It provides three optional communication interfaces including UART, I2C and SPI, and reserves configurable GPIO pins for alarm output and hardware address setting. Users can select internal oscillator or external crystal as system clock source according to project requirements.
Package and Assembly Requirements
Package type is 5mm×5mm 32-WFQFN with exposed thermal pad, surface mount soldering mode. It is classified as MSL3 moisture sensitive device, and reflow soldering needs to be finished within 168 hours after unpacking vacuum packaging. Standard reel packaging mode meets the feeding demand of fully automatic patch equipment on production lines.
Environmental and Compliance Standards
Operating temperature range covers -40℃ to +85℃, adapting to indoor industrial equipment and field power monitoring terminals. The whole device adopts lead-free production process and meets RoHS and REACH environmental control standards. Optimized internal circuit layout improves anti-interference performance and measurement stability under complex electromagnetic environment.
Campos de aplicación típicos
Intelligent three-phase electric energy meters and multi-circuit power distribution monitoring modules Industrial cabinet power monitoring equipment and motor running state detection terminals UPS power supply, inverter equipment and new energy power conversion unit parameter acquisition Building intelligent power management system and power distribution cabinet data collection node Factory automated production line equipment power consumption statistics and fault early warning devices
LXB Semicon supplies original MAX78630+PPM/D00T three-phase energy measurement integrated circuit
