78M6631 3相功率测量和监测SoC

78M6631 3相功率测量和监测SoC
The Teridian™ 78M6631 is a highly integrated 3-phase power measurement and monitoring system-on-chip (SoC), with a 10MHz 8051-compatible MPU core and Single Converter Technology® containing a 22-bit deltasigma converter and 32-bit compute engine (CE). The 78M6631 has been designed specifically for a wide variety of applications requiring 3-phase power and quality measurements. It supports both Delta and Wye configurations.
At the measurement interface, the device provides six analog inputs including three differential current and three voltage for interfacing to current and voltage sensors. The device provides better than 0.5% accuracy over a wide 2000:1 dynamic range.
The integrated MPU core and 128 KB of flash memory provide a flexible means of configuration, postprocessing, data formatting, interfacing to host processor via a UART or SPI interface, or using DIO pins for LEDs or relay control. Complete firmware is available from Maxim and can be loaded into the IC during manufacturing test.


78M6631 关键特性

< 0.5% Watt Accuracy Over 2000:1 Current Range and Over Temperature
Exceeds IEC 62053/ANSI C12.20 Standards
Voltage Reference < 40 ppm/°C
Six Analog Inputs Supporting 3-Phase Voltage and Current Measurement Inputs
Pin- or Bi-Selectable Delta or Wye Configuration
22-Bit Delta-Sigma ADC with Independent 32-Bit Compute Engine (CE)
8-Bit MPU (80515), One Clock Cycle per Instruction with 4KB MPU XRAM
128KB Flash with Security
32kHz Time Base with Hardware Watchdog Timer
UART, I²C, and High-Speed Slave SPI Host Interface Options
17 General-Purpose 5V Tolerant I/O Pins
Packaged in a RoHS-Compliant (6/6) Lead-Free 56-Pin TQFN
Application Firmware Includes (per Phase):
True RMS Current and Voltage Calculations
Active, Reactive, Apparent, Fundamental, and HARMonic Power Calculations
Fundamental and Harmonic Current and Voltage Calculations
Line Frequency and Power Factor Calculations
Phase Compensation (±18° at 60Hz)
Built-In Calibration Routines
Programmable Alarm Thresholds
Command Line (UART) Communications
High-Speed SPI Communications


78M6631应用/使用

楼宇自动化
数据中心、电信设备、存储设备电源和电源分配单元
电机诊断
太阳能逆变器