Maxim 78M6613单相交流电能测量解决方案

Maxim公司的78M6613是高度集成的单相交流电能测量集成电路,提供和电压与电流传感器接口的四个模拟输入,2000:1电流和温度范围内,电能Wh的精度优于0.5%,基准电压优于40ppm/°C,带32位计算引擎(CE)的22位Delta-Sigma ADC,8位80515 MPU,带安全的32KB闪存,主要用于电源,智能电器和其它嵌入AC负载的监视和控制.本文介绍了78M6613主要特性, 功能方框图, AFE框图和Teridian™ 78M6613评估板主要特性, 应用框图,电路图,材料清单和PCB布局图.

The 78M6613 is a highly integrated IC for simplified implementation of single-phase AC power measurement into power supplies, smart appliances, and other applications with embedded AC load monitoring and control. It is packaged in a small, 5mm x 5mm, 32-pin QFN package for optimal space savings.

At the measurement interface, the device provides four analog inputs for interfacing to voltage and current sensors. Voltages from the sensors are fed to our Single Converter Technology® that uses a 22-bit delta-sigma ADC, independent 32-bit compute engine (CE), digital temperature compensation, and precision voltage references to provide better than 0.5% power measurement accuracy over a wide 2000:1 dynamic range.
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