[原创] Microchip MCP39F511A AC／DC转换器双模式电源监视方案

Microchip公司的MCP39F511A是高度集成完整单相电源监视集成电路,包括两路Delta-Sigma ADC,16位计算引擎,EEPROM和灵活2线接口,设计用于实时测量AC或DC电源的输入功率,能够检测输入电压以便工作于DC或是AC模式.集成的低漂移基准电压具有7 ppm/℃,SINAD性能达到94.5dB,动态范围4000:1时的精度0.1%,扩展的温度范围-40℃ 到 +125℃,主要用在智能家庭/城市的电源监测,工业照明监测,再生能源的功率测量,智能电源分配单元和服务器电源监视器.本文介绍了MCP39F511A主要特性,功能框图和应用电路以及MCP39F511A电源监视器演示板ADM00667主要特性,电路图,材料清单和PCB设计图.

The MCP39F511A device is a highly-integrated,complete single-phase power-monitoring IC designedfor real-time measurement of input power for AC or DCpower supplies, making it suitable for a wide range ofconsumer and industrial applications. It is capable of detecting the input voltage in order to work as DC or ACmode. It includes dual-channel Delta-Sigma ADCs, a16-bit calculation engine, EEPROM and a flexible2-wire interface. Separate AC and DC calibrationregisters are provided, to ensure high-accuracymeasurements in both modes. An integrated low-driftvoltage reference with 7 ppm/℃ in addition to 94.5 dBof SINAD performance on each measurement channelallows for better than 0.1% accurate designs across a4000:1 dynamic range.

MCP39F511A主要特性:

• Real-Time Measurement of Input Power for AC orDC Supplies..

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