Microchip MCP39F511N双路单相电源监测方案

Microchip公司的MCP39F511N是带有校准的双路单相电源监测IC,包括有用于电流测量的双路24位Delta-Sigma ADC,用于电压测量的10位SAR ADC,16位校准引擎,EEPROM和灵活的两线接口,精度0.5%,动态范围4000:1,主要用在墙插座电源检测,家庭自动化电源监测,工业照明电源监测,AC/DC电源输入功率实时检测和智能电源分配单元.本文介绍了MCP39F511N主要特性,功能框图,典型应用电路图以及MCP39F511N电源监视器演示板主要特性,主要元件分布图,电路图,材料清单和PCB设计图.
The MCP39F511N is a highly integrated, completedual-channel single-phase power-monitoring ICdesigned for real-time measurement of input power fordual-socket wall outlets, power strips, and consumerand industrial applications. It includes dual-channel24-bit Delta-Sigma ADCs for dual-currentmeasurements, a 10-bit SAR ADC for voltagemeasurement, a 16-bit calculation engine, EEPROMand a flexible two-wire interface. An integrated low-driftvoltage reference with 10 ppm/℃ in addition to 94.5 dB of SINAD performance on each measurement channelallows for better than 0.5% accurate designs across a4000:1 dynamic range.
MCP39F511N主要特性:
• Power Monitoring of Two Loads with accuracy of0.5% across 4000:1 Dynamic Range
• Built-in Calculations on Fast 16-Bit ProcessingCore:
- Active, Reactive, Apparent Power
- True RMS Current, RMS Voltage
- Line Frequency, Power Factor
• 64-bit Wide Import and Export Active EnergyAccumulation Registers Per Channel
• 64-bit Four Quadrant Reactive EnergyAccumulation Registers Per Channel
• Signed Active and Reactive Power Outputs
• Dedicated Zero Crossing Detection (ZCD) PinOutput with Less than 200 μs Latency
• Dedicated PWM Output Pin with ProgrammableFrequency and Duty Cycle
• Automatic Event Pin Control through Fast VoltageSurge Detection
- Less than 5 ms Delay
• Two-Wire Serial Protocol with Selectable BaudRate up to 115.2 kbps using Universal
Asynchronous Receiver/Transmitter (UART)
• Fast Calibr...