One of the main problems that systems designers face is how to easily add accurate and flexible power monitoring capability to their product. The Microchip MCP39F501 offers an easy to use solution for this situation. The MCP39F501 is capable of 0.1% measurement error (typ.) over a 4000:1 dynamic range. The included power calculations are active, reactive and apparent power, true RMS current, RMS voltage, line frequency, power factor, and fifteen programmable event notifications, such as over-current, voltage sag, surge protection, and others.