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Power monitor IC keeps real-time eye on multiple loads

Power monitor IC keeps real-time eye on multiple loads

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By eeNews Europe



The IC includes three analogue to digital convertors (ADCs) for voltage and two current load measurements, a 16-bit calculation engine, EEPROM and a flexible 2-wire interface. Microchip says that the dual-channel power-monitoring IC facilitates application design as it reduces firmware development and the number of ICs required for power monitoring of multiple loads.

An integrated low-drift voltage reference in addition to the 94.5 dB of SINAD performance on each current measurement channel allows the MCP39F511N to monitor two current loads with 0.5% error across a 4000:1 dynamic range. The ability to measure active, reactive and apparent power, active and reactive energy accumulation, RMS current and RMS voltage, line frequency, and power factor combined with advanced, integrated features allows system designers of high-performance devices to reduce bill of materials and reduce time-to-market.

The MCP39F511N is supported by the MCP39F511N Power Monitor Demonstration Board (Part no. ADM00706), which is available now for $200. In a 28-lead, 5×5 mm QFN package the IC is priced at $1.82 (5,000).

A video is at; www.microchip.com/Metering-020116a

Microchip; www.microchip.com/MCP39511N-020116b

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