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AC power monitor minimises design errors

04 Feb 2014

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Microchip Technology created its newest real-time power monitoring IC to withstand extreme environments and help improve power-system design accuracy. Housed in 28-lead QFN 5mm x 5mm packaging, the MCP39F501 comes with its own demonstration board and is currently sold for $1.82 each in 5,000-unit quantities.

Microchip's MCP39F501 consists of two 24bit delta-sigma ADCs, a 16bit calculation engine, EEPROM and a flexible two-wire interface. An integrated low-drift voltage reference in addition to 94.5dB of SINAD performance on each measurement channel allows accurate designs with just 0.1 per cent error across a 4000:1 dynamic range. The device enables high-performance, cost-effective designs of commercial products such as server and networking power supplies, power distribution units and lighting systems. It is also ideal for smart plugs, power metres and industrial equipment. Additionally, the wide operating temperature range from -40℃ to +125℃ allows the MCP39F501 to be utilised in more extreme environments, such as industrial machinery applications.

"Government regulations, technology innovations and end customer expectations is driving the need for better power monitoring solutions in consumer, commercial and industrial products," said Bryan J. Liddiard, marketing vice president of Microchip's Analog and Interface Products Division. "The MCP39F501 will allow our customers to add advanced power monitoring capabilities to their applications with nominal effort."

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