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Power/Alternative Energy??

Maxim touts polyphase IC for electricity metering

Posted: 17 Apr 2008 ?? ?Print Version ?Bookmark and Share

Keywords:polyphase IC MAXQ3180? precision electricity measuring? microprocessor MAXQ?

Maxim Integrated Products has introduced the MAXQ3180, a highly accurate and low-power polyphase IC for measuring electricity activity. The MAXQ3180 integrates an 8-channel A/D converter and a high-performance MAXQ microprocessor for computing a broad set of poly-phase multifunction energy metering parameters. Six of the input channels are dedicated to the three phase voltages and three currents. One channel is dedicated for the neutral line current monitoring, and the 8th channel is for on-chip temperature monitoring. With this high integration, the MAXQ3180 makes it easy to monitor the power grid and load status.

The MAXQ3180 monitors neutral line current flow, detects a voltage sequence error, and measures current in the absence of the phase voltages. The device exceeds all relevant international standards for electricity metering (IEC 62053-21, IEC 62053-22, IEC 62053-23). The device provides two configurable pulse outputs (typically for active and reactive energy) that can be set to output any of a large array of operational parameters. The MAXQ3180 interfaces with a host microcontroller through the standard SPI protocol.

The MAXQ3180 is packaged in a 28-pin TSSOP package and operates over the -40C to +85C temperature range. Three-phase power meter reference designs are available to speed designs and reduce time-to-market. Prices start at $5.25 for 1,000 units and above.





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