71M6531D-IM/F

MAXIM INTEGRATED PRODUCTS  71M6531D-IM/F  芯片, 特殊功能

The is an energy meter IC in 68 pin QFN package. This highly integrated systems-on-chip SOC with an MPU core, RTC, FLASH and LCD driver. The patented Single Converter Technology with a 22bit delta-sigma ADC, four analogue inputs, digital temperature compensation, precision voltage reference, battery voltage monitor and 32bit computation engine CE supports a wide range of residential metering applications with very few low cost external components. A 32KHz crystal time base for the entire system and internal battery backup support for RAM and RTC further reduce system cost. The IC supports 2-wire, 3-wire single phase and dual phase residential metering along with tamper detection mechanisms. It offers single ended inputs for two current channels and two single ended voltage inputs.

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Supply voltage range is 3V to 3.6V

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Operating temperature range from -40°C to 85°C

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Wh accuracy < 0.1% over 2000:1 current range, exceeds IEC62053/ANSI C12.20 standards

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Four sensor inputs, four-quadrant metering & energy display during mains power failure

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Low-jitter Wh & VARh plus 2 additional pulse test outputs 4 total, 10KHz maximum with pulse count

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Line frequency count for RTC, digital temperature compensation & independent 32bit CE

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46Hz-64Hz line frequency range with same calibration, phase compensation ± 7°

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BROWNOUT 52µA typ, LCD 21µA typ, DAC active & SLEEP 0.7µA typ are 3 battery backup modes

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8bit MPU 80515, 1 clock cycle per instruction, 10MHz maximum with integrated ICE for debug

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Tamper detection neutral current with CT, rogowski or shunt, magnetic tamper input