MAXIM INTEGRATED PRODUCTS 71M6532F-IGT/F 芯片, 特殊功能
The is an energy meter IC in 100 pin LQFP 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 has two differential current inputs and three 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
