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STPMS2L-PUR 데이터시트(PDF) 14 Page - STMicroelectronics |
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STPMS2L-PUR 데이터시트(HTML) 14 Page - STMicroelectronics |
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14 / 36 page ![]() Applications STPMS2 14/36 DocID16525 Rev 5 Table 6: Recommended external components in metering applications Function Component Description Value Tolerance Unit Calculator STPMC1 Line voltage interface Resistor divider R-to-R ratio VRMS = 230 V 1:1650 ±1% 50 ppm/°C V/V R-to-R ratio VRMS = 110 V 1:830 Line current interface Rogowski coil Current-to-voltage ratio kS 0.15 ±5% 50 ppm/°C mV/A CT 1.7 Shunt 0.43 Above listed components refer to a typical metering application. The STPMS2 operation is not limited to the choice of these external components. Figure 5: Simplified application schematics for the STPMC1 energy metering-based |
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