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STPMS2L-PUR データシート(PDF) 12 Page - STMicroelectronics |
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STPMS2L-PUR データシート(HTML) 12 Page - STMicroelectronics |
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12 / 33 page  Application STPMS2 12/33 Doc ID 16525 Rev 3 Note: Above listed components refer to typical metering application. Anyhow, STPMS2 operation is not limited to the choice of these external components. 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=230V 1:1650 ±1% 50ppm/°C V/V R to R ratio VRMS=110V 1:830 Line current interface Rogowski coil Current-to-voltage ratio KS 0.15 ±5% 50ppm/°C mV/A CT 1.7 ±5% Shunt 0.43 ±5% Figure 5. Simplified application schematics for STPMC1 based energy metering AM09893v1 R S T N LOAD Ant i Al i a s i ng Ne t wor k CIN CIP GND VCC VDD DAT DAT n CL K MS 1 MS 0 MS 3 MS 2 VBG VIP VIN Ant i Al i a s i ng Ne t wor k CIN CIP GND VCC VDD DAT DAT n CL K MS 1 MS 0 MS 3 MS 2 VBG VIP VIN Ant i Al i a s i ng Ne t wor k CIN CIP GND VCC VDD DAT DAT n CL K MS 1 MS 0 MS 3 MS 2 VBG VIP VIN Ca lc ula t or STPMC1A DAT CL K DAS DAR |
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