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STPM11 데이터시트(PDF) 11 Page - STMicroelectronics |
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STPM11 데이터시트(HTML) 11 Page - STMicroelectronics |
11 / 45 page STPM11/12/13/14 Electrical characteristics 11/45 II Input current on CLKIN ±1 µA RP External resistor 1 4 M Ω CP External capacitors 22 pF fCLK Nominal output frequency 4 4.194 MHz 8 8.192 RC Oscillator (STPM11/13) ICLKIN Settling current fCLK= 4 MHz 40 60 µA RSET Settling resistor 12 k Ω tJIT Frequency jitter 1 ns On chip reference voltage VREF Reference voltage 1.23 V Reference accuracy ±1 % TC Temperature coefficient After calibration 30 50 ppm/°C Configuration interface timing FSCLKw Data write speed 100 KHz tDS Data setup time 20 ns tDH Data hold time 0 ns tSYN SYN-NP active width 2/fCLK s Table 4. Electrical characteristics (VCC = 5 V, TA= 25°C, 2.2 µF between VDDA and VSS, 2.2 µF between VDDD and VSS, 2.2 µF between VCC and VSS unless otherwise specified) Symbol Parameter Test conditions Min. Typ. Max. Unit Table 5. Typical external components Function Component Parameter Value Tolerance Unit Line voltage interface Resistor divider R to R ratio VRMS = 230 V 1650 ±1% V/V R to R ratio VRMS = 110 V 830 ±1% Line current interface Current shunt Current to voltage conversion ratio 0.2 ±5% mV/A Current transformer 30 ±12% Rogowsky coil 3 ±12% |
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