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SA9102FPA

SINGLE PHASE BIDIRECTIONAL POWER/ENERGY METERING IC WITH INSTANTANEOUS PULSE OUTPUT

South African Micro Electronic Systems 

SA9102F/SA9102H

R3, R6 and R4 set the current for the voltage sense input. The values should be selected

so that the input current into the voltage sense input (virtual ground) is set to 14µA.

R7 defines all on-chip bias and reference currents. With R7 = 24kΩ, optimum conditions

are set. R7 may be varied within ±10% for calibration purposes. Any change to R7 will

affect the output quadratically (i.e.: R = +5%, f = +10%).

7

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Figure 1: Application Circuit using a Shunt Resistor for Current Sensing.

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