STPMC1

www.DataSheet4U.com STPMC1 Programmable poly-phase energy calculator IC Features ■ ■ ■ Supports 1-, 2- or 3-phase WYE and Delta services, from 2 to 4 wires Computes cumulative active and reactive wideband and fundamental harmonic energies Computes active and reactive energies, RMS and momentary voltage and current values for each phase Supports Rogowski coil, current transformer, Shunt or Hall current sensors Exclusive ripple-free energy calculation algorithm Programmable pulsed output Stepper motor outputs Neutral current, temperature, and magnetic field monitoring OTP memory for configuration and calibration SPI interface Supports IEC 62052-11 / 62053-21 / 62053-22 / 62053-23 standards Less than 0.1 % error over 1:1000 dynamic range functions needed in a 1-, 2- or 3-phase energy meter. It can be coupled with a microprocessor for multifunction energy meters, or it can directly drive a stepper motor for a simple active energy meter. The calculator has five input data pins. The first three receive the voltage and current information of the phases. In fact, each data input processes two ΔΣ signals, multiplexed in time and generated by the STPMSx device. The fourth input receives multiplexed ΔΣ signals also, and can be used to sense the neutral current or another signal temperature, for example. The fifth input data pin accepts non-multiplexed ΔΣ signals and it can be used for sensing the magnetic field information from a Hall sensor. Four internal hard-wired DSP (digital sign...