STPM10 - STMicroelectronics

STPM10 Programmable single-phase energy metering IC

The STPM10 is designed for effective measurement of active, reactive and apparent energy in a power line system using current transformer and shunt sensors. The device can be implemented for peripheral measurement in a microcontroller-based single-phase or poly-phase energy meter. The STPM10 consists of two main sections: analog and digital. The analog part .

Features

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■ Measures active, reactive, and apparent energies Current, voltage RMS and instantaneous measurement Frequency measurement Ripple-free active energy pulsed output Live and neutral monitoring for tamper detection Fast and simple one-point digital calibration over the whole current range Integrated linear voltage regulators for digital and analog supply Selectable RC or crystal oscillator Supports 50 - 60 Hz - IEC62052-11, IEC620532x specifications Less than 0.1% error in the 1000:1 range Precision voltage reference: 1.23 V with 30 ppm/°C max controlled through the SPI by m.