Part Name
STPM10
Other PDF
PDF
page
47 Pages
File Size
1.7 MB
MFG CO.
STMicroelectronics
STPM10 Datasheet - STMicroelectronics
STMicroelectronics
Description
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 is composed of preamplifier and first-order sigmadelta A/D converter blocks, a band-gap voltage reference and low-drop voltage regulator. The digital part is composed of system control, oscillator, hard-wired DSP and SPI interface.
Features
• 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,
IEC62053- 2x specifications
• Less than 0.1% error in the 1000:1 range
• Precision voltage reference: 1.23 V with 30
ppm/°C max.
Part Name
Description
View
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