STPM10:Programmable single phase energy metering IC with tamper detection

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 sigma-delta 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. There is also an internal volatile memory, which is controlled through the SPI by means of a dedicated command set. The configured bits are used for configuration and calibration purposes. From a pair of sigma-delta output signals produced by the analog section, the DSP unit computes the amount of active, reactive and apparent energy consumed, as well as the RMS and instantaneous voltage and current values. The results of the computation are available as pulse frequencies and states on the digital outputs of the device, or as data bits in a data stream, which can be read from the device by means of the SPI interface. The system bus interface is also used for temporary programming of bits of internal volatile memory. The STPM10 generates an output signal with a pulse frequency proportional to the energy, and this signal is used in the calibration phase of the energy metering application.

Key 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
Product Specifications
DescriptionVersionSize
DS6896: Programmable single-phase energy metering IC with tamper detection4.0565 KB
Application Notes
DescriptionVersionSize
AN3398: Fast digital calibration procedure for STPMC1 based energy meters1.0185 KB
AN2159: SPI protocol for STPM01/STPM10 metering devices3.1665 KB
User Manuals
DescriptionVersionSize
UM1569: STEVAL-IHP004V1: SmartplugW demonstration board1.01 MB
UM1524: STEVAL-IPE012V2: single-phase energy meter with 80 A maximum current based on the STPM10 metering IC and STM8L152C6 MCU1.01 MB
UM1529: Single-phase energy meter with 80 A maximum current based on STPM10 metering IC and STM8L152C6 MCU with dual interface EEPROM1.01 MB
UM1599: The STPM01 and STPM1x evaluation software1.0792 KB
Presentations
DescriptionVersionSize
ST products and solutions for solar energy5.12 MB
Flyers
DescriptionVersionSize
Poly-phase chipset for energy measurement1.0361 KB
Brochures
DescriptionVersionSize
Smart grid distribution and smart meters - Energy-efficient solutions2.01 MB
Solution Evaluation Tools
Part NumberManufacturerDescription
STEVAL-IPE012V2Single-phase electricity meter with 10 A / 80 A current range based on the STPM10 and STM8L152
STEVAL-IPE015V1Single-phase energy metering demonstration board with two current transformers based on the STPM10
STEVAL-IPE016V1Single-phase energy metering demonstration board with one current transformer and one shunt resistor based on the STPM10
STEVAL-IPE017V1Single-phase energy metering demonstration board with one shunt resistor based on the STPM10
STEVAL-IPE018V1Single-phase energy metering demonstration board with one current transformer based on the STPM10
STEVAL-IPE020V1Single phase electricity meter with dual EEPROM M24LR64 and STPM10 and STM8L152
Sample & Buy
Part NumberPackagePacking TypeOperating Temperature (°C) (min)Operating Temperature (°C) (max)AutoshutdownUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
STPM10BTRTSSOP 20Tape And Reel---1.51000NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
STPM10BTRTSSOP 20IndustrialEcopack2md_ya_tssop20_mbyaul57ab5.xml
Programmable single-phase energy metering IC with tamper detection STPM10
circuit_diagram_17728_thumbnail.png STPM10
Fast digital calibration procedure for STPMC1 based energy meters STPMC1
SPI protocol for STPM01/STPM10 metering devices STPM10
STEVAL-IHP004V1: SmartplugW demonstration board M24LR64-R
STEVAL-IPE012V2: single-phase energy meter with 80 A maximum current based on the STPM10 metering IC and STM8L152C6 MCU STEVAL-IPE012V2
Single-phase energy meter with 80 A maximum current based on STPM10 metering IC and STM8L152C6 MCU with dual interface EEPROM STEVAL-IPE020V1
The STPM01 and STPM1x evaluation software STPM10
STEVAL-ISV006V2: solar battery charger using the SPV1040 STEVAL-ISV006V2
Poly-phase demonstration kit with the STPMC1 and STPMS2 STPMS2
STEVAL-ISA062V1: 6 W, wide-range dual and single output SMPS demonstration board based on the VIPer17 STEVAL-ISA062V1
md_ya_tssop20_mbyaul57ab5.xml STPM10