STPM10

NRND

Programmable single phase energy metering IC with tamper detection

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  • 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.

Circuit Diagram

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      STEVAL-IPE015V1

      Description:

      Single-phase energy metering demonstration board with two current transformers based on the STPM10
      STEVAL-IPE018V1

      Description:

      Single-phase energy metering demonstration board with one current transformer based on the STPM10

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STMicroelectronics - STPM10

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STPM10BTR
NRND
TSSOP 20 Industrial Ecopack2

STPM10BTR

Package:

TSSOP 20

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

TSSOP 20

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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ECCN (US)
ECCN (EU)
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Temperature (°C) Autoshutdown
Budgetary Price (US$)*/Qty
More info
min
max
STPM10BTR Available at 6 distributors

Distributor availability ofSTPM10BTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1727 1 Order Now
AVNET AMERICA 2500 0 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 574 0 Order Now
MOUSER WORLDWIDE 1474 1 Order Now
Farnell Element14 EUROPE 719 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1727

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

574

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1474

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

719

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-25

Buy Direct
NRND
EAR99 NEC Tape And Reel TSSOP 20 - - - 1.5 / 1k
MORE INFO

Unit Price (US$):

1.5

Country of Origin:

PHILIPPINES

STPM10BTR

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.5 / 1k

Distributor availability ofSTPM10BTR

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1727 1 Order Now
AVNET AMERICA 2500 0 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 574 0 Order Now
MOUSER WORLDWIDE 1474 1 Order Now
Farnell Element14 EUROPE 719 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1727

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

2500

Min.Order

0

Region

AMERICA Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

574

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1474

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

719

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TSSOP 20

Operating Temperature (°C)

(min)

-

(max)

-

Autoshutdown

-

Budgetary Price (US$)* / Qty

1.5 / 1k

Country of Origin

PHILIPPINES

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors