STPM10BTR - ST Microelectronics

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

STPM10BTR
Manufacturer

ST Microelectronics
ChipWorker Part#

CW22490592
Category

Power Management IC
RoHS

Lead free / RoHS Compliant
Description

AFE 2ADC 3.3V/5V 20Pin TSSOP T/R
Documentation

Datasheet

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STPM10BTR Specifications

Attribute	Attribute Value

Part Number	STPM10BTR
Manufacturer	ST Microelectronics
ChipWorker Part#	CW22490592
Category	Power Management IC
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	20 Pin
Case/Package	TSSOP-20
Supply Current	5 mA
Number of Channels	2 Channel
Number of Positions	20 Position
Input Impedance	100 kΩ
Number of ADCs	2 ADC
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	3.165V ~ 5.5V
Supply Voltage (Max)	5.5 V
Supply Voltage (Min)	3.165 V
Input Voltage	3.165V ~ 5.5V
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Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tape & Reel (TR)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
ECCN Code	EAR99

Product 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 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.

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