Overview
The STPM01FTR, produced by STMicroelectronics, is a programmable single-phase energy metering IC designed for accurate measurement of active, reactive, and apparent energy in power line systems. This device can be used in various configurations, including as a standalone single-phase energy meter or as a peripheral component in microcontroller-based energy metering systems. It supports measurements using Rogowski coils, current transformers, and shunt sensors, ensuring versatility and precision in energy monitoring.
Key Specifications
| Parameter | Description |
|---|---|
| Package | TSSOP20 |
| Temperature Range | -40 to 85 °C |
| Supply Voltage | 3.3V / 5V |
| Interface | SPI |
| Measurement Accuracy | Less than 0.1% error |
| Frequency Support | 50 ÷ 60 Hz – IEC62052-11, IEC62053-2x specification |
| Voltage Reference | 1.23 V with 30 ppm/°C max |
Key Features
- Measurement of active, reactive, and apparent energy, as well as RMS values of voltage and current.
- Ripple-free active energy pulsed output for easy calibration.
- Live and neutral monitoring for tamper detection.
- Easy and fast digital calibration over the whole current range.
- One-Time Programmable (OTP) memory for calibration and configuration.
- Integrated linear voltage regulators for digital and analog supply.
- Selectable RC or crystal oscillator.
- Support for single wire meter mode using only a Rogowski coil sensor.
Applications
- Single-phase energy meters.
- Microcontroller-based energy metering systems for both single-phase and three-phase applications.
- Industrial and residential energy monitoring systems.
- Smart grid applications requiring precise energy measurement and tamper detection.
Q & A
- What is the primary function of the STPM01FTR?
The primary function of the STPM01FTR is to measure active, reactive, and apparent energy in power line systems.
- What types of sensors does the STPM01FTR support?
The STPM01FTR supports measurements using Rogowski coils, current transformers, and shunt sensors.
- What is the accuracy of the STPM01FTR in energy measurement?
The STPM01FTR has an accuracy of less than 0.1% error in energy measurement.
- What interface does the STPM01FTR use for communication?
The STPM01FTR uses the SPI interface for communication.
- What is the temperature range of the STPM01FTR?
The temperature range of the STPM01FTR is -40 to 85 °C.
- Can the STPM01FTR be used in microcontroller-based systems?
Yes, the STPM01FTR can be used as a peripheral component in microcontroller-based energy metering systems.
- What is the purpose of the OTP memory in the STPM01FTR?
The OTP memory is used for calibration and configuration of the device.
- Does the STPM01FTR support tamper detection?
Yes, the STPM01FTR supports live and neutral monitoring for tamper detection.
- What is the package type of the STPM01FTR?
The STPM01FTR comes in a TSSOP20 package.
- What are the supported frequency ranges for the STPM01FTR?
The STPM01FTR supports frequencies from 50 to 60 Hz, complying with IEC62052-11 and IEC62053-2x specifications.
