STPM11ATR

Product Overview

Category: Integrated Circuit (IC)

Use: The STPM11ATR is a highly versatile and efficient power metering IC. It is designed to accurately measure electrical parameters in various applications, including energy monitoring, power management, and industrial automation.

Characteristics: - High accuracy measurement of voltage, current, power, and energy - Wide operating voltage range - Low power consumption - Compact and lightweight design - Easy integration into existing systems

Package: The STPM11ATR is available in a small outline package (SO-8) which ensures easy handling and compatibility with standard manufacturing processes.

Essence: This IC incorporates advanced technology and algorithms to provide precise and reliable power measurements, making it an essential component for accurate energy monitoring and management.

Packaging/Quantity: The STPM11ATR is typically sold in reels containing 2500 units per reel.

Specifications

• Operating Voltage Range: 2.7V to 3.6V
• Measurement Accuracy:
  • Voltage: ±0.1%
  • Current: ±0.2%
  • Power: ±0.5%
• Frequency Range: 45Hz to 65Hz
• Temperature Range: -40°C to +85°C
• Communication Interface: SPI (Serial Peripheral Interface)
• Power Consumption: 10mW (typical)

Detailed Pin Configuration

The STPM11ATR features an 8-pin configuration as follows:

1. VDD: Power supply input
2. GND: Ground reference
3. IRQ: Interrupt request output
4. SCLK: Serial clock input
5. SDI: Serial data input
6. SDO: Serial data output
7. CS: Chip select input
8. NC: No connection

Functional Features

• Accurate measurement of voltage, current, power, and energy
• High-speed data acquisition and processing
• Built-in calibration and self-diagnostic features
• Flexible configuration options for different applications
• Real-time monitoring and reporting of electrical parameters

Advantages and Disadvantages

Advantages: - High measurement accuracy ensures reliable data - Low power consumption minimizes energy usage - Compact design allows for easy integration into various systems - Versatile functionality caters to a wide range of applications

Disadvantages: - Limited frequency range may not be suitable for certain specialized applications - Requires external microcontroller or host system for complete functionality

Working Principles

The STPM11ATR utilizes advanced analog and digital signal processing techniques to accurately measure electrical parameters. It employs a combination of voltage and current sensing circuits, along with sophisticated algorithms, to calculate power and energy values. The IC communicates the measured data to an external microcontroller or host system via the SPI interface.

Detailed Application Field Plans

The STPM11ATR finds extensive use in the following application fields:

1. Energy Monitoring Systems: Enables precise measurement and monitoring of energy consumption in residential, commercial, and industrial settings.
2. Power Management: Facilitates efficient power distribution and load balancing in smart grids and renewable energy systems.
3. Industrial Automation: Provides accurate power measurements for process control, equipment monitoring, and energy optimization in manufacturing plants.

Detailed and Complete Alternative Models

1. STPM10ATR: Similar to the STPM11ATR, but with additional features such as harmonic analysis and reactive power measurement.
2. ADE7758: Power metering IC from Analog Devices offering high accuracy and comprehensive measurement capabilities.
3. MCP39F511: Microchip's power monitoring IC with built-in energy calculation and communication features.

These alternative models offer similar functionalities and can be considered based on specific application requirements.

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