STMicroelectronics

STPM11ATR

STPM11ATR Description

The STPM11ATR from STMicroelectronics is a high-precision single-phase energy metering IC designed for surface-mount applications. Packaged in Tape & Reel (TR) for automated assembly, this IC operates within a 3V to 5.5V supply range, consuming just 4.7mA of current. It delivers exceptional accuracy with a 0.1% measurement error, making it ideal for applications demanding reliable energy monitoring. The device features 100kΩ input impedance and supports I/O logic levels of 0.8V (low) and 1.5V (high), ensuring compatibility with a wide range of systems. Although marked as obsolete, it remains a robust choice for legacy designs due to its ROHS3 compliance and REACH-unaffected status.

STPM11ATR Features

• High Accuracy: 0.1% measurement error for precise energy tracking.
• Low Power: 4.7mA supply current minimizes energy consumption.
• Wide Voltage Range: Operates from 3V to 5.5V, adaptable to various power conditions.
• Surface-Mount Design: 20TSSOP package ensures compact PCB integration.
• Robust Compliance: Meets ROHS3 and REACH environmental standards.
• Legacy Support: Suitable for maintaining or upgrading older metering systems.

STPM11ATR Applications

The STPM11ATR excels in single-phase energy metering systems, including:

• Smart Meters: Accurate energy consumption monitoring for residential and industrial use.
• Power Monitoring Devices: Integration into power strips, inverters, and renewable energy systems.
• Legacy System Upgrades: Replacement for outdated metering ICs without redesigns.
• Battery-Powered Solutions: Low current draw makes it ideal for portable or off-grid applications.

Conclusion of STPM11ATR

The STPM11ATR offers a balance of precision, low power, and compliance, making it a dependable choice for energy metering despite its obsolete status. Its wide voltage range and surface-mount packaging ensure versatility in both new and legacy designs. Engineers seeking a cost-effective, high-accuracy solution for single-phase metering will find this IC particularly valuable.