STPM10BTR

Overview

The STPM10BTR is a programmable single-phase energy metering IC designed for effective measurement of active, reactive, and apparent energy in power line systems using current transformers or shunt sensors. It integrates analog preamplifiers, sigma-delta A/D converters, and a hard-wired DSP to compute RMS and instantaneous voltage and current values. The device supports IEC62052-11 and IEC62053-2x specifications with less than 0.1% error across a 1000:1 range. It features ripple-free pulsed outputs for active energy and SPI-based digital calibration.

Feature Summary

• Measures active, reactive, and apparent energies alongside RMS and instantaneous voltage and current values
• Provides ripple-free active energy pulsed output proportional to consumed energy
• Includes live and neutral monitoring capabilities for tamper detection
• Supports fast one-point digital calibration over the entire current range

Applications

• Microcontroller-based single-phase energy meters
• Poly-phase energy meter peripheral measurement
• Power line system energy monitoring

Procurement Notes

Verify the specific suffix against official STMicroelectronics documentation to confirm package type and tape-and-reel specifications. Ensure compatibility with required IEC standards for your application. Confirm operating temperature ranges and supply voltage requirements match your system design before procurement.

Selection Notes

Select this component for applications requiring high-accuracy single-phase energy metering with integrated signal conditioning. The built-in DSP eliminates the need for complex external processing for basic energy calculations. Consider the SPI interface for configuration and data retrieval when designing the host microcontroller connection.

Part Context

The STPM10 belongs to STMicroelectronics' family of programmable energy metering ICs. It is specifically engineered for single-phase applications, offering a compact solution that combines analog front-end processing with digital computation. This integration reduces board space and simplifies the design of compliant energy meters.

Replacement Considerations

Consult official STMicroelectronics substitution guides for verified alternatives. Generic replacements may not support the same IEC compliance levels or calibration methods.