SY7T611+U2

• Voltage Monitoring:

RMS and Average (DC) Voltage

Line Frequency and Zero-Crossing

Sag and Surge Detection

Flexible Min and Max Tracking

Fundamental and Harmonics Calculations

• Current Monitoring:

RMS and Average (DC) Current

Zero-Crossing

Flexible Min and Max Tracking

Fundamental and Harmonics Calculations

Shunt or CT (On-Chip Phase Compensation)

• Power and Energy:

Active, Reactive and Apparent Power

Power Factor

Net Active, Reactive Energy

Configurable Energy Pulse Output

• Communication Interfaces:

UART, SPI

• Auxiliary Functions:

Dual Relay Control, support of non-latching and latching relays

On-Chip Calibration Routines and Coefficient Storage

Flexible Alarm Generation and Signaling

UART Auto-Reporting Mode

The SY7T611 is an energy measurement processor (EMP), in a 24TQFN package, designed specifically for BOM optimized applications such as smart-plugs, smart appliances, lighting and home/building automation.

The analog front end (AFE) provides configurable analog inputs for interfacing to current sensors and voltage sensors respectively. Scaled voltages from the sensors are fed to a high-resolution deltasigma converter. A low power 24-bit energy measurement processor (EMP) with embedded firmware performs all the necessary computation, compensation, and data formatting for interfacing to any host controller. With integrated flash memory for storing nonvolatile data such as calibration coefficients and input configuration settings, the device provides an autonomous solution that simplifies system integration.