Metering Functions

• Equipped with two channels of Σ-Δ ADC.

• Active energy error less than 0.1% within 5000:1 dynamic range, compliant with IEC62053-22:2003 standard.

• Supports measurement of voltage RMS, current RMS, active power and voltage line frequency.

• Adjustable creep threshold.

• Reverse power indication is available.

• Built-in reference voltage monitoring function.

Software Meter Calibration

• Adjustable meter constant (HFConst).

• Supports gain and phase correction.

• Provides offset calibration for active energy.

• Accelerated calibration function for small signal metering.

• Automatic verification function for configuration parameters.

General Features

• SPI / UART communication interfaces are provided.

• Integrated power supply monitoring function.

• Single +5V power supply; typical power consumption is 14mW.

• Built-in 2.5V±1% reference voltage with a typical temperature coefficient of 5ppm/℃.

• Adopts green SOP24 package, pin-to-pin compatible with RN8209G; without neutral line ADC input and related measurement functions.

RN8207G can measure active power, active energy, voltage RMS, current RMS and voltage line frequency.

RN8207G supports fully digital correction of gain, phase and offset. The active energy pulse is output via the PF pin.

RN8207G is equipped with SPI / UART interface to facilitate communication with external MCU.

The internal power monitoring circuit of RN8207G ensures reliable chip operation during power-up and power-down.

管脚功能说明