RN8207C can measure active power, reactive power, active energy and reactive energy, and can provide active power and RMS, voltage RMS, line frequency, zero-crossing interrupt, etc. to achieve flexible anti-tampering solutions.

RN8207C supports all-digital gain, phase and offset calibration, with the active and reactive energy pulses respectively output from the pins of PF and QF.

RN8207C provides serial interfaces uart, to facilitate communication with the external MCU.The 

baudrate is 4800.

The internal power supply monitoring circuit of RN8207C can ensure reliable operation of the chip when  power on and off.

Features

1.Measurement

n Two channels of Σ-△ ADC are provided.

n The active energy accuracy is less than 0.1% (< 0.1%) over a dynamic range of 8000:1 with the 

2.IEC62053-22: 2003 Standard supported.

n The reactive energy accuracy is less than 0.1% (< 0.1%) over a dynamic range of 8000:1 with 

the IEC62053-23: 2003 Standard supported.

n one-channel current and one-channel voltage RMS is provided, with the RMS accuracy <0.1% 

3.over the 1000:1 dynamic range.

n No-load threshold is adjustable.

n Reverse active power indication is provided.

n Provide voltage channel frequency measurement.

n Provide voltage channel zero-crossing detection.

4.Software meter calibration

n The meter constant (HFConst) is adjustable.

n Gain and phase calibration is provided.

n Offset calibration is provided for active, reactive and RMS.

n Reactive phase calibration is provided.

n Acceleration is provided for small-signal meter calibration.

n Automatic checksum is provided for configuration parameters.

5.UART interfaces are provided

6.Power supply monitoring is provided

7.3~5.5 V power supply with the typical power consumption value of 15mW@5V, 8mW@3.3V

8.Built-in 1.25V ± 1% reference voltage, with typical temperature coefficient of 5ppm / ℃

9.SOP16L lead-free green package is adopted.