1、Specifications
Operating voltage: 3.0-3.6V
Operating temperature: -40~+105℃
Typical power consumption: 8.5mA@26MHz
System clock: 6.5MHz internal RCH
Current input: CT/Rogowski coil
2、Metering function
- 6 independent oversampling ∑/∆ ADCs
- Within a 10000:1 dynamic range the error of full-wave / fundamental active energy measurement is less than 0.2%.
- Within a 10000:1 dynamic range the error of full-wave/ fundamental reactive energy measurement is less than 0.2%.
- The RMS error for full-wave and fundamental wave voltage/current measurements is less than 0.2% within a 2000:1 dynamic range.
3、Features
- Supports arbitrary mapping of current sampling channels
- Baud Rate Adaptive UART Interface
- Supported Baud Rates: 1200bps to 19200bps
- Supports detection of overcurrent overvoltage undercurrent undervoltage voltage swell and voltage sag
- Supports DMA transmission of sampled data up to 512 points/cycle
- 10ms fast waveform detection (overcurrent/overvoltage for power protection applications)
- 10ms fast refresh of instantaneous RMS values
- Multifunction I/O can be flexibly configured as zero-crossing square wave / interrupt output / active data upload