V9221B
Feature
- Metering active and reactive energy, both positive and negative;
- Wide dynamic range, and high accuracy of active and reactive energy metering: Less than 0.1% error on active and reactive energy metering over a dynamic range of 2000 to 1 at 25°C;
- RMS values of one voltage channel and two current channels: Less than 0.2% error on voltage and current RMS metering over a dynamic range of 500 to 1 at 25°C;
- Metering energy based on current: 1 current input for active and reactive energy metering, or 2 current inputs for active energy metering;
- Supporting shunts, current transformers, and Di/Dt current sensors;
- Generating both E1 and E2 CF pulses;
- Calculating apparent power, active power and reactive power;
- Gain calibration and phase compensation;
- 2-step compensation of active and reactive power;
- Generating an interrupt when a zero crossing in the voltage channel is detected;
- Metering energy at 1/4 clock rate, metering energy based on a constant power value, and supporting low power consumption;
- Supporting serial peripheral interfaces (SPI) on-chip;
- Calibrating meters via software;
- Reference: 1.18V (20ppm/°C drift);
- Power supply: 3.3V
- 24-lead Shrink Small Outline Package (SSOP)
Technology Documentation
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