M90E32AS_14 Datasheet, PDF (1/84 Pages) ATMEL Corporation – Enhanced Poly-Phase High-Performance Wide-Span

Atmel M90E32AS
Enhanced Poly-Phase High-Performance Wide-Span
Energy Metering IC
PRELIMINARY DATASHEET
FEATURES
Metering Features
• Metering features fully in compliance with the requirements of IEC62052-11,
IEC62053-22 and IEC62053-23, ANSI C12.1 and ANSI C12.20; applicable in poly-
phase class 0.2S, 0.5S or class 1 watt-hour meter or class 2 var-hour meter.
• Accuracy of ±0.1% for active energy and ±0.2% for reactive energy over a
dynamic range of 6000:1.
• Temperature coefficient is 6 ppm/ ℃ (typ.) for on-chip reference voltage. Automati-
cally temperature compensated.
• Single-point calibration on each phase over the whole dynamic range for active
energy; no calibration needed for reactive/ apparent energy.
• ±1 ℃ (typ.) temperature sensor accuracy.
• Flexible piece-wise non-linearity compensation: three current (RMS value)-based
segments with two programmable thresholds for each phase. Independent gain and
phase angle compensation for each segment.
• Electrical parameters measurement: less than ±0.5% fiducial error for Vrms, Irms,
mean active/ reactive/ apparent power, frequency, power factor and phase angle.
• Active (forward/reverse), reactive (forward/reverse), apparent energy with indepen-
dent energy registers.
• Programmable startup and no-load power thresholds.
• 6 dedicated ADCs for phase A/B/C current and voltage sampling circuits. Current
sampled over Current Transformer (CT) or Rogowski coil (di/dt coil); voltage sam-
pled over resistor divider network.
• Programmable power modes: Normal, Idle, Detection and Partial Measurement
mode.
• Fundamental (0.2%) and harmonic (1%) active energy with dedicated energy /
power registers and independent energy outputs.
• Current and voltage instantaneous signal monitoring.
• Enhanced event detection: sag, over voltage, phase loss, over current, reverse V/I
phase sequence, calculated neutral line current I_NC over-current and frequency
upper and lower threshold.
Other Features
• 3.3V single power supply. Operating voltage range: 2.8V~3.6V. Metering accuracy
guaranteed within 3.0V~3.6V.
• Four-wire SPI interface.
• Programmable voltage sag detection and zero-crossing output.
• Crystal oscillator frequency: 16.384MHz. On-chip two capacitors and no need of
external capacitors.
• Lower power consumption. I=13mA (typ.) in Normal mode.
• TQFP48 package.
• Operating temperature: -40 ℃ ~ +85 ℃ .
Atmel-46003A-SE-M90E32AS-Datasheet_052014