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MAXQ3181
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MAXQ3181

  • Category:Voltage Detector
  • Product Name:Low power, active energy, multiphase AFE
  • Manufacturers:MAXIM
  • Production Batch Number:12+
  • Encapsulation:sop
  • Stock Status:There is stock
  • Stock Quantity:3000
  • Minimum order quantity: 1
  • Details:Click here to find pdf information for the MAXQ3181
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  • Product introduction

MAXQ3181 Low Power, Active Energy, Multiphase AFE

description

The MAXQ3181 is a dedicated power measurement front end that collects and calculates multiphase voltage, current, active power, and energy, as well as many other metered multiphase load parameters. The results of the computation can be retrieved via an external host via the on-chip serial peripheral interface (SPI™) bus. The bus can also be used externally to configure the operation of the MAXQ3181 and monitor the status of actions.

The MAXQ3181 makes voltage and current measurements and can measure up to seven external differential signal pairs using an integrated ADC. The eighth differential signal pair is used to measure the die temperature. The internal amplifier automatically adjusts the current channel gain to compensate for the signal level of the low current channel.

Key features

  • Compatible with 3-Phase/3-Wire, 3-Phase/4-Wire, and other 3-Phase services
  • 0.1% active power and energy linearity error
  • 0.5% apparent power and energy linearity error
  • Linearity error of RMS voltage and RMS current 0.5%
  • Neutral current measurement
  • Line Frequency (Hz)
  • Power factor
  • Phase sequence indication
  • Phase voltage missing detection
  • Programmable pulse width
  • Programmable no-load current threshold
  • Programmable meter constant
  • Programmable undervoltage and overvoltage detection thresholds
  • Programmable threshold current sensing
  • Ampere-hours in no voltage signal
  • On-chip digital temperature sensor
  • An accurate internal reference voltage of 2.048V (30ppm/°C typical) is also supported with an external reference
  • Active electricity and energy for each stage and combined with 3 stages (kWh), positive and negative
  • Each stage and joint 3 phases look at power and energy
  • Supports software meter calibration
  • Up to 3 points of multi-point calibration sensor nonlinear compensation
  • Power failure detection
  • Bidirectional reset input/output
  • SPI-compatible serial interface (Acitve low IRQ) outputs interrupt requests
  • Single 3.3V Supply, Low Power (35MW Typical)

Application/Purpose

  • 3-phase active energy meter

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