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MAXQ3180 Dataheets PDF



Part Number MAXQ3180
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Polyphase AFE
Datasheet MAXQ3180 DatasheetMAXQ3180 Datasheet (PDF)

Rev 0; 2/08 www.DataSheet4U.com Low-Power, Multifunction, Polyphase AFE General Description The MAXQ3180 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load. The computed results can be retrieved by an external master through the on-chip serial peripheral interface (SPI™) bus. This bus is also used by the external master to configure the operation of the.

  MAXQ3180   MAXQ3180


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Rev 0; 2/08 www.DataSheet4U.com Low-Power, Multifunction, Polyphase AFE General Description The MAXQ3180 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, power, energy, and many other metering and power-quality parameters of a polyphase load. The computed results can be retrieved by an external master through the on-chip serial peripheral interface (SPI™) bus. This bus is also used by the external master to configure the operation of the MAXQ3180 and monitor the status of operations. The MAXQ3180 performs voltage and current measurements using an integrated ADC that can measure up to seven external differential signal pairs. An eighth differential signal pair is used to measure the die temperature. An internal amplifier automatically adjusts the current channel gain to compensate for low-current channel-signal levels. ♦ On-Chip User-Programmable Thresholds for Line Voltage Undervoltage and Overvoltage Detection ♦ On-Chip Digital Integrator Enables Direct Interface-to-Current Sensors with di/dt Output ♦ On-Chip Digital Temperature Sensor ♦ Precision Internal Voltage Reference 2.048V (30ppm/°C Typical); Also Supports an External Voltage Reference Input ♦ Active Energy of Each Phase and Combined 3-Phase (kWh), Positive and Negative ♦ Active Power of Each Phase and Combined 3-Phase (kW) ♦ Reactive Energy of Each Phase and Combined 3-Phase (kVarh), Quadrants 1 to 4 ♦ Reactive Power of Each Phase and Combined 3-Phase (kVar) ♦ Apparent Energy of Each Phase and Combined 3-Phase (kVAh) ♦ Apparent Power of Each Phase and Combined 3-Phase (kVA) ♦ Line Frequency (Hz) ♦ Power Factor ♦ Overcurrent and Overvoltage Detection ♦ Voltage Sag Detection ♦ RMS Current and RMS Voltage ♦ Line-Cycle-Wise Instant Current, Voltage, and Power ♦ Phase Sequence Error Detection ♦ Phase Voltage Absence Detection ♦ Supports Software Meter Calibration ♦ Up to 3-Point Multipoint Calibration to Compensate for Transducer Nonlinearity ♦ Power-Fail Detection ♦ Bidirectional Reset Input/Output ♦ SPI-Compatible Serial Interface with Interrupt Request (IRQ) Output ♦ Single 3.3V Supply, Low Power (10mW Typical) ♦ 28-Pin TSSOP Package MAXQ3180 Applications 3-Phase Multifunction Electricity Meters Remote Terminal Unit (RTU) Applications for Electric Load Management Features ♦ Supports IEC 60687, IEC 61036, and IEC 61268 Standards ♦ Compatible with 3-Phase/3-Wire, 3-Phase/4-Wire, and Other 3-Phase Services ♦ Calculates Active/Reactive/Apparent Energy, RMS Voltage, RMS Current, Voltage Phasor Angle, and Line Frequency ♦ Less Than 0.1% Active Energy Error Over a Dynamic Range of 1000:1 at +25°C ♦ Less Than 0.2% Reactive Energy Error Over a Dynamic Range of 1000:1 at +25°C ♦ Better Than 0.5% Accuracy for RMS Voltage and RMS Current ♦ Two Pulse Outputs: One for Active Power and One Selectable Between Reactive and Apparent Power ♦ Programmable Pulse Width ♦ Programmable Startup Current Threshold ♦ Programmable Meter Constant ♦ Up to 21st Harmonic Measurement ♦ Neutral Line Current Measurement ♦ Calculates Amp-Hours in the Absence of Voltage Signals MAXQ is a registered trademark of Maxim Integrated Products, Inc. SPI is a trademark of Motorola, Inc. Ordering Information PART MAXQ3180-RAN+ TEMP RANGE -40°C to +85°C PINPACKAGE 28 TSSOP +Denotes a Pb-free/RoHS-compliant package. Pin Configuration and Typical Application Circuit appear at end of data sheet. Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, go to: www.maxim-ic.com/errata. ________________________________________________________________ Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. www.DataSheet4U.com Low-Power, Multifunction, Polyphase AFE MAXQ3180 ABSOLUTE MAXIMUM RATINGS Voltage Range on DVDD Relative to DGND .........-0.3V to +4.0V Voltage Range on AVDD Relative to AGND..........-0.3V to +4.0V Voltage Range on AGND Relative to DGND ..........0.3V to +0.3V Voltage Range on AVDD Relative to DVDD ..........-0.3V to +0.3V Voltage Range on Any Pin Relative to GND or AGND ...................................................-0.3V to +4.0V Operating Temperature Range ...........................-40°C to +85°C Junction Temperature ......................................................+150°C Storage Temperature Range .............................-65°C to +150°C Lead Soldering Temperature .............................Refer to the IPC/ JEDEC J-STD-020 Specification. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of t.


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