MAXQ3180-KIT

MAXQ3180-KIT Datasheet

MAXQ3180

Part	Datasheet
MAXQ3180-KIT	MAXQ3180-KIT (pdf)

Related Parts	Information
MAXQ3180-RAN+T	MAXQ3180-RAN+T
MAXQ3180-RAN+	MAXQ3180-RAN+

PDF Datasheet Preview
MAXQ3180 Low-Power, Multifunction, Polyphase AFE 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. 3-Phase Multifunction Electricity Meters Ordering Information PART TEMP RANGE PIN-PACKAGE MAXQ3180-RAN+ -40°C to +85°C 28 TSSOP +Denotes a lead Pb -free/RoHS-compliant package. Pin Configuration and Typical Application Circuit appear at end of data sheet. Compatible with 3-Phase/3-Wire, 3-Phase/4-Wire, and Other 3-Phase Services Active Power and Energy of Each Phase and Combined 3-Phase kWh , Positive and Negative Reactive Power and Energy of Each Phase and Combined, Positive and Negative Apparent Power and Energy of Each Phase and Combined 3-Phase Neutral Line Current Measurement Line Frequency Hz Power Factors Voltage Phasor Angles Phase Sequence Indication Phase Voltage Absence Detection Voltage and Current Harmonic Measurement Fundamental and Total Power and Energy Two Pulse Outputs Configurable for Active, Reactive, and Apparent Powers Programmable Pulse Widths Programmable No-Load Current Threshold Programmable Meter Constants Programmable Thresholds for Undervoltage and Overvoltage Detection Programmable Threshold for Overcurrent Detection Amp-Hours in Absence of Voltage Signals On-Chip Digital Temperature Sensor Precision Internal Voltage Reference 2.048V 30ppm/°C typical , Also Supports An External Voltage Reference 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 MAXQ is a registered trademark of Maxim Integrated Products, Inc. SPI is a trademark of Motorola, Inc. Single 3.3V Supply, Low Power 35mW typical 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 MAXQ3180 Low-Power, Multifunction, Polyphase AFE TABLE OF CONTENTS Absolute Maximum Ratings Metering Specifications Electrical Characteristics SPI Slave Mode Timing Block Diagram Pin Description Detailed Description Analog Front-End Digital Signal Processor Precision Pulse Generators SPI Peripheral Operating Modes Run Mode Stop Mode Reset Sources External Reset Power-On Reset Watchdog Reset Software Reset Power-Supply Monitoring Clock Sources External High-Frequency Crystal External High-Frequency Clock Internal RC Oscillator Master Communications SPI Communications Rate and Format SPI Communications Protocol Host Software Design Register Set RAM-Based Registers General Operating Registers Global Status Register STATUS 0x000 Operating Mode Register 0 OPMODE0 0x001 Operating Mode Register 1 OPMODE1 0x002 Operating Mode Register 2 OPMODE2 0x003 MAXQ3180 Low-Power, Multifunction, Polyphase AFE TABLE OF CONTENTS continued Global Interrupt Registers Interrupt Request Flag Register IRQ_FLAG 0x004 Interrupt Mask Register IRQ_MASK 0x006 Meter Pulse Configuration Pulse Output PLSCFG1 0x01E Pulse Output PLSCFG2 0x01F CFP Pulse Width PLS1_WD 0x020 CFP Pulse Threshold THR1 0x022 CFQ Pulse Width PLS2_WD 0x026 CFQ Pulse Threshold THR2 0x028 Calibration Registers Current Gain, Phase X = A/B/C/N X.I_GAIN A 0x130, B 0x21C, C 0x308, N 0x12E Voltage Gain, Phase X = A/B/C X.V_GAIN A 0x132, B 0x21E, C 0x30A Energy Gain, Phase X = A/B/C X.E_GAIN A 0x134, B 0x220, C 0x30C Phase-Angle Compensation, High Range, Phase X = A/B/C X.PA0 A 0x13E, B 0x22A, C 0x316 Phase-Angle Compensation, Medium Range, Phase X = A/B/C X.PA1 A 0x140, B 0x22C, C 0x318 Phase-Angle Compensation, Low Range, Phase X = A/B/C X.PA2 A 0x142, B 0x22E, C 0x31A Limit Registers Overcurrent Level OCLVL 0x044 Overvoltage Level OVLVL 0x046 Undervoltage Level UVLVL 0x048 No-Load Level NOLOAD 0x04A Phase Status Registers Interrupt Flags, Phase X = A/B/C X.FLAGS A 0x144, B 0x230, C 0x31C Interrupt Mask, Phase X = A/B/C X.MASK A 0x145, B 0x231, C 0x31D Energy Overflow Flags, Phase X = A/B/C X.EOVER A 0x146, B 0x232, C 0x31E Measurements Line Frequency LINEFR 0x062 Power Factor, Phase X = A/B/C X.PF A 0x1C6, B 0x2B2, C 0x39E RMS Voltage, Phase X = A/B/C X.VRMS A 0x1C8, B 0x2B4, C 0x3A0 RMS Current, Phase X = A/B/C X.IRMS A 0x1CC, B 0x2B8, C 0x3A4 Energy, Real Positive, Phase X = A/B/C X.EAPOS A 0x1E8, B 0x2D4, C 0x3C0 Energy, Real Negative, Phase X = A/B/C X.EANEG A 0x1EC, B 0x2D8, C 0x3C4 Energy, Reactive Positive, Phase X = A/B/C X.ERPOS A 0x1F0, B 0x2DC, C 0x3C8 Energy, Reactive Negative, Phase X = A/B/C X.ERNEG A 0x1F4, B 0x2E0, C 0x3CC Energy, Apparent, Phase X = A/B/C X.ES A 0x1F8, B 0x2E4, C 0x3D0 MAXQ3180 Low-Power, Multifunction, Polyphase AFE TABLE OF CONTENTS continued Virtual Register Conversion Coefficients Voltage Units Conversion Coefficient VOLT_CC 0x014 Current Units Conversion Coefficient AMP_CC 0x016 Power Units Conversion Coefficient PWR_CC 0x018 Energy Units Conversion Coefficient ENR_CC 0x01A Virtual Registers Power Real Power, Phase X = A/B/C/T PWRP.X A 0x801, B 0x802, C 0x804, T 0x807 Reactive Power, Phase X = A/B/C/T PWRQ.X A 0x811, B 0x812, C 0x814, T 0x817 Apparent Power, Phase X = A/B/C/T PWRS.X A 0x821, B 0x822, C 0x824, T 0x827 Voltage and Current RMS Volts, Phase X = A/B/C V.X A 0x831, B 0x832, C 0x834 RMS Amps, Phase X = A/B/C/N I.X A 0x841, B 0x842, C 0x844, N 0x840 Power Factor Power Factor PF.T 0x867 Energy Real Energy, Phase A/B/C/T ENRP.X A 0x8C1, B 0x8C2, C 0x8C4, T 0x8C7 Reactive Energy, Phase A/B/C/T ENRQ.X A 0x8D1, B 0x8D2, C 0x8D4, T 0x8D7 Apparent Energy, Phase A/B/C/T ENRS.X A 0x871, B 0x872, C 0x874, T 0x877 Theory of Operation Analog Front-End Operation Digital Signal Processing DSP Terminology Digital Processing Per Sample Operations Per DSP Cycle Operations Energy Accumulation No-Zero-Crossing Detection Phase Sequence Status RMS Voltage, RMS Current, and Energy Calculation Power Calculation Active, Reactive, Apparent Energy Accumulation Start Delay No-Load Feature On Demand Calculations RMS Volts, RMS Amps Power Factor MAXQ3180 Low-Power, Multifunction, Polyphase AFE TABLE OF CONTENTS continued Line Frequency Phasor Angles Energy Meter Pulse Generating Pulses Meter Constant Interrupts Overvoltage and Overcurrent Detection Meter Units to Real Units Conversion Units Conversion Examples Calibration Procedure Calibration Overview Calibrating Voltage Calibrating Current Calibrating Phase Offset Interfacing the MAXQ3180 to External Hardware Connections to the Power Source Sensor Selection Voltage Sensors Voltage-Divider Voltage Transformer Current Sensors Current Shunt Current Transformer Advanced Operation Modifying the ADC Operation Fine-Tuning the DSP Controls Fine-Tuning the Line Frequency Measurement Fundamental Mode Registers Harmonic Measurement Low-Power Measurement Mode LOWPM Temperature Advanced Calibrations Calibrating Current Offset Calibrating Linearity Calibrating Power/Energy Gain Multipoint Phase Offset Calibration MAXQ3180 Low-Power, Multifunction, Polyphase AFE TABLE OF CONTENTS continued Advanced Register Configurations Analog Scan Configuration Registers Time Slot Channel X = A/B/C SCAN_IX A 0x008, B 0x00C, C 0x00A Time Slot Channel X = A/B/C SCAN_VX A 0x009, B 0x00D, C 0x00B Time Slot Current Channel SCAN_IN 0x00E Time Slot Channel SCAN_TE 0x00F Neutral Current and Harmonics Auxiliary Channel Configuration AUX_CFG 0x010 DSP System Configuration System Clock Frequency SYS_KHZ 0x012 Cycle Count CYCNT 0x01C Number of Scan Frames per DSP Cycle NS 0x040 Filter Coefficients Line Cycle Noise Rejection Filter REJ_NS 0x02C Line Cycle Averaging Filter AVG_NS 0x02E Meter Measurement Averaging Filter AVG_C 0x030 Meter Measurement Highpass Filter HPF_C 0x032 Fundamental Filter Feed-Forward Coefficient B0FUND 0x034 Fundamental Filter Feedback Coefficient A1FUND 0x036 Harmonic Filter Feed-Forward Coefficient B0HARM 0x03A Harmonic Filter Feedback Coefficient A1HARM 0x03C Zero-Cross Lowpass Filter ZC_LPF 0x05A Hardware Mirror Registers ADC Configuration R_ACFG 0x04C ADC Conversion Rate R_ADCRATE 0x04E ADC Settling Time R_ADCACQ 0x050 SPI Configuration R_SPICF 0x052 Timeouts Zero-Crossing Timeout NZX_TIMO 0x054 Communications Timeout COM_TIMO 0x056 Energy Accumulation Timeout ACC_TIMO 0x058 Phase-Angle Compensation Phase Offset Current Threshold 1 I1THR 0x05C Phase Offset Current Threshold 2 I2THR 0x05E Miscellaneous Gain Neutral Current Gain N.I_GAIN 0x12E Gain, Fundamental Energy, Phase X = A/B/C X.EF_GAIN A 0x136, B 0x222, C 0x30E MAXQ3180 Low-Power, Multifunction, Polyphase AFE TABLE OF CONTENTS continued Linearity Compensation Linearity Offset, High Range, Phase X = A/B/C X.OFFS_HI A 0x138, B 0x224, C 0x310 Linearity Gain Coefficient, Low Range, Phase X = A/B/C X.GAIN_LO A 0x13A, B 0x226, C 0x312 Linearity Offset, Low Range, Phase X = A/B/C X.OFFS_LO A 0x13C, B 0x228, C 0x314 Registers On-Demand RMS Result N.IRMS 0x11C Fundamental Energy Fundamental Energy Overflow Flags, Phase X = A/B/C X.EFOVER A 0x147, B 0x233, C 0x31F Energy, Fundamental, Real Positive, Phase X = A/B/C X.EAFPOS A 0x1FC, B 0x2E8, C 0x3D4 Energy, Fundamental, Real Negative, Phase X = A/B/C X.EAFNEG A 0x200, B 0x2EC, C 0x3D8 Energy, Fundamental, Reactive Positive, Phase X = A/B/C X.ERFPOS A 0x204, B 0x2F0, C 0x3DC Energy, Fundamental, Reactive Negative, Phase X = A/B/C X.ERFNEG A 0x208, B 0x2F4, C 0x3E0 Energy Fundamental, Apparent, Phase X = A/B/C X.ESF A 0x20C, B 0x2F8, C 0x3E4 Energy Accumulated in the Last DSP Cycle Real Energy, Phase X = A/B/C X.ACT A 0x1D0, B 0x2BC, C 0x3A8 Reactive Energy, Phase X = A/B/C X.REA A 0x1D4, B 0x2C0, C 0x3AC Apparent Energy, Phase X = A/B/C X.APP A 0x1D8, B 0x2C4, C 0x3B0 Fundamental Energy Accumulated in the Last DSP Cycle Fundamental Real Energy, Phase X = A/B/C X.ACTF A 0x1DC, B 0x2C8, C 0x3B4 Fundamental Reactive Energy, Phase X = A/B/C X.REAF A 0x1E0, B 0x2CC, C 0x3B8 Fundamental Apparent Energy, Phase X = A/B/C X.APPF A 0x1E4, B 0x2D0, C 0x3BC Checksum CHKSUM 0x060 Registers Fundamental Real Power, Phase A/B/C/T PWRPF.X A 0x881, B 0x882, C 0x884, T 0x887 Fundamental Reactive Power, Phase A/B/C/T PWRQF.X A 0x891, B 0x892, C 0x894, T 0x897 Fundamental Apparent Power, Phase A/B/C/T PWRSF.X A 0x8A1, B 0x8A2, C 0x8A4, T 0x8A7 Fundamental Real Energy, Phase A/B/C/T ENRPF.X A 0x8E1, B 0x8E2, C 0x8E4, T 0x8E7 Fundamental Reactive Energy, Phase A/B/C/T ENRQF.X A 0x8F1, B 0x8F2, C 0x8F4, T 0x8F7 Fundamental Apparent Energy, Phase A/B/C/T ENRSF.X A 0x8B1, B 0x8B2, C 0x8B4, T 0x8B7 Phasors Phase B Phasor VBPH 0x852 Phase C Phasor VCPH 0x854 Harmonics RMS Voltage, Harmonic V.HARM 0x830 RMS Current, Harmonic/Neutral I.N, I.HARM 0x840 Ratio of Harmonic/Fundamental HARM_NF 0x850 MAXQ3180 Low-Power, Multifunction, Polyphase AFE TABLE OF CONTENTS continued Special Commands Applications Information MAXQ3180

PDF Datasheet Preview

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

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.
3-Phase Multifunction Electricity Meters
Ordering Information

PART

TEMP RANGE

PIN-PACKAGE

MAXQ3180-RAN+ -40°C to +85°C
28 TSSOP
+Denotes a lead Pb -free/RoHS-compliant package.

Pin Configuration and Typical Application Circuit appear at end of data sheet.

Compatible with 3-Phase/3-Wire, 3-Phase/4-Wire, and Other 3-Phase Services

Active Power and Energy of Each Phase and Combined 3-Phase kWh , Positive and Negative

Reactive Power and Energy of Each Phase and Combined, Positive and Negative

Apparent Power and Energy of Each Phase and Combined 3-Phase

Neutral Line Current Measurement Line Frequency Hz Power Factors Voltage Phasor Angles Phase Sequence Indication Phase Voltage Absence Detection Voltage and Current Harmonic Measurement Fundamental and Total Power and Energy Two Pulse Outputs Configurable for Active,

Reactive, and Apparent Powers

Programmable Pulse Widths Programmable No-Load Current Threshold Programmable Meter Constants Programmable Thresholds for Undervoltage and

Overvoltage Detection

Programmable Threshold for Overcurrent Detection Amp-Hours in Absence of Voltage Signals On-Chip Digital Temperature Sensor Precision Internal Voltage Reference 2.048V
30ppm/°C typical , Also Supports An External Voltage Reference

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

MAXQ is a registered trademark of Maxim Integrated Products, Inc. SPI is a trademark of Motorola, Inc.

Single 3.3V Supply, Low Power 35mW typical

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

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

TABLE OF CONTENTS

Absolute Maximum Ratings Metering Specifications Electrical Characteristics SPI Slave Mode Timing Block Diagram Pin Description Detailed Description

Analog Front-End Digital Signal Processor Precision Pulse Generators SPI Peripheral Operating Modes

Run Mode Stop Mode Reset Sources External Reset Power-On Reset Watchdog Reset Software Reset Power-Supply Monitoring Clock Sources External High-Frequency Crystal External High-Frequency Clock Internal RC Oscillator Master Communications SPI Communications Rate and Format SPI Communications Protocol Host Software Design Register Set RAM-Based Registers General Operating Registers Global Status Register STATUS 0x000 Operating Mode Register 0 OPMODE0 0x001 Operating Mode Register 1 OPMODE1 0x002 Operating Mode Register 2 OPMODE2 0x003

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

TABLE OF CONTENTS continued

Global Interrupt Registers Interrupt Request Flag Register IRQ_FLAG 0x004 Interrupt Mask Register IRQ_MASK 0x006

Meter Pulse Configuration Pulse Output PLSCFG1 0x01E Pulse Output PLSCFG2 0x01F CFP Pulse Width PLS1_WD 0x020 CFP Pulse Threshold THR1 0x022 CFQ Pulse Width PLS2_WD 0x026 CFQ Pulse Threshold THR2 0x028

Calibration Registers Current Gain, Phase X = A/B/C/N X.I_GAIN A 0x130, B 0x21C, C 0x308, N 0x12E Voltage Gain, Phase X = A/B/C X.V_GAIN A 0x132, B 0x21E, C 0x30A Energy Gain, Phase X = A/B/C X.E_GAIN A 0x134, B 0x220, C 0x30C Phase-Angle Compensation, High Range, Phase X = A/B/C X.PA0 A 0x13E, B 0x22A, C 0x316 Phase-Angle Compensation, Medium Range, Phase X = A/B/C X.PA1 A 0x140, B 0x22C, C 0x318 Phase-Angle Compensation, Low Range, Phase X = A/B/C X.PA2 A 0x142, B 0x22E, C 0x31A

Limit Registers Overcurrent Level OCLVL 0x044 Overvoltage Level OVLVL 0x046 Undervoltage Level UVLVL 0x048 No-Load Level NOLOAD 0x04A

Phase Status Registers Interrupt Flags, Phase X = A/B/C X.FLAGS A 0x144, B 0x230, C 0x31C Interrupt Mask, Phase X = A/B/C X.MASK A 0x145, B 0x231, C 0x31D Energy Overflow Flags, Phase X = A/B/C X.EOVER A 0x146, B 0x232, C 0x31E

Measurements Line Frequency LINEFR 0x062 Power Factor, Phase X = A/B/C X.PF A 0x1C6, B 0x2B2, C 0x39E RMS Voltage, Phase X = A/B/C X.VRMS A 0x1C8, B 0x2B4, C 0x3A0 RMS Current, Phase X = A/B/C X.IRMS A 0x1CC, B 0x2B8, C 0x3A4 Energy, Real Positive, Phase X = A/B/C X.EAPOS A 0x1E8, B 0x2D4, C 0x3C0 Energy, Real Negative, Phase X = A/B/C X.EANEG A 0x1EC, B 0x2D8, C 0x3C4 Energy, Reactive Positive, Phase X = A/B/C X.ERPOS A 0x1F0, B 0x2DC, C 0x3C8 Energy, Reactive Negative, Phase X = A/B/C X.ERNEG A 0x1F4, B 0x2E0, C 0x3CC Energy, Apparent, Phase X = A/B/C X.ES A 0x1F8, B 0x2E4, C 0x3D0

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

TABLE OF CONTENTS continued

Virtual Register Conversion Coefficients Voltage Units Conversion Coefficient VOLT_CC 0x014 Current Units Conversion Coefficient AMP_CC 0x016 Power Units Conversion Coefficient PWR_CC 0x018 Energy Units Conversion Coefficient ENR_CC 0x01A

Virtual Registers Power Real Power, Phase X = A/B/C/T PWRP.X A 0x801, B 0x802, C 0x804, T 0x807 Reactive Power, Phase X = A/B/C/T PWRQ.X A 0x811, B 0x812, C 0x814, T 0x817 Apparent Power, Phase X = A/B/C/T PWRS.X A 0x821, B 0x822, C 0x824, T 0x827 Voltage and Current RMS Volts, Phase X = A/B/C V.X A 0x831, B 0x832, C 0x834 RMS Amps, Phase X = A/B/C/N I.X A 0x841, B 0x842, C 0x844, N 0x840 Power Factor Power Factor PF.T 0x867 Energy Real Energy, Phase A/B/C/T ENRP.X A 0x8C1, B 0x8C2, C 0x8C4, T 0x8C7 Reactive Energy, Phase A/B/C/T ENRQ.X A 0x8D1, B 0x8D2, C 0x8D4, T 0x8D7 Apparent Energy, Phase A/B/C/T ENRS.X A 0x871, B 0x872, C 0x874, T 0x877

Theory of Operation Analog Front-End Operation Digital Signal Processing DSP Terminology Digital Processing Per Sample Operations Per DSP Cycle Operations Energy Accumulation No-Zero-Crossing Detection Phase Sequence Status RMS Voltage, RMS Current, and Energy Calculation Power Calculation Active, Reactive, Apparent Energy Accumulation Start Delay No-Load Feature On Demand Calculations RMS Volts, RMS Amps Power Factor

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

TABLE OF CONTENTS continued

Line Frequency Phasor Angles Energy Meter Pulse Generating Pulses Meter Constant Interrupts Overvoltage and Overcurrent Detection Meter Units to Real Units Conversion Units Conversion Examples Calibration Procedure Calibration Overview Calibrating Voltage Calibrating Current Calibrating Phase Offset Interfacing the MAXQ3180 to External Hardware Connections to the Power Source Sensor Selection Voltage Sensors Voltage-Divider Voltage Transformer Current Sensors Current Shunt Current Transformer Advanced Operation Modifying the ADC Operation Fine-Tuning the DSP Controls Fine-Tuning the Line Frequency Measurement Fundamental Mode Registers Harmonic Measurement Low-Power Measurement Mode LOWPM Temperature Advanced Calibrations Calibrating Current Offset Calibrating Linearity Calibrating Power/Energy Gain Multipoint Phase Offset Calibration

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

TABLE OF CONTENTS continued

Advanced Register Configurations Analog Scan Configuration Registers Time Slot Channel X = A/B/C SCAN_IX A 0x008, B 0x00C, C 0x00A Time Slot Channel X = A/B/C SCAN_VX A 0x009, B 0x00D, C 0x00B Time Slot Current Channel SCAN_IN 0x00E Time Slot Channel SCAN_TE 0x00F Neutral Current and Harmonics Auxiliary Channel Configuration AUX_CFG 0x010 DSP System Configuration System Clock Frequency SYS_KHZ 0x012 Cycle Count CYCNT 0x01C Number of Scan Frames per DSP Cycle NS 0x040 Filter Coefficients Line Cycle Noise Rejection Filter REJ_NS 0x02C Line Cycle Averaging Filter AVG_NS 0x02E Meter Measurement Averaging Filter AVG_C 0x030 Meter Measurement Highpass Filter HPF_C 0x032 Fundamental Filter Feed-Forward Coefficient B0FUND 0x034 Fundamental Filter Feedback Coefficient A1FUND 0x036 Harmonic Filter Feed-Forward Coefficient B0HARM 0x03A Harmonic Filter Feedback Coefficient A1HARM 0x03C Zero-Cross Lowpass Filter ZC_LPF 0x05A Hardware Mirror Registers ADC Configuration R_ACFG 0x04C ADC Conversion Rate R_ADCRATE 0x04E ADC Settling Time R_ADCACQ 0x050 SPI Configuration R_SPICF 0x052 Timeouts Zero-Crossing Timeout NZX_TIMO 0x054 Communications Timeout COM_TIMO 0x056 Energy Accumulation Timeout ACC_TIMO 0x058 Phase-Angle Compensation Phase Offset Current Threshold 1 I1THR 0x05C Phase Offset Current Threshold 2 I2THR 0x05E Miscellaneous Gain Neutral Current Gain N.I_GAIN 0x12E Gain, Fundamental Energy, Phase X = A/B/C X.EF_GAIN A 0x136, B 0x222, C 0x30E

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

TABLE OF CONTENTS continued

Linearity Compensation Linearity Offset, High Range, Phase X = A/B/C X.OFFS_HI A 0x138, B 0x224, C 0x310 Linearity Gain Coefficient, Low Range, Phase X = A/B/C X.GAIN_LO A 0x13A, B 0x226, C 0x312 Linearity Offset, Low Range, Phase X = A/B/C X.OFFS_LO A 0x13C, B 0x228, C 0x314

Registers On-Demand RMS Result N.IRMS 0x11C Fundamental Energy Fundamental Energy Overflow Flags, Phase X = A/B/C X.EFOVER A 0x147, B 0x233, C 0x31F Energy, Fundamental, Real Positive, Phase X = A/B/C X.EAFPOS A 0x1FC, B 0x2E8, C 0x3D4 Energy, Fundamental, Real Negative, Phase X = A/B/C X.EAFNEG A 0x200, B 0x2EC, C 0x3D8 Energy, Fundamental, Reactive Positive, Phase X = A/B/C X.ERFPOS A 0x204, B 0x2F0, C 0x3DC Energy, Fundamental, Reactive Negative, Phase X = A/B/C X.ERFNEG A 0x208, B 0x2F4, C 0x3E0 Energy Fundamental, Apparent, Phase X = A/B/C X.ESF A 0x20C, B 0x2F8, C 0x3E4 Energy Accumulated in the Last DSP Cycle Real Energy, Phase X = A/B/C X.ACT A 0x1D0, B 0x2BC, C 0x3A8 Reactive Energy, Phase X = A/B/C X.REA A 0x1D4, B 0x2C0, C 0x3AC Apparent Energy, Phase X = A/B/C X.APP A 0x1D8, B 0x2C4, C 0x3B0 Fundamental Energy Accumulated in the Last DSP Cycle Fundamental Real Energy, Phase X = A/B/C X.ACTF A 0x1DC, B 0x2C8, C 0x3B4 Fundamental Reactive Energy, Phase X = A/B/C X.REAF A 0x1E0, B 0x2CC, C 0x3B8 Fundamental Apparent Energy, Phase X = A/B/C X.APPF A 0x1E4, B 0x2D0, C 0x3BC Checksum CHKSUM 0x060

Registers Fundamental Real Power, Phase A/B/C/T PWRPF.X A 0x881, B 0x882, C 0x884, T 0x887 Fundamental Reactive Power, Phase A/B/C/T PWRQF.X A 0x891, B 0x892, C 0x894, T 0x897 Fundamental Apparent Power, Phase A/B/C/T PWRSF.X A 0x8A1, B 0x8A2, C 0x8A4, T 0x8A7 Fundamental Real Energy, Phase A/B/C/T ENRPF.X A 0x8E1, B 0x8E2, C 0x8E4, T 0x8E7 Fundamental Reactive Energy, Phase A/B/C/T ENRQF.X A 0x8F1, B 0x8F2, C 0x8F4, T 0x8F7 Fundamental Apparent Energy, Phase A/B/C/T ENRSF.X A 0x8B1, B 0x8B2, C 0x8B4, T 0x8B7 Phasors Phase B Phasor VBPH 0x852 Phase C Phasor VCPH 0x854 Harmonics RMS Voltage, Harmonic V.HARM 0x830 RMS Current, Harmonic/Neutral I.N, I.HARM 0x840 Ratio of Harmonic/Fundamental HARM_NF 0x850

MAXQ3180

Low-Power, Multifunction, Polyphase AFE

TABLE OF CONTENTS continued

Special Commands Applications Information

MAXQ3180

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Datasheet ID: MAXQ3180-KIT 647458