1 Three-Phase Energy Metering IC
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Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Selection Guide of HiTrendtech Energy Metering IC V0.3 Table of Contents 1 2 3 Three-Phase Energy Metering IC ................................................................................................................ 2 Single-Phase Energy Metering IC ............................................................................................................. 11 Single-Phase SOC ...................................................................................................................................... 15 Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page1 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） 1 Three-Phase Energy Metering IC Functions Three-Phase Multifunctional Three-Phase Three-Phase Active/Reactive Active Multi-rates Multi-rates Three-Phase Active ATT7022E ATT7022C ATT7022D ATT7026E ATT7026C ATT7028C ATT7030C 3.3V 5V 5V 3.3V 5V 5V 5V -40℃～85℃ -40℃～85℃ -40℃～85℃ -40℃～85℃ -40℃～85℃ -40℃～85℃ -40℃～85℃ Clock Freq( Crystal) 5.5296MHz 24.567MHz 24.567MHz 5.5296MHz 24.567MHz 24.567MHz 24.567MHz Dynamic Range 3000：1 1000：1 1000：1 3000：1 1000：1 1000：1 1000：1 6.5mA 25mA 25mA 6mA 25mA 25mA 25mA 2.4V(30ppm) 2.4V(30ppm) 2.4V(30ppm) Coefficient) 1.2V(20ppm) 2.4V(30ppm) 2.4V(30ppm) 1.2V(20ppm) ADC Bits 19bit 16bit 19bit 19bit 16bit 16bit 16bit 28kHz~0.9kHz 3.2kHz 3.2kHz 28kHz~0.9kHz 3.2kHz 3.2kHz 3.2kHz × × × × × Supply Voltage Operating Temperature Normal Power Consumption Vref(Temperature Waveform Sampling Frequency Both Current and Voltage Synchronous Waveform Sampling Function √ × Buffer (bytes) 1024 240 240 × 240 240 × ADC Channels 7 7 7 6 6 6 6 N-Line Current √ √ √ × × × × Waveform Sampling Measurement Communication Interface × SPI 4 Lines SPI 4 Lines SPI 4 Lines SPI 4 Lines SPI 4 Lines SPI 4 Lines SPI Communication × Rate <=10Mbps <=2Mbps <=2Mbps <=10Mbps <=2Mbps <=2Mbps Active Power/Energy √ √ √ √ √ √ √ Reactive √ √ √ √ √ × × √ √ √ √ 仅功率 Power/Energy Apparent Power/Energy × × URms/IRms √ √ √ √ √ √ × Power Factor √ √ √ √ √ √ × Phase √ √ √ √ √ √ × Phase to Phase Angle × (Precision) 0.1° 5° 0.3° 0.1° × × Voltage Line 0.01Hz 0.05Hz 0.05HZ 0.01Hz 0.05Hz 0.05Hz Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page2 of 22 Rev0.3 × Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Frequency(Precision) Voltage Depreciation √ √ √ √ √ √ Detecting Voltage Phase √ √ √ √ √ √ √ × Sequence Detecting Current Phase × Sequence Detecting √ Only 3P4W Only 3P4W √ Only 3P4W Only 3P4W Three Phase Combined √ √ √ √ √ √ Only Power Direction Algebra Indication Mode One Phase Power √ √ √ √ √ √ Direction Indication Three Phase Combined √ √ √ √ √ √ √ × √ √ √ √ √ √ × √ √ √ √ √ √ Voltage RMS（URms） Three Phase Combined Current RMS（IRms） Energy Accumulation Mode Selectable √ Parameter’s Register Update Rate 1.8Hz~28.8Hz 3Hz 3Hz 1.8Hz~28.8Hz 3Hz 3Hz 3Hz Fundamental Wave √ √ √ × × × × × √ √ × × × × × √ √ × × × × 41 次 21 次 21 次 41 次 21 次 21 次 21 次 × × × × × √ √ √ Active Energy Metering Fundamental Wave Reactive Energy Metering Total Harmonic Energy Metering Sub-harmonic Precision ROSI Coil Mode Selection √ Counter Function × √ × × Select × Software Software Software Software Software Software /Hardware /Hardware Hardware Angle Calibration 2 5 5 2 5 5 1 Fast Pulse Register √ × √ √ × × × P-offset Register √ × √ √ × × × RMS-offset Register √ × × √ × × × Consumption 4mA 25mA 25mA 4mA 25mA 25mA × Temperature Sensor √ √ √ √ × × × Calibration Method Sections in Phase No-voltage Power Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page3 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Package LQFP44 QFP44 QFP44 LQFP44 QFP44 QFP44 ATT7022E Block Diagram： CLKIN ADC DEC filter PGA ADC DEC filter PGA ADC DEC filter PGA ADC PGA V1P V1N PGA V0P V0N ADC CLKOUT Clock Generator AVCC LVREF AGND Power Monitor Unit VDD1P8 DVCC DGND TEST V2P V2N V3P V3N V4P V4N CF1 CF 2 CF3 CF4 Pulse output DEC filter SDO SDI EMU SCLK CS DEC filter Reset V6P V6N Vref ADC DEC filter PGA V5N PGA V5P ADC DEC filter Voltage Reference Temperature sensor Register General Interface SEL IRQ ADC REVP Introduction： ATT7022E is a multi-function and high-precision 3-phase energy metering IC, which is suitable for 3-phase 3-wire and 3-phase 4-wire. ATT7022E incorporates 7 second-order sigma-delta ADC, reference circuitry and all signal processing required calculating power, energy, RMS data, power factor and frequency. It is suitable for measuring active power, reactive power, apparent power, active energy and reactive energy for each phase and 3 phase combined; it is also suitable for measuring current RMS, voltage RMS, power factor, phase and frequency. It’s qualified for 3-phase multi-functional and multi-rates energy meter. For detail definition, please refer to the sections of parameter and register. ATT7022E supports software calibration for gain, phase. Two pulses for active and reactive power (CF1, CF2) can be used directly to calibrate error. Refer to related section for detailed calibration method. ATT7022E provides two kinds of apparent energy output: RMS apparent energy and PQS apparent energy. CF3 could be used as apparent energy pulse output. ATT7022E provides fundamental wave measurement: fundamental wave active power, fundamental wave active energy, fundamental wave current, voltage RMS. CF4 could be used as instantaneous fundamental wave output for calibration. ATT7022E provides SPI port to transfer data to and from host MCU for all measuring result and calibration data. Refer to related sections for detailed SPI reading and writing method. ATT7022E has power supply monitor circuitry to guarantee performance when power on and off. Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page4 of 22 Rev0.3 QFP44 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） ATT7022C Block Diagram： Introduction： ATT7022C is a high-precision 3-phase energy metering IC, which is suitable for 3-phase 3-wire and 3-phase 4-wire. ATT7022C incorporates 7 second-order sigma-delta ADC, reference circuitry and all signal processing required calculating power, energy, RMS data, power factor and frequency. It is suitable for measuring active power, reactive power, apparent power, active energy and reactive energy for each phase and 3 phase combined; it is also suitable for measuring current RMS, voltage RMS, power factor, phase and frequency. It’s qualified for 3-phase multi-functional and multi-rates energy meter. ATT7022C supports software calibration for gain, phase. Two pulses for active and reactive power (CF1, CF2) can be used directly to calibrate error. ATT7022C provides fundamental wave measurement: fundamental wave active power, fundamental wave reactive power. CF3 and CF4 could be used as instantaneous fundamental wave active power output and instantaneous fundamental wave reactive power output for calibration. ATT7022C provides two kinds of apparent energy output: RMS apparent energy and PQS apparent energy. CF3 and CF4 could be used as apparent energy pulse output. ADC sampling data cache is available. There’s no need to read data immediately in interrupt. Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page5 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） ATT7022C provides SPI port to transfer data to and from host MCU for all measuring result and calibration data. All of measurement parameters can be read via SPI port. ATT7022C has power supply monitor circuitry to guarantee performance when power on and off. ATT7022D Block Diagram：The same as ATT7022C Introduction： Pin assignment of ATT7022D is compatible with ATT7022C, also is the software. ATT7022D can output all the metering parameters, and MCU just need to process the communication and manage the multi-function meter. ATT7022D provide a solution for multi-function 3-phase energy meter with most functions and simplest design, which can guarantee the precision and reliability because of the internal DSP calculating parameter directly. ATT7026C Block Diagram： Introduction： ATT7026C is a high-precision 3-phase energy metering IC, which is suitable for 3-phase 3-wire and 3-phase 4-wire. Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page6 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） ATT7026C incorporates 6 second-order sigma-delta ADC, reference circuitry and all signal processing required calculating power, energy, RMS data, power factor and frequency. It is suitable for measuring active power, reactive power, apparent power, active energy and reactive energy for each phase and 3 phase combined; it is also suitable for measuring current RMS, voltage RMS, power factor, phase and frequency. It’s qualified for 3-phase multi-functional and multi-rates energy meter. ATT7026C supports software calibration and resistance-network calibration. Resistance-network calibration is used when voltage channel is sampled via resistance-network, it can calibrate system error to match the demand of 1S-class meter. Software calibration can calibrate system error to match the demand of 0.5S-class meter via related calibration register. Two pulses for active and reactive power (CF1, CF2) can be used directly to calibrate error. ADC sampling data cache is available. There’s no need to read data immediately in interrupt. ATT7026C provides SPI port to transfer data to and from host MCU for all measuring result and calibration data. All of measurement parameters can be read via SPI port. ATT7026C has power supply monitor circuitry to guarantee performance when power on and off. ATT7026C can drive bi-direction counter to display active energy and reactive energy via pulse. It provides the most simple solution for3-phase energy meter. ATT7026C can also provide the most valuable multi-rates energy meter incorporated with MCU. ATT7026E Block Diagram： CLKIN CLKOUT Clock Generator AVCC LVREF AGND Power Monitor Unit VDD1P8 DVCC PGA ADC DEC filter PGA ADC DEC filter PGA V1P V1N ADC DGND TEST V2P V2N V3P V3N DEC filter SDO SDI EMU PGA V4P V4N CF1 CF2 CF3 CF4 Pulse output SCLK CS DEC filter ADC Reset V6P V6N Vref ADC PGA V5N PGA V5P ADC Voltage Reference DEC filter Register General Interface SEL IRQ DEC filter Temperature sensor ADC REVP Introduction： ATT7026E is a multi-function and high-precision 3-phase energy metering IC, which is suitable for 3-phase 3-wire and 3-phase 4-wire. ATT7026E incorporates 6 second-order sigma-delta ADC, reference circuitry and all signal processing Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page7 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） required calculating power, energy, RMS data, power factor and frequency. It is suitable for measuring active power, reactive power, apparent power, active energy and reactive energy for each phase and 3 phase combined; it is also suitable for measuring current RMS, voltage RMS, power factor, phase and frequency. It’s qualified for 3-phase multi-functional and multi-rates energy meter. For detail definition, please refer to the sections of parameter and register. ATT7026E supports software calibration for gain, phase. Two pulses for active and reactive power (CF1, CF2) can be used directly to calibrate error. Refer to related section for detailed calibration method. ATT7026E provides two kinds of apparent energy output: RMS apparent energy and PQS apparent energy. CF3 could be used as apparent energy pulse output. ATT7026E provides SPI port to transfer data to and from host MCU for all measuring result and calibration data. ATT7026E has power supply monitor circuitry to guarantee performance when power on and off. ATT 7028C Block Diagram： Introduction： ATT7028C is a high-precision 3-phase energy metering IC, which is suitable for 3-phase 3-wire and 3-phase 4-wire. ATT7028C incorporates 6 second-order sigma-delta ADC, reference circuitry and all signal processing required calculating power, energy, RMS data, power factor and frequency. Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page8 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） ATT7028C is suitable for measuring active power, reactive power, apparent power, active energy and reactive energy for each phase and 3 phase combined; it is also suitable for measuring current RMS, voltage RMS, power factor, phase and frequency. It’s qualified for 3-phase multi-functional and multi-rates energy meter. ATT7028C supports software calibration and resistance-network calibration. Resistance-network calibration is used when voltage channel is sampled via resistance-network, it can calibrate system error to match the demand of 1S-class meter. Software calibration can calibrate system error to match the demand of 0.5S-class meter via related calibration register. CF1 pulses for active power can be used directly to calibrate error. ADC sampling data cache is available. There’s no need to read data immediately in interrupt. ATT7028C provides SPI port to transfer data to and from host MCU for all measuring result and calibration data. ATT7028C has power supply monitor circuitry to guarantee performance when power on and off. ATT7028C can drive counter to display active energy via pulse. It provides a solution for multi-rates 3-phase active energy meter. ATT7030C Block Diagram： Introduction： Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page9 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） ATT7030C is a high-precision 3-phase energy metering IC, which is suitable for 3-phase 3-wire and 3-phase 4-wire. ATT7030C incorporates 6 second-order sigma-delta ADC, reference circuitry and all signal processing required. ATT7030C can measure active power, and provide indication of phase loss, power inverted, and combined power negative. It can drive counter via pulse output. ATT7030C supports resistance-network calibration. It can calibrate system error to match the demand of 1S-class meter. CF1 pulses for active power can be used directly to calibrate error. ATT7030C has power supply monitor circuitry to guarantee performance when power on and off. When the sample voltage of current channel is 100mv with rated current (Ib) inputting, ATT7030C can be startup above 0.12%Ib and be no-load under 0.08%Ib with startup value setting as 0.1% (0.09% in ATT7030A). Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page10 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） 2 Single-Phase Energy Metering IC Single-Phase Multifunctional Functions Single-Phase Electronic ATT7053AU ATT7053BU ATT7021 Supply Voltage 3.0V~3.6V 4.5V~5.5V 4.75V~5.25V Operating Temperature -40℃～85℃ -40℃～85℃ -40℃～85℃ Clock Freq( Crystal) 5.5296MHz 6MHz 3.579545MHz Package SSOP24 SSOP24 SSOP24 Normal Power Consumption 3mA（3ADC） 3mA（3ADC） 3.3mA Vref(Temperature Coefficient) 1.225V(25ppm/℃) 2.5V(25ppm/℃) 2.5V(25ppm/℃) Sleep Mode × × × Internal Temperature Sensor(TPS) √ × × BOR Threshold √ × × SPI Communication √（4 Lines） √（3or4 Lines） × Dynamic Range 2000：1 3000;1 500:1 ADC Channels 3 3 2 ADC bit 19 19 16 Waveform Sampling Frequency 28K/14K/7K Hz 31K/15.6K Hz × Waveform Sampled Data Buffer √ √ × Maximum Signal Level (Analog Input) +-800mVp +-800mVp +-470mVp CF Pins 3 2 1 CF Pin Setup √ QF/SF × Active Energy Measurement √ √ √ Measurement √ √ × URms/IRms √ √ × Active, Reactive and Apparent Power √ √ × Channels Supplied Simultaneously √ √ × P_offset/RMS_offset Calibration √ √ × Voltage √ × × Voltage Line Frequency Measure √ √ × Analog Gain of Current Channel 1/2/8/16 1/2/8/16/24 1/2/8/16 Analog Gain of Voltage Channel 1/2/8/16 1/2/4 × Digital Gain of Current Channel 1/2/4/8 1/2/4/8 × Digital Gain of Voltage Channel 1/2/4/8 1/2/4/8 × and Current Channel √ √ × Wave Sampling Update Interrupt √ √ × Reactive and Apparent Energy Active and Reactive Power of Two Phase Angle between Current and Zero-Crossing Interrupt of Voltage Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page11 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Energy Pulse Output √ √ × No-Load Detection √ √ √ Anti-Tamper/Tamper Interrupt √ √ × Anti-Tamper in Loss of Voltage √(1.7mA) × × Rogowski Coil Select √ √ × DC Measurement √ √ × Counter Driver Select × × √ Insert High-Pass Filter Turn Off & ATT7053AU Block Diagram： Introduction： ATT7053AU is a multi-function single-phase energy measurement chip with SPI. Its voltage should be supplied between 3.0V and 3.6V. The crystal oscillator is 5.5296MHz. Its current could be supplied less than 4.5 mA in normal mode, and less than 2mA in voltage-depreciation mode. ATT7053AU can output all the metering parameters, and MCU just need to process the communication and manage the multi-function meter. It can guarantee the precision and reliability because of the internal DSP calculating parameter directly. ATT7053AU provides a simplest solution with most functions for single-phase energy meter. ATT7053BU Block Diagram： Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page12 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Introduction： ATT7053BU is a multi-function single-phase energy measurement chip with SPI. Its voltage should be supplied between 4.5V and 5.5V. The crystal oscillator is 6MHz. Its current could be supplied less than 3 mA in normal mode. ATT7053BU can output all the metering parameters, and MCU just need to process the communication and manage the multi-function meter. It can guarantee the precision and reliability because of the internal DSP calculating parameter directly. ATT7053BU provides a simplest solution with most functions for single-phase energy meter. ATT7021B/C Block Diagram： Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page13 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Introduction： ATT7021B/C is a kernel chip of electronic energy meter. The electronic energy meter which used ATT7021B/C can be simple in circuit designing, and also has high performance of reliability, linearity and stability. It is suitable for single-phase 2-wire and single-phase 3-wire. ATT7021B/C is a high precision integrated circuit, whose technical indication is higher than GB/T 17215(equivalent to IEC1036). It used digital circuit in all processing except ADC and reference, which guarantee a high precision and stability in awful environment. Pin F1 and pin F2 output mean active power in low frequency to drive counter or communicate with MCU. Pin CF outputs instantaneous active power to calibrate error or communicate with MCU. ATT7021B/C is an upgrade edition of ATT7021 with .35um manufacture, lower consumption and better stability. The pin assignment of ATT7021B/C is compatible with ATT7021 and ADE7755. Compared to ATT7021, ATT7021B/C is better in follows： 1. Lower Consumption. The typical consumption of ATT7021B is 3.3 mA. 2. Consistency of VREF is better, including middle value and temperature coefficient. Typical: 25ppm. Maximum: 50ppm. 3. Maximum signal voltage enhanced from 470mV to 660mV. The difference between ATT7021B and ATT7021C： B costs more in testing when producing, and its quality is better. Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page14 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） 3 Single-Phase SOC Single-Phase Multi-Functional Functions Active/Reactive Measurement SOC Single-Phase Active Measurement SOC ATT7035 ATT7037 ATT7039（Old） ATT7039BU（New） Package LQFP100 LQFP64 LQFP48 LQFP48 Operation Temperature -40℃～85℃ -40℃～85℃ -40℃～85℃ -40℃～85℃ GPIO Pins 69 38 24 24 Supply Voltage 3.3V 3.3V 3.3V 3.3V Clock Freq (Crystal) 32.768KHz 32.768KHz 32.768KHz 32.768KHz Frequency √(5.5MHz,11MHz) √(5.5MHz,11MHz) √(5.5MHz,11MHz) √(5.5MHz,11MHz) Normal Power Consumption 5.5mA（3ADC） 5.5mA（3ADC） 4.8mA 4.8mA 15uA 15uA 15uA 15uA System Clock(CLKOUT) √ √ × × 8051 CYCLE 1 1 1 1 JTAG Simulate √ √ √ √ FLASH（PM/DM） 64K(60K+4K) 64K(60K+4K) 36K(32K+4K) 32K(28K+4K) XRAM 4K 4K 2K 1K XRAM Data Saved when Power Fail 256byte 256byte 256byte 256byte Memory Map Mode 1:XRAM Map as PM √ √ × × √ √ √ √ External Pin √ √ √ √ Driving LED IO √(P0) √(P0) √(P0) √(P0) BOR/LBOR √ √ √ √ （VBAT） √ √ × × VSYS/VBAT Auto-Switch √ √ √ √ HOLD Mode/SlEEP Mode √ √ √ Only SLEEP Mode Interruptions of Waken Reset 9 9 7 7 External Interruptions 2 2 1 1 Timers 3 3 3 3 38K-Modulator) 3 2 2 2 Keys 4 2 2 2 LCD Driver(COM*SEG) 4*40 或 8*36 4*24 或 8*20 4*14 或 8*10 4*16 或 8*12 Integrated PLL Multiple Sleep Mode Power Consumption （RTC, LCD Opened） Output Divided Frequency of Memory Map Mode 2:PM Self-Programming Voltage Status Detecting of Voltage of Battery Measurement Low Frequency UART (Integrated with Infrared Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page15 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） RTC Module √ √ √ √ √ √ × √（External TPS） Compensation) √ √ √ × I2C Module √ √ √ √ PMU Module √ √ √ √ SPI Module √ × × × CC Module √(4 个) × × × PWM Module √ √ × × Pulse Interrupt √ √ √ √ Dynamic Range 3000：1 3000;1 3000：1 3000：1 (Analog Input) +-800mVp +-800mVp +-800mVp +-800mVp Vref（Temperature Coefficient） 1.25V(25ppm/℃) 1.25V(25ppm/℃) 1.25V(25ppm/℃) 1.25V(25ppm/℃) Measurement ADC Channels 3 3 2 2 ADC Bits 16bit 16bit 16bit 16bit ADC Gain Level(Analog) 1/2/8/16 1/2/8/16 1/2/8/16 1/2/8/16 Off & DC Measurement √ √ √ √ Channel Waveform Sampling Data √ √ √ √ Power Waveform Data √ √ √ √ Active Power and Energy √ √ √ √ Energy √ √ × Reactive URms/IRms √ √ √ √ Power Factor √ √ × × Voltage line Frequency √ √ √ √ Software Calibration √ √ √ √ Calibration √ √ √ √ PF Pulse Output √ √ √ √ QF/SF Pulse Output √ √ × Only QF Pulse Startup & No-Load Function √ √ √ √ Simultaneously √ √ × × Anti-Tampering √ √ × × Anti-Tamper in Loss of Voltage √ √ × × Support Single-Phase 3 Wires √ √ × × Second Pulse Output and Compensation TBS(Temperature and Battery Voltage Measurement and Zero-Crossing Interrupt of Voltage and Current Channel, Maximum Signal Level Insert High-Pass Filter Turn Reactive & Apparent Power and P_offset/RMS_offset Active and Reactive Power of Two Channels Supplied Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page16 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Support Current Shunt & Current Transformer √ √ √ √ Rogowski Coil Select √ √ √ √ ATT7035 Block Diagram： Introduction： ATT7035 is a multi-function and high-precision single-phase energy metering SOC. It is integrated with single-phase Energy Measurement Unit, 8051 MCU core, Power Supply , RTC ,PLL，JTAG debug function etc. RTC module can compensate every second. ATT7035 can provide a integrated solution with single chip for single-phase multi-functional energy meter. Working Voltage: 2.7V – 3.6V. Working Temperature: -40℃～85℃. ATT7035 is less than 0.1% error on active energy over a dynamic range of 3000 to 1, support the accuracy criteria of Standard IEC62053-21、IEC62053-22 and IEC62053-23. Internal Reference Voltage: 1.25V± 3%(Temperature Coefficient: ±25ppm/℃). ATT7035 has three ADC channels; supports single-phase 2 wires and single-phase 3 wires; supports anti-tampering whose threshold can be set up. Three ADCs synchronous sampling waveform data can be provided, also is RMS of three channels. Current sampling channel can support 4 grade gain adjustment, diverter and current transformer can be direct connected. ATT7035 supports power offset and RMS offset calibration. Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page17 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） ATT7035 is based on the 8-bit CPU51 design, compatible with the instruction set and bus architectures of 8051. It is integrated PLL multiple frequency circuit. Pin Assignment： VDD3P3 SEG6/COM6/PA.6 SEG7/COM7/PA.7 CLKOUT/PE4 SEG34/PD.2 SEG35/PD.3 SEG8/PB.0 SEG9/PB.1 SEG10/PB.2 SEG11/PB.3 SEG12/PB.4 SEG13/PB.5 SEG14/PB.6 SEG15/PB.7 /JTAG/WDTEN SEG24/PC.0 SEG25/PC.1 SEG26/PC.2 SEG27/PC.3 VDD1P8 TDO/TX1/P2.0 TMS/RX1/P2.1 TDI/KEY.1/P1.1 TCK/KEY.0/P1.0 GND 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 /RST SEG16/P0.0 SEG17/P0.1 SEG18/P0.2 SEG19/P0.3 SEG20/P0.4 SEG21/P0.5 SEG22/P0.6 SEG23/P0.7 SEG36/PD.4 SEG37/PD.5 SEG38/PD.6 SEG39/PD.7 T2/P3.6 VBAT GND VDD3P3 VSYS T1/P3.5 T0/P3.4 CC0/PE0 CC1/PE1 TEST OSCI OSCO 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ATT7035AU 1 2 3 4 5 6 7 8 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 GND SEG5/COM5/PA.5 SEG4/COM4/PA.4 SEG33/PD.1 SEG32/PD.0 COM3 COM2 COM1 COM0 SEG3/PA.3 SEG2/PA.2 SEG1/PA.1 SEG0/PA.0 SEG31/PC.7 SEG30/PC.6 SEG29/PC.5 SEG28/PC.4 PF/P2.6 VDD1P8 LVDIN TX0/P2.2 RX0/P2.3 CC3/PE3/TX2 CC2/PE2/RX2 VDD3P3 9 10 11 1 2 13 14 15 16 17 18 19 20 21 22 23 24 25 GND QF/P2.7 SF/P2.5 PWM/P3.7 TMUXOUT/P2.4 /INT1/P3.3 MISO/P1.7 MOSI/P1.6 SCK/P1.5 SSN/P1.4 VREF AGND V1N V1P V2N V2P V3N V3P AVCC LVREFO KEY.3/P1.3 KEY.2/P1.2 /INT0/P3.2 SDA/P3.1 SCL/P3.0 ATT7037 Block Diagram：The same as ATT7035 Introduction：Functions are nearly the same as ATT7035, while GPIO pins are less Pin Assignment： Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page18 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） ATT7039 Block Diagram： Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page19 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Introduction： ATT7039 is a brief version of ATT7037， which including 48 pins. It is integrated with single-phase Energy Measurement Unit, 8051 MCU core, Power Supply , RTC ,PLL，JTAG debug function etc. RTC module can compensate every second. ATT7039 can provide a integrated solution with single chip for single-phase multi-functional energy meter. Working Voltage: 2.7V – 3.6V. Working Temperature: -40℃～85℃. Pin Assignment： Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page20 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page21 of 22 Rev0.3 Selection Guide of Hi-Trend Technology Energy Metering IC（370-CS-003） Hi-Trend Technology (Shanghai) Co., Ltd http://www.hitrendtech.com Page22 of 22 Rev0.3
