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78M6631 PDF预览

78M6631

更新时间: 2022-09-26 00:46:13
品牌 Logo 应用领域
美信 - MAXIM /
页数 文件大小 规格书
30页 595K
描述
3-Phase Power-Measurement IC

78M6631 数据手册

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19-6039; Rev 1; 1/12  
78M6631  
3-Phase Power-  
Measurement IC  
DATA SHEET  
DS_6631_056  
DESCRIPTION  
FEATURES  
The Teridian™ 78M6631 is a highly integrated 3-phase  
power measurement and monitoring system-on-chip  
(SoC), with a 10 MHz 8051-compatible MPU core and  
Single Converter Technology® containing a 22-bit delta-  
sigma converter and 32-bit compute engine (CE). The  
78M6631 has been designed specifically for a wide  
variety of applications requiring 3-phase power and  
quality measurements. It supports both Delta and Wye  
configurations.  
< 0.5% Watt Accuracy Over 2000:1 Current  
Range and Over Temperature  
Exceeds IEC 62053/ANSI C12.20 Standards  
Voltage Reference < 40 ppm/°C  
Six Analog Inputs Supporting 3-Phase Voltage  
and Current Measurement Inputs  
Pin- or Biselectable Delta or Wye Configuration  
22-Bit Delta-Sigma ADC with Independent 32-  
Bit Compute Engine (CE)  
At the measurement interface, the device provides six  
analog inputs including three differential current and three  
voltage for interfacing to current and voltage sensors. The  
device provides better than 0.5% accuracy over a wide  
2000:1 dynamic range.  
8-Bit MPU (80515), One Clock Cycle per  
Instruction with 4 KB MPU XRAM  
128 KB Flash with Security  
32 kHz Time Base with Hardware Watchdog  
Timer  
The integrated MPU core and 128 KB of flash memory  
provide  
a
flexible means of configuration, post-  
UART, I2C, and High-Speed Slave SPI Host  
Interface Options  
processing, data formatting, interfacing to host processor  
via a UART or SPI interface, or using DIO pins for LEDs  
or relay control. Complete firmware is available from  
Maxim and can be loaded into the IC during  
manufacturing test.  
17 General-Purpose 5 V Tolerant I/O Pins  
Packaged in a RoHS-Compliant (6/6)  
Lead(Pb)-Free 56-Pin TQFN  
Application Firmware Includes (per Phase):  
oTrue RMS Current and Voltage Calculations  
oActive, Reactive, Apparent, Fundamental,  
and Harmonic Power Calculations  
oFundamental and Harmonic Current and  
Voltage Calculations  
oLine Frequency and Power Factor  
Calculations  
oPhase Compensation (±18° at 60 Hz)  
oBuilt-In Calibration Routines  
oProgrammable Alarm Thresholds  
oCommand Line (UART) Communications  
oHigh-Speed SPI Communications  
Teridian is a trademark and Single Converter Technology is a registered trademark of Maxim Integrated Products, Inc.  
Rev 1  
1

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