- 您现在的位置：买卖IC网 > Datasheet目录299 > 71M6515H-IGT/F (Maxim Integrated)IC ENERGY METER AFE 3PH 64-LQFP Datasheet资料下载
参数资料
| 型号： | 71M6515H-IGT/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 16/60页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER AFE 3PH 64-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 160 |
| 系列： | Single Converter Technology® |
| 测量误差： | 0.1% |
| 电源电压： | 3 V ~ 3.6 V |
| 测量仪表类型： | 3 相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-LQFP（10x10） |
| 包装： | 托盘 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页当前第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页
71M6515H
A Maxim Integrated Products Brand
Energy Meter IC
DATA SHEET
JULY 2011
EQU
Watt & VAR Formula
( WSUM / VARSUM )
W0SUM/
VAR0SUM
Element Output Mapping
W1SUM/ W2SUM/ I0SQ
VAR1SUM VAR2SUM SUM
I1SQ
SUM
I2SQ
SUM
0
1
2
3
4
5
VA IA (1 element, 2W 1 φ )
VA*(IA-IB)/2
(1 element, 3W 1 φ )
VA*IA + VB*IB
(2 element, 3W 3 φ Delta)
VA*(IA-IB)/2 + VC*IC
(2 element, 4W 3 φ Delta)
VA*(IA-IB)/2 + VB*(IC-IB)/2
(2 element, 4W 3 φ Wye)
VA*IA + VB*IB + VC*IC
(3 element, 4W 3 φ Wye)
VA*IA
VA*(IA-IB)/2
VA*IA
VA*(IA-IB)/2
VA*(IA-IB)/2
VA*IA
-
VA*IB
VB*IB
-
VB*(IC-IB)/2
VB*IB
-
-
-
VC*IC
VC*IC
IA
IA-IB
IA
IA-IB
IA-IB
IA
-
IB
IB
IB
IC-IB
IB
-
-
-
IC
IC
IC
directly calculates Watts, VARs, V , and I and accumulates them for one interval.
Table 2: Meter Element Output Mapping
ANALOG FRONT END
A/D Converter (ADC)
A single delta-sigma A/D converter (ADC) digitizes the inputs to the device. The resolution of the ADC is 21 bits. The ADC
operates at 5MHz oversampling rate and places the digital results in CE memory. Each analog input is sampled at 2520Hz.
Once each accumulation interval, it refreshes the temperature value that is placed in the TEMP_RAW register. The analog re-
ference for all inputs is V3P3A, i.e. the ADC processes voltages between the input pins and V3P3A.
Voltage Reference
The device includes an on-chip precision bandgap voltage reference that incorporates auto-zero techniques as well as
production trims to minimize errors caused by component mismatch and drift. The result is a voltage output with a predictable
temperature coefficient.
The CE compensates for temperature characteristics of the voltage reference by modifying the gain applied to the V and I
channels based on the coefficients PPMC and PPMC2 . See the section “TEMPERATURE COMPENSATION” for details.
DIGITAL COMPUTATION
The six ADC outputs are processed and accumulated digitally. The default product summation is based on 42*60 (if the
SUM_CYCLES register is set to 60) samples per accumulation interval. At the end of each accumulation interval, a ready
interrupt (IRQZ) is signaled (if enabled with the READY bit in STMASK ), indicating that fresh data is available to the host. For
instance, if SUM_CYCLES =30, the IRQZ rate will be 2Hz (500ms).
A dedicated 32-bit Computation Engine (CE) performs the precision computations necessary to accurately measure energy.
Internal CE calculations include frequency-insensitive offset cancellation on all six channels and a frequency insensitive 90 °
phase shifter for VAR calculations. The CE also includes LPF smoothing filters after each product and squaring circuit to
attenuate ripple and eliminate beat frequencies between the power line fundamental and the accumulation time. The CE
2 2
At the end of each CE computation cycle, the accumulated data are post-processed to calculate RMS amplitudes, phase
angles, and VAh. When post-processing is complete, the IRQZ signal is activated.
Page: 16 of 60
? 2005 ? 2011 Teridian Semiconductor Corporation
1.6
相关PDF资料 |
PDF描述 |
|---|---|
| 71M6521BE-IGTR/F | IC ENERGY METER 8K FLASH 64-LQFP |
| 71M6533G-IGTR/F | IC ENERGY METER 3PH 100LQFP |
| 71M6543F-IGT/F | IC ENERGY METERING |
| 71M6545-IGT/F | IC ENERGY METERING |
| 720-10007-00300 | CBL D-SUB 9PIN FMAL-25PIN FML 3M |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6515H-IGTR | 制造商:Maxim Integrated Products 功能描述:71M6515H-IGT - T/REEL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Energy Meter IC |
| 71M6515H-IGTR/F | 功能描述:计量片上系统 - SoC Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6515H-IGTW/F | 功能描述:计量片上系统 - SoC Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6515H-IGTW1 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation |
| 71M6515H-IGTWR1 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation |
发布紧急采购，3分钟左右您将得到回复。