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参数资料
| 型号： | 71M6513-IGTR/F |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封装： | LEAD FREE, LQFP-100 |
| 文件页数： | 73/104页 |
| 文件大小： | 1390K |
| 代理商： | 71M6513-IGTR/F |
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71M6513/71M6513H
3-Phase Energy Meter IC
DATA SHEET
AUGUST 2011
Page: 70 of 104
2005-2011 Teridian Semiconductor Corporation
A Maxim Integrated Products Brand
CE
Address
Name
Default
Description
0x31
SAG_THR
+23,930,000
(0x16D23AA)
Meter voltage inputs must be above this threshold to prevent sag alarms.
LSB = VMAX * 7.879810
-9 V.
For example, if a sag threshold of 80V RMS is desired,
9
10
8798
.
7
2
80
_
=
VMAX
THR
SAG
0x32
SAG_CNT
80
Number of consecutive voltage samples below SAG_THR before a sag alarm
is declared (80*397s = 31.8ms).
CE Transfer Variables
When the MPU receives the XFER_BUSY interrupt, it knows that fresh data is available in the transfer variables. CE transfer
variables are modified during the CE code pass that ends with an XFER_BUSY interrupt. They remain constant throughout
each accumulation interval. In this data sheet, the names of CE transfer variables always end with _X.
Fundamental Power Measurement Variables
The table below describes each transfer variable for fundamental power measurement. All variables are signed 32 bit integers.
Accumulated variables such as WSUM are internally scaled so they have at least 2x margin before overflow when the
integration time is 1 second. Additionally, the hardware will not permit output values to ‘fold back’ upon overflow.
CE
Address
Name
Description
0x42
WSUM_X
The signed sum: W0SUM_X+W1SUM_X+W2SUM_X
0x43
W0SUM_X
The sum of Watt samples from each wattmeter element.
LSB = 9.4045*10
-13 VMAX IMAX / In_8 Wh.
0x44
W1SUM_X
0x45
W2SUM_X
0x46
VARSUM_X
The signed sum: VAR0SUM_X+VAR1SUM_X+VAR2SUM_X
0x47
VAR0SUM_X
The sum of VAR samples from each wattmeter element.
LSB = 9.4045*10
-13 VMAX IMAX / In_8 VARh.
0x48
VAR1SUM_X
0x49
VAR2SUM_X
WSUM_X and VARSUM_X are the signed sum of Phase-A, Phase-B and Phase-C Wh or VARh values according to the
metering equation specified in the I/O RAM register EQU. WxSUM_X is the Wh value accumulated for phase ‘x’ in the last
accumulation interval and can be computed based on the specified LSB value.
For example, with VMAX = 600V and IMAX = 208A, LSB (for WxSUM_X ) is 0.1173 Wh.
Instantaneous Power Measurement Variables
The FREQSEL Register selects the input phase used for frequency measurement and for the MAIN_EDGE counter. The
frequency measurement is implemented using the frequency locked loop of the CE for the selected phase.
IxSQSUM_X and VxSQSUM are the squared current and voltage samples acquired during the last accumulation interval.
INSQSUM_X can be used for computing the neutral current.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6515H | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6515H_11 | 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-DB | 功能描述:开发板和工具包 - 8051 71M6515H Demo Brd RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| 71M6515H-IGT | 制造商:Maxim Integrated Products 功能描述:METERING FRONT END - Rail/Tube |
| 71M6515H-IGT/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 |
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