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参数资料
型号： 71M6543F-IGT/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： 30/157页
文件大小： 2178K
代理商： 71M6543F-IGT/F
71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
125
The CE pulse generator can be controlled by either the MPU (external) or CE (internal) variables. Control is by
the MPU if the EXT_PULSE bit = 1 (CE RAM 0x20[5]). In this case, the MPU controls the pulse rate (external
pulse generation) by placing values into APULSEW and APULSER (CE RAM 0x45 and 0x49). By setting
EXT_PULSE = 0, the CE controls the pulse rate based on WSUM_X (CE RAM 0x84) and VARSUM_X (CE
RAM 0x88).
The 71M6543 Demo Code creep function halts both internal and external pulse generation.
Table 79: Sag Threshold, Phase Measurement, and Gain Adjust Control
CE
Address
Name
Default
Description
0x24
SAG_THR
2.39*10
7
The voltage threshold for sag warnings. The default value is
equivalent to 80 V RMS if VMAX = 600 V.
0x40
GAIN_ADJ0
16384
The assignments of these gain adjustments depends on the
meter design. See 4.5.5 Temperature Compensation for VREF
and Shunt Sensors on page 90 or 4.5.6 Temperature
Compensation of VREF and Current Transformers on page 92.
The default value of 16384 corresponds to unity gain.
0x41
GAIN_ADJ1
16384
0x42
GAIN_ADJ2
16384
0x43
GAIN_ADJ3
16384
0x44
GAIN_ADJ4
16384
5.4.8
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. The transfer variables can be categorized as:
Fundamental energy measurement variables
Instantaneous (RMS) values
Other measurement parameters
Fundamental Energy Measurement Variables
Table 80 describes each transfer variable for fundamental energy 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 one second. Additionally, the hardware does not permit
output values to fold back upon overflow.
Table 80: CE Transfer Variables (with Shunts)
CE
Address
Name
Description
Configuration
0x84
WSUM_X
The signed sum: W0SUM_X+W1SUM_X+W2SUM_X.
Figure 31 (page 87)
0x85
W0SUM_X
The sum of Wh samples from each wattmeter
element.
LSBW = 7.7562*10
-13 VMAX * IMAX Wh.
0x86
W1SUM_X
0x87
W2SUM_X
0x88
VARSUM_X
The signed sum:
VAR0SUM_X+VAR1SUM_X+VAR2SUM_X.
0x89
VAR0SUM_X
The sum of VARh samples from each wattmeter
element.
LSBW = 7.7562*10
-13 VMAX * IMAX VARh.
0x8A
VAR1SUM_X
0x8B
VAR2SUM_X
相关PDF资料
PDF描述
71M6543H-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543F-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543H-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543G-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543GH-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
相关代理商/技术参数
参数描述
71M6543F-IGTR/F 功能描述:计量片上系统 - SoC Precision 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
71M6543FT-IGT/F 制造商:Maxim Integrated Products 功能描述:ENERGY METER ICS - Rail/Tube
71M6543FT-IGTR/F 制造商:Maxim Integrated Products 功能描述:3-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel
71M6543G 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation
71M6543GH 制造商:未知厂家 制造商全称:未知厂家 功能描述:电表IC
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