参数资料
| 型号： | 71M6521FE-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 86/107页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR 71M6521FE |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | 71M6521 |
| 已供物品： | 2 个板，线缆，CD，电源 |
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71M6521DE/DH/FE Data Sheet
Fundamental Energy Measurement Variables
The table below 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 1 second. Additionally, the hardware will not permit output values to ‘fold back’
upon overflow.
CE
Address
0x76
0x72
0x75
0x71
Name
W0SUM_X
W1SUM_X
VAR0SUM_X
VAR1SUM_X
Description
The sum of Watt samples from each wattmeter element ( In_8 is the gain
configured by IA_SHUNT or IB_SHUNT ).
LSB = 6.6952*10 -13 VMAX IMAX / In_8 Wh.
The sum of VAR samples from each wattmeter element ( In_8 is the gain
configured by IA_SHUNT or IB_SHUNT ).
LSB = 6.6952*10 -13 VMAX IMAX / In_8 Wh.
WxSUM_X is the Wh value accumulated for element ‘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 0.08356 μWh.
Instantaneous Energy Measurement Variables
The Frequency measurement is computed using the Frequency locked loop 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.
CE
Address
Name
Description
2
0x79
FREQ_X
Fundamental frequency. LSB
≡
F S
32
≈ 0 . 587 ? 10 ? 6 Hz
0x77
0x73
0x78
0x74
0x7D
0x7E
I0SQSUM_X
I1SQSUM_X
V0SQSUM_X
V1SQSUM_X
WSUM_ACCUM
VSUM_ACCUM
The sum of squared current samples from each element.
LSB = 6.6952*10 -13 IMAX 2 / In_8 2 A 2 h
The sum of squared voltage samples from each element.
LSB= 6.6952*10 -13 VMAX 2 V 2 h
These are roll-over accumulators for WPULSE and VPULSE
respectively.
The RMS values can be computed by the MPU from the squared current and voltage samples as follows:
Ix RMS =
IxSQSUM ? LSB ? 3600 ? F S
N ACC
Vx RMS =
VxSQSUM ? LSB ? 3600 ? F S
N ACC
Other Measurement Parameters
MAINEDGE_X is useful for implementing a real-time clock based on the input AC signal. MAINEDGE_X is the number
of half-cycles accounted for in the last accumulated interval for the AC signal.
TEMP_RAW may be used by the MPU to monitor chip temperature or to implement temperature compensation.
Page: 86 of 107
Rev 3
相关PDF资料 |
PDF描述 |
|---|---|
| 71M6531F-DB | BOARD DEMO 71M6531F |
| 71M6533-DB | BOARD DEMO 71M6533 |
| 71M6534H-DB | BOARD DEMO 71M6534H |
| 71M6541F-DB | DEMO BOARD 71M6541F |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6521FE-IGT | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC |
| 71M6521FE-IGT/F | 功能描述:计量片上系统 - SoC Residential 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 |
| 71M6521FE-IGT/F1 | 功能描述:计量片上系统 - SoC 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 |
| 71M6521FE-IGTR | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC |
| 71M6521FE-IGTR/F | 功能描述:计量片上系统 - SoC Residential 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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