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參數資料
| 型號： | 71M6521DE-IM/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, QCC68 |
| 封裝： | LEAD FREE, LQFN-68 |
| 文件頁數： | 87/103頁 |
| 文件大小： | 1691K |
| 代理商： | 71M6521DE-IM/F |
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71M6521DE/71M6521FE
Energy Meter IC
DATA SHEET
OCTOBER 2010
Page: 84 of 103
2005-2010 Teridian Semiconductor Corporation
v1.1
A Maxim Integrated Products Brand
19-5370; 10/10
CE
Address
Name
Description
0x76
W0SUM_X
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.
0x72
W1SUM_X
0x75
VAR0SUM_X
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.
0x71
VAR1SUM_X
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 Wh.
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
0x79
FREQ_X
Fundamental frequency. LSB
6
32
10
587
.
0
2
≈
≡ S
F
Hz
0x77
I0SQSUM_X
The sum of squared current samples from each element.
LSB = 6.6952*10
-13 IMAX2 / In_82 A2h
0x73
I1SQSUM_X
0x78
V0SQSUM_X
The sum of squared voltage samples from each element.
LSB= 6.6952*10
-13 VMAX2 V2h
0x74
V1SQSUM_X
0x7D
WSUM_ACCUM
These are roll-over accumulators for WPULSE and VPULSE
respectively.
0x7E
VSUM_ACCUM
The RMS values can be computed by the MPU from the squared current and voltage samples as follows:
ACC
S
RMS
N
F
LSB
IxSQSUM
Ix
=
3600
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.
ACC
S
RMS
N
F
LSB
VxSQSUM
Vx
=
3600
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| 71M6521FE-IGTR/F | SPECIALTY ANALOG CIRCUIT, QFP64 |
| 71M6521DE-IMR/F | SPECIALTY ANALOG CIRCUIT, QCC68 |
| 71M6521FE-IM/F | SPECIALTY ANALOG CIRCUIT, QCC68 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 71M6521DE-IMR/F | 功能描述:計量片上系統 - SoC Residential Energy Meter IC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數據 RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數量:12 片上 ADC: 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6521DH | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Energy Meter ICs |
| 71M6521DH-IGT/F | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Energy Meter ICs |
| 71M6521DH-IGTR/F | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Energy Meter ICs |
| 71M6521FE | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Energy Meter IC |
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