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參數資料
| 型號： | 71M6543G-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封裝： | LEAD FREE, LQFP-100 |
| 文件頁數： | 148/157頁 |
| 文件大小： | 2178K |
| 代理商： | 71M6543G-IGT/F |
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71M6543F/H and 71M6543G/GH Data Sheet
90
2008–2011 Teridian Semiconductor Corporation
v1.2
measurement error. The 71M6543H and 71M6543GH 0.1% grade devices should be used in Class
0.2% and Class 0.5% designs, to allow margin for the other error sources in the system.
The preceding discussion in this section also applies to the71M6603 (0.5%), 71M6113 (0.5%) and
71M6203 (0.1%) remote sensors. Refer to the 71M6xxx Data Sheet for details.
4.5.2
Temperature Coefficients for the 71M6543F and 71M6543G
The equations provided below for calculating TC1 and TC2 apply to the 71M6543F and 71M6543G (0.5%
energy accuracy). In order to obtain TC1 and TC2, the MPU reads TRIMT[7:0] (I/O RAM 0x2309) and uses
the TC1 and TC2 equations provided. PPMC and PPMC2 are then calculated from TC1 and TC2, as shown.
The resulting tracking of the reference voltage (VREF) is within ±40 ppm/°C, corresponding to a ±0.5%
energy measurement accuracy. See 4.5.1 Distinction Between Standard and High-Precision Parts.
TRIMT
C
V
TC
=
°
95
.
4
275
)
/
(
1
TRIMT
C
V
TC
+
=
°
00028
.
0
557
.
0
)
/
(
2
1
4632
.
22
TC
PPMC
=
2
116
.
1150
2
TC
PPMC
=
4.5.3
Temperature Coefficients for the 71M6543H and 71M6543GH
The 71M6543H and 71M6543GH undergo a two-pass factory trimming process which stores additional
trim fuse values. The additional trim fuse values characterize the device’s VREF behavior at various
temperatures. The values for TC1 and TC2 are calculated from the values read from the TRIMT[7:0] (I/O
RAM 0x2309), TRIMBGB[15:0] (Info Page 0x92 and 0x93) and TRIMBGD[7:0] (Info Page 0x94) non-
volatile on-chip fuses using the equations provided. The resulting tracking of the reference voltage is
within ±10 ppm/°C, corresponding to a ±0.126% energy measurement accuracy. The equations for deriving
PPCM and PPMC2 from TC1 and TC2 are also provided. See 4.5.1 Distinction Between Standard and
TC1(V/℃)=35.091+0.01764TRIMT+1.587()
TRIMT
C
V
TC
=
°
00028
.
0
557
.
0
)
/
(
2
1
4632
.
22
TC
PPMC
=
2
116
.
1150
2
TC
PPMC
=
TRIMT[7:0] trims the VREF voltage for minimum variation with temperature. The TRIMT[7:0] fuses are
read by the MPU directly at I/O RAM address 0x2309[7:0].
During the second pass trim for the 71M6543H and 71M6543GH, VREF is further characterized at 85°C
and 22°C, and the resulting fuse trim values are stored in TRIMBGB[15:0] and TRIMBGD[7:0],
respectively. TRIMBGB[15:0] and TRIMBGD[7:0] cannot be read directly by the MPU. See 5.3 Reading
the Info Page (71M6543H and 71M6543GH only) on page 118 for information on how to read the Info
Page trim fuses.
4.5.4
Temperature Coefficients for the 71M6xx3
Refer to the 71M6xxx Data sheet for the equations that are applicable to each 71M6xx3 part number and
the corresponding temperature coefficients.
4.5.5
Temperature Compensation for VREF and Shunt Sensors
This section discusses metrology temperature compensation for the meter designs where current shunt
sensors are used in conjunction with Teridian’s 71M6xx3 remote isolated sensors, as shown in Figure 31.
Sensors that are directly connected to the 71M6543 are affected by the voltage variation in the 71M6543
VREF due to temperature. On the other hand, shunt sensors that are connected to 71M6xx3 remote
sensor are affected by the VREF in the 71M6xx3. The VREF in both the 71M6543 and 71M6xx3 can be
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相關代理商/技術參數 |
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|---|---|
| 71M6543G-IGTR/F | 功能描述:計量片上系統 - SoC Precision 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 |
| 71M6543GT-IGT/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Bulk |
| 71M6543GT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Tape and Reel |
| 71M6543H | 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation |
| 71M6543H-IGT/F | 功能描述:IC ENERGY METER 100-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:托盤 零件狀態:停產 輸入阻抗:- 測量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計類型:3 相 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-LQFP 供應商器件封裝:100-LQFP（14x14） 標準包裝:90 |
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