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| 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： | 86/104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: 82 of 104
2005-2011 Teridian Semiconductor Corporation
A Maxim Integrated Products Brand
Temperature Compensation
For the 71M6513 (regular accuracy parts), the temperature coefficients TC1 and TC2 are given as constants that represent
typical component behavior (in V/°C
2). TC1 and TC2 allow compensation for variations of the reference voltage to within ±40
PPM/°C.
For the high-accuracy parts, individualized coefficients TC1 and TC2 can be retrieved from the on-chip fuses via TRIMBGA,
TRIMBGB, TRIMM[2:0] (see Section ‘Distinction between 71M6513 and 71M6513H Parts’). For the 71M6513H, TC1 and TC2
allow compensation for variations of the reference voltage to within ±10 PPM/°C
Since TC1 and TC2 are given in V/°C and V/°C
2, respectively, the value of the VREF voltage (1.195V) has to be
taken into account when transitioning to PPM/°C and PPM/°C
2. This means that PPMC = 26.84*TC1/1.195 and
PPMC2 = 1374*TC2/1.195).
Close examination of the electrical specification (see Table 62) for the 71M6513 reveals that the achievable deviation is not
strictly ±40 PPM/°C over the whole temperature range: Only for temperatures for which T-22 > 40 (i.e. T > 62°C) or for which
T-22 < -40 (i.e. T < -18°C), the data sheet states ±40 PPM/°C. For temperatures between -18°C and +62°C, the error should
be considered constant at ±1,600 PPM, or ±0.16%.
Similar considerations apply to the high-accuracy part 71M6513H (see Table 63), where the error around the calibration
temperature should be considered constant at ±600 PPM, or ±0.06%.
Table 62: VREF Definition for the Regular Accuracy Parts 71M6513
Parameter
Min
Typ
VREF(T) deviation from VNOM(T)
)
40
,
22
max(
10
)
(
)
(
)
(
6
T
VNOM
T
VNOM
T
VREF
-40
+40
PPM/C
Table 63: VREF Definition for the High-Accuracy Parts 71M6513H
Parameter
Min
Typ
VREF(T) deviation from VNOM(T)
)
40
,
22
max(
10
)
(
)
(
)
(
6
T
VNOM
T
VNOM
T
VREF
-10
+10
PPM/C
Figure 31 and Figure 32 show this concept graphically. The “box” from -18°C to +62°C reflects the fact that it is impractical
to measure the temperature coefficient of high-quality references at small temperature excursions. For example, at +25°C,
the expected error would be ±3°C * 40 PPM/°C, or just 0.012% for the regular-accuracy parts.
The maximum deviation of ±2520 PPM (or 0.252%) for the regular-accuracy parts is reached at the temperature
extremes. If the reference voltage is used to measure both voltage and current, the identical errors of ±0.252% add up to
a maximum Wh registration error of ±0.504%.
The maximum deviation of ±630 PPM (or 0.063%) for the 71M6513H is reached at the temperature extremes. If the
reference voltage is used to measure both voltage and current, the identical errors of ±0.063% add up to a maximum Wh
registration error of ±0.126%.
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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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