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参数资料
| 型号： | 71M6515H-IGT/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 15/60页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER AFE 3PH 64-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 160 |
| 系列： | Single Converter Technology® |
| 测量误差： | 0.1% |
| 电源电压： | 3 V ~ 3.6 V |
| 测量仪表类型： | 3 相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-LQFP（10x10） |
| 包装： | 托盘 |
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71M6515H
A Maxim Integrated Products Brand
Energy Meter IC
DATA SHEET
JULY 2011
FUNCTIONAL DESCRIPTION
THEORY OF OPERATION
The 71M6515H integrates the primary functional blocks required to implement a solid-state electricity meter front end. Included
on-chip are an analog front end (AFE), a digital computation engine (CE), a voltage reference, a real time clock, and I/O pins.
Various current sensor technologies are supported including Current Transformers (CT), Resistive Shunts, and Rogowski
( di/dt) Coils.
In a typical application, the 71M6515H sequentially digitizes the voltage inputs on pins IA, VA, IB, VB, IC, VC and performs
calculations to measure active energy (Wh), reactive energy (VARh), and apparent energy (VAh). In addition to these
measurement functions, the real time clock function allows the device to record time of use (TOU) metering information for
multi-rate applications.
The 71M6515H contains a temperature-trimmed ultra-precise voltage reference, and the on-chip digital temperature compen-
sation mechanism includes a temperature sensor and associated controls for correction of unwanted temperature effects on
measurement. RTC accuracy can be greatly improved by supplying correction coefficients derived from crystal
characterization. The combination of both features enables designers to produce electricity meters with exceptional accuracy
over the industrial temperature range.
Meter Equations
The 71M6515H implements the equations in Table 1. Register EQU specifies the equation to be used. In one sample time,
each of the six inputs is converted and the selected equation updated. In a typical application, IA, IB, IC are connected to
current transformers that sense the current on each phase of the line voltage. VA, VB, and VC are typically connected to
voltage sensors (resistor dividers) with respect to NEUTRAL. NEUTRAL is to be connected to V3P3A, the analog supply
voltage. NEUTRAL is the zero reference for all analog measurements.
EQU
Watt & VAR Formula
Application
Channels used from MUX
sequence
Mux State:
0
1
2
3
4
5
0
1*
2
3*
4*
5
VA IA
VA(IA-IB)/2
VA IA + VB IB
VA (IA - IB)/2 + VC IC
VA(IA-IB)/2 + VB(IC-IB)/2)
VA IA + VB IB + VC IC
1 element, 2W 1?
1 element, 3W 1?
2 element, 3W 3 ?Delta
2 element, 4W 3? Delta
2 element, 4W 3? Wye
3 element, 4W 3? Wye
IA
IA
IA
IA
IA
IA
VA
VA
VA
VA
VA
VA
-
IB
IB
IB
IB
IB
-
-
VB
-
VB
VB
-
-
-
IC
IC
IC
-
-
-
VC
-
VC
Note: Equations 1*, 3*, 4* available only when IMAGE = 00 (CT mode).
Table 1: Meter Equations
Table 2 shows how the elements of the meter are mapped for the six possible equations.
Page: 15 of 60
? 2005 ? 2011 Teridian Semiconductor Corporation
1.6
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6515H-IGTR | 制造商:Maxim Integrated Products 功能描述:71M6515H-IGT - T/REEL - Tape and Reel 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Energy Meter IC |
| 71M6515H-IGTR/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 |
| 71M6515H-IGTW/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 |
| 71M6515H-IGTW1 | 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-IGTWR1 | 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 |
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