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| 型号： | 71M6533G-IGTR/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 9/132页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 3PH 100LQFP |
| 标准包装： | 400 |
| 系列： | Single Converter Technology® |
| 输入阻抗： | 40 千欧 ~ 90 千欧 |
| 测量误差： | 0.1% |
| 电压 - 高输入/输出： | 2V |
| 电压 - 低输入/输出： | 0.8V |
| 电流 - 电源： | 10mA |
| 电源电压： | 3 V ~ 3.6 V |
| 测量仪表类型： | 三相，中性相位 |
| 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： | 带卷 (TR) |
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FDS_6533_6534_004
1 Hardware Description
71M6533/G/H and 71M6534/H Data Sheet
1.1
Hardware Overview
The Teridian 71M6533 and 71M6534 single-chip energy meter integrate all primary functional blocks
required to implement a solid-state electricity meter. Included on the chip are:
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An analog front end (AFE)
An Independent digital computation engine (CE)
An 8051-compatible microprocessor (MPU) which executes one instruction per clock cycle (80515)
A voltage reference
A temperature sensor
LCD drivers
RAM and Flash memory
A real time clock (RTC)
A variety of I/O pins
energy (Wh) and reactive energy (VARh), as well as A h, and V h for four-quadrant metering. These
Various current sensor technologies are supported including Current Transformers (CT), Resistive Shunts
and Rogowski coils.
In a typical application, the 32-bit compute engine (CE) of the 71M6533/71M6534 sequentially processes
the samples from the voltage inputs on analog input pins and performs calculations to measure active
2 2
measurements are then accessed by the MPU, processed further and output using the peripheral devices
available to the MPU.
In addition to advanced measurement functions, the real time clock function allows the 71M6533/71M6534
to record time of use (TOU) metering information for multi-rate applications and to time-stamp tamper
events. Measurements can be displayed on 3.3 V LCDs commonly used in low-temperature environments.
Flexible mapping of LCD display segments facilitate integration of existing custom LCDs. Design trade-offs
between the number of LCD segments and DIO pins can be implemented in software to accommodate
various requirements.
In addition to the temperature-trimmed ultra-precision voltage reference, the on-chip digital temperature
compensation mechanism includes a temperature sensor and associated controls for correction of unwanted
temperature effects on measurement and RTC accuracy, e.g. to meet the requirements of ANSI and IEC
standards. Temperature dependent external components such as a crystal oscillator, current transformers
(CTs) and their corresponding signal conditioning circuits can be characterized and their correction factors
can be programmed to produce electricity meters with exceptional accuracy over the industrial temperature
range.
One of the two internal UARTs is adapted to support an Infrared LED with internal drive and sense
configuration and can also function as a standard UART. The optical output can be modulated at 38 kHz.
This flexibility makes it possible to implement AMR meters with an IR interface. A block diagram of the IC
is shown in Figure 1 .
1.2
Analog Front End (AFE)
The AFE of the 71M6533/71M6534 consists of an input multiplexer, a delta-sigma A/D converter and a
voltage reference.
1.2.1
Signal Input Pins
All analog signal input pins are sensitive to voltage. The VA, VB, and VC pins are single-ended. Pins
IAP/IAN, IBP/IBN, ICP/ICN, and IDP/IDN can be programmed individually to be differential or single-ended.
The differential signal is applied between the InP and InN input pins. Single-ended signals are applied to
the InP input while the common signal, return, is the V3P3A pin. When using the differential mode, inputs
can be chopped, i.e., a connection from V3P3A to InP or InN alternates in each multiplexer cycle.
Rev 2
9
相关PDF资料 |
PDF描述 |
|---|---|
| 71M6543F-IGT/F | IC ENERGY METERING |
| 71M6545-IGT/F | IC ENERGY METERING |
| 720-10007-00300 | CBL D-SUB 9PIN FMAL-25PIN FML 3M |
| 720-10010-00025 | CBL DSUB 9PIN FML-25PIN MAL .25M |
| 720-10020-00300 | CBL DSUB 9PIN FML-9PIN MALE 3M |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6533H | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6533H-IEL | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC |
| 71M6533H-IEL/F | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC |
| 71M6533H-IELR | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC |
| 71M6533H-IELR/F | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Precision Energy Meter IC |
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