- 您现在的位置：买卖IC网 > PDF目录20604 > 71M6542F-IGT/F (Maxim Integrated)IC ENERGY METERING PDF资料下载
参数资料
| 型号： | 71M6542F-IGT/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 14/166页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METERING |
| 标准包装： | 90 |
| 系列： | * |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页当前第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页第158页第159页第160页第161页第162页第163页第164页第165页第166页
71M6541D/F/G and 71M6542F/G Data Sheet
sensor. As seen in Figure 5 , when a remote isolated shunt sensor is connected via the 71M6x01, the
samples associated with this current channel are not routed to the multiplexer, and are instead
transferred digitally to the 71M6542F/G via the digital isolation interface and are directly stored in CE
RAM.
See Figure 6 for the multiplexer timing sequence corresponding to Figure 5 . See Figure 38 for the meter
IA
VREF
IAP
MUX
?Σ ADC
Local
Shunt
IAN
VREF
CONVERTER
VREF
VADC10 (VA)
VADC
FIR
22
VADC9 (VB)
CE RAM
IB
Remote
INP
SP
IBP
Digital
Shunt
71M6x01
S N
IBN
Isolation
Interface
22
INN
71M6542F
11/5/2010
Figure 5. 71M6542F/G AFE Block Diagram with 71M6x01
2.2.1
Signal Input Pins
The 71M6541D/F/G features five ADC inputs. The 71M6542F/G features six ADC inputs.
IAP-IAN and IBP-IBN are intended for use as current sensor inputs. These four current sensor inputs can be
configured as two single-ended inputs, or can be paired to form two differential inputs. For best
performance, it is recommended to configure the current sensor inputs as differential inputs (i.e., IAP-IAN
and IBP-IBN). The first differential input (IAP-IAN) features a pre-amplifier with a selectable gain of 1 or 8,
and is intended for direct connection to a shunt resistor sensor, and can also be used with a Current
Transformer (CT). The remaining differential pair (i.e., IBP-IBN) may be used with CTs, or may be enabled
to interface to a remote 71M6x01 isolated current sensor providing isolation for a shunt resistor sensor using
a low cost pulse transformer.
The remaining input in the 71M6541D/F (VA) is single-ended, and is intended for sensing the line voltage in
a single-phase meter application using Equation 0 or 1 (see 2.3.4 Meter Equations on page 25 ). The
71M6542F/G features an additional single-ended voltage sensing input (VB) to support bi-phase
applications using Equation 2. These single-ended inputs are referenced to the V3P3A pin.
All analog signal input pins measure voltage. In the case of shunt current sensors, currents are sensed as a
voltage drop in the shunt resistor sensor. Referring to Figure 3 , shunt sensors can be connected directly to
the 71M654x (referred to as a ‘local’ shunt sensor) or connected via an isolated 71M6x01 (referred to as a
‘remote’ shunt sensor). In the case of Current Transformers (CT), the current is measured as a voltage
across a burden resistor that is connected to the secondary winding of the CT. Meanwhile, line voltages are
sensed through resistive voltage dividers. The VA and VB pins (VB is available in the 71M6542F/G only)
are single-ended and their common return is the V3P3A pin.
Pins IAP-IAN can be programmed individually to be differential or single-ended as determined by the
DIFFA_E ( I/O RAM 0x210C[4] ) control bit. However, for most applications, IAP-IAN are configured as a
differential input to work with a shunt or CT directly interfaced to the IAP-IAN differential input with the
appropriate external signal conditioning components (see 4.2 Direct Connection of Sensors on page 92 ).
14
Rev 4
相关PDF资料 |
PDF描述 |
|---|---|
| R1S12-053.3/H | CONV DC/DC 1W 05VIN 3.3VOUT |
| VI-BNV-EU-F4 | CONVERTER MOD DC/DC 5.8V 200W |
| 71M6513H-IGTR/F | IC ENERGY METER 3PH 100-LQFP |
| 78M6618-MR/F/P1 | IC PWR MEASUREMENT OCTAL 68QFN |
| VI-BNV-EU-F3 | CONVERTER MOD DC/DC 5.8V 200W |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6542F-IGTR/F | 功能描述:计量片上系统 - SoC Precision 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 |
| 71M6542FT-IGT/F | 制造商:Maxim Integrated Products 功能描述:1-PHASE SOC 128KB WITH PREC TEMP SENSOR - Rail/Tube |
| 71M6542FT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:1-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel |
| 71M6542G | 制造商:未知厂家 制造商全称:未知厂家 功能描述:71M6541D/71M6541F/71M6541G/71M6542F/71M6542G 是 TeridianTM 的第4 代高集成度单相电表SoC |
| 71M6542G-IGT/F | 功能描述:计量片上系统 - SoC 1-Phase Metering SOC with 128KB Flash 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 |
发布紧急采购，3分钟左右您将得到回复。