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| 型号： | 71M6543F-DB-CT |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 70/91页 |
| 文件大小： | 0K |
| 描述： | DEMO BOARD 71M6543F-DB-CT |
| 标准包装： | 1 |
| 系列： | * |
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71M6543 Demo Board User’s Manual
4.3 COMMENTS ON SCHEMATICS
4.3.1 GENERAL
The schematics shown in this document are provided for a Demo Meter that functions under laboratory conditions.
Maxim does not guarantee proper function of a meter under field conditions when using the Demo Board schematics.
Care should be taken by the meter designer that all applicable design rules as well as reliability, safety and legal
regulations are met by the meter design.
4.3.2 USING FERRITES IN THE SHUNT SENSOR INPUTS
The 71M6543 Demo Board in shunt configuration has footprints on the PCB to accommodate ferrites between the
shunt signal inputs and the 71M6xxxx Remote Sensors. These footprints, labeled L4, L5, L6, L7, L9, and L10, are
populated with 0-Ohm resistors. It is not advisable to directly replace these resistors with ferrites without further
changes, since this will degrade the low-current accuracy to some degree.
If ferrites are needed for EMC reasons, the input circuit should be modified as shown in Figure 4-9. The modifications
are as follows:
?
?
?
Positions L4, L5, L6, etc. are replaced with ferrites.
A 10 Ω resistor is added across the sensor input.
The two 1,000 pF capacitors from INP to local ground and from INN to local ground are replaced with
10,000 pF or higher value capacitors.
U19
R123
IAP_IN
1
2
IA_IN
IAN_IN
1
2
J30
R51
10.0
600 Ohm f errite
L21
R50
3.4
DNP
R49
3.4
DNP
R53
3.4
DNP
C83
10,000pF
R115
499
5
6
7
8
TMUX GND
INP SN
INN SP
TEST VCC
4
3
2
1
750 DNP
750110056
4 3
1.08 : 1
6 1
* T8 *
600 Ohm f errite
C84
10,000pF
R117
499
71M6103-8SOIC
GND_R6000_A
C23
1uF
L22
R121
Page: 70 of 91
Figure 4-9: Input Circuit with Ferrites
750 DNP
R118
0 DNP
IA
v5
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6543F-IGT/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 |
| 71M6543F-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 |
| 71M6543FT-IGT/F | 制造商:Maxim Integrated Products 功能描述:ENERGY METER ICS - Rail/Tube |
| 71M6543FT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel |
| 71M6543G | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation |
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