参数资料
型号: 71M6541F-DB
厂商: Maxim Integrated Products
文件页数: 94/166页
文件大小: 0K
描述: DEMO BOARD 71M6541F
标准包装: 1
系列: *
71M6541D/F/G and 71M6542F/G Data Sheet
4.4
71M6541D/F/G Using 71M6x01and Current Shunts
Figure 36 shows a typical connection for one isolated and one non-isolated shunt sensor, using the
71M6x01 Isolated Sensor Interface. This configuration implements a single-phase measurement with
tamper-detection using the second current sensor. This configuration can also be used to create a split
phase meter (e.g., ANSI Form 2S). For best performance, the IAP-IAN current sensor input is configured
for differential mode (i.e., DIFFA_E = 1, I/O RAM 0x210C[4] ). The outputs of the 71M6x01 Isolated Sensor
Interface are routed through a pulse transformer, which is connected to the pins IBP-IBN. The IBP-IBN
pins must be configured for remote sensor communication (i.e., RMT_E =1, I/O RAM 0x2709[3] ). See
Figure 3 for the AFE configuration corresponding to Figure 36 .
NEUTRAL
Shunt
LINE
Shunt
NEUTRAL
LOAD
Note:
This system is referenced to LINE
POWER SUPPLY
LINE
71M6xx1
MUX and ADC
IAP
IAN
V3P3A V3P3SYS GNDA GNDD
PWR MODE
CONTROL
Pulse
Trans-
former
71M6541D/F/G
WAKE-UP
REGULATOR
BATTERY
VBAT
VA
IBP
IBN
TEMPERATURE
SENSOR
VBAT_RTC
BATTERY
MONITOR
RTC
BATTERY
TX
AMR
IR
HOST
VREF
SERIAL PORTS
TX
RX
MODUL- RX
ATOR
POWER FAULT
COMPARATOR
SPI INTERFACE
RAM
COMPUTE
ENGINE
FLASH
MEMORY
MPU
RTC
TIMERS
COM0...5
SEG
SEG/DIO
LCD DRIVER
DIO, PULSES
DIO
V3P3D
OSCILLATOR/
PLL
XIN
LCD DISPLAY
8888.8888
PULSES,
DIO
I 2 C or μWire
EEPROM
32 kHz
ICE
XOUT
11/5/2010
Figure 36: 71M6541D/F/G with 71M6x01 isolated Sensor
94
Rev 4
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