参数资料
型号: 71M6541F-DB
厂商: Maxim Integrated Products
文件页数: 95/166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
4.5
71M6542F/G Using Local Sensors
Figure 38 shows a 71M6542F/G configuration using locally connected current sensors. The IAP-IAN
current channel may be directly connected to either a shunt resistor or a CT, while the IBP-IBN channel is
connected to a CT and is therefore isolated. This configuration implements a dual-phase measurement
utilizing Equation 2. For best performance, both the IAP-IAN and IBP-IBN current sensor inputs are
configured for differential mode (i.e., DIFFA_E = 1 and DIFFB_E = 1, I/O RAM 0x210C[4] and 0x210C[5] ).
The IBP-IBN input must be configured as an analog differential input disabling the remote sensor
interface (i.e., RMT_E = 0, I/O RAM 0x2709[3] ). See Figure 4 for the AFE configuration corresponding to
CT or
PHASE A
NEUTRAL
Shunt
LOAD
Note:
Shunt
PHASE B
NEUTRAL
LOAD
This system is referenced to PHASE A
POWER SUPPLY
PHASE A
MUX and ADC
IAP
IAN
V3P3A V3P3SYS GNDA GNDD
PWR MODE
CONTROL
71M6542F/G
WAKE-UP
REGULATOR
BATTERY
VB
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 37: 71M6542F/G with Local Sensors
Rev 4
95
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