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參數資料
型號: 71M6543F-IGTR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 模擬信號調理
英文描述: SPECIALTY ANALOG CIRCUIT, PQFP100
封裝: LEAD FREE, LQFP-100
文件頁數: 144/157頁
文件大小: 2178K
代理商: 71M6543F-IGTR/F
71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
87
4.3
Systems Using 71M6xx3 Isolated Sensors and Current Shunts
Figure 31 shows a typical connection for current shunt sensors; using the 71M6xx3 (polyphase) isolated
sensors. Note that one shunt current sensor is connected without isolation, which is the neutral current
sensor in this example (connected to pins IADC0-IADC1). Each 71M6xx3 device is electrically isolated
by a low-cost pulse transformer. The 71M6543 current sensor inputs must be configured for remote
sensor communications, as described in 2.2.8 71M6xx3 Isolated Sensor Interface (page 22). Flexible
remapping using the I/O RAM registers MUXn_SEL[3:0] allows the sequence of analog input pins to be
different from the standard configuration (a corresponding CE code must be used). See Figure 2 for the
AFE configuration corresponding to Figure 31.
MPU
RTC
TIMERS
IADC0
VADC8 (VA)
IADC2
VADC9 (VB)
XIN
XOUT
RX
TX
RX
COM0...5
V3P3A V3P3SYS
VBAT
VBAT_RTC
IADC4
VADC10 (VC)
SEG
GNDA GNDD
SEG/DIO
DIO
ICE
C
B
A
NEUTRAL
LOAD
8888.8888
PULSES,
DIO
IR
AMR
POWER FAULT
COMPARATOR
MODUL-
ATOR
SERIAL PORTS
OSCILLATOR/
PLL
MUX and ADC
LCD DRIVER
DIO, PULSES
COMPUTE
ENGINE
FLASH
MEMORY
RAM
32 kHz
REGULATOR
Shunt Current Sensors
POWER SUPPLY
TERIDIAN
71M6543F/
71M6543H/
71M6543G/
71M6543GH
TEMPERATURE
SENSOR
VREF
IADC6
BATTERY
PWR MODE
CONTROL
WAKE-UP
NEUTRAL
I
2C or Wire
EEPROM
9/17/2010
IADC1
IADC3
IADC5
IADC7
RTC
BATTERY
V3P3D
BATTERY
MONITOR
SPI INTERFACE
HOST
LCD DISPLAY
Resistor
Dividers
Pulse Transformers
3x TERIDIAN
71M6xx3
Note: This system is referenced to Neutral
71
M
6
xx
3
71
M
6
xx
3
71
M
6
xx
3
}IN*
}IA
}IB
}IC
*IN = Neutral Current
Figure 31: System Using Three-Remotes and One-Local (Neutral) Sensor
相關PDF資料
PDF描述
71M6543H-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543G-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543GH-IGTR/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543GH-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
71M6543G-IGT/F SPECIALTY ANALOG CIRCUIT, PQFP100
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