71M6103-IF MAXIM [Maxim Integrated Products], 71M6103-IF Datasheet - Page 9

• Manufacturer Part Number: 71M6103-IF
• Description: On-Chip Temperature Sensor Enables Localized Digital Temperature On-Chip Power Monitoring
• Manufacturer: MAXIM [Maxim Integrated Products]

possible and should be surrounded by grounded copper structures. The trace pairs should be routed as
close to each other as permitted by the PCB manufacturer.
The copper separation (gap) between the shunt side and the 71M654x side of the signal transformer
PDS_6xxx_010
3.4
To limit emissions and susceptibility to electromagnetic and magnetic fields, the signal wiring between the
shunt resistors and the 71M6xxx should be as short as possible and should consist of tightly twisted pair
cable. Similarly, the PCB traces between the 71M6xxx and the 71M654x should be routed as short as
should be as wide as permitted by the footprint of the transformer, as shown in Figure 5.
v1.2
Figure 4: Current Sensors Connected to the 71M6543F/H or 71M6545/H with Three 71M6xx3
NEUTRAL
C
B
A
PCB Layout Considerations
Shunt Current Sensors
Pulse Transformers
HOST
AMR
IR
3x TERIDIAN
© 2008–2011 Teridian Semiconductor Corporation
71M6xx3
Note: This system is referenced to Neutral
NEUTRAL
VADC10 (VC)
VADC9 (VB)
IADC4
IADC5
VADC8 (VA)
IADC2
IADC0
IADC1
IADC6
IADC7
IADC3
SPI INTERFACE
SERIAL PORTS
MODUL-
POWER FAULT
COMPARATOR
MUX and ADC
ATOR
*IN = Neutral Current
TX
RX
VREF
}
}
}
}
IN*
IC
IB
IA
TX
RX
TEMPERATURE
V3P3A V3P3SYS
71M6543F/
71M6543H
TERIDIAN
COMPUTE
MEMORY
ENGINE
SENSOR
TIMERS
FLASH
MPU
RAM
RTC
ICE
POWER SUPPLY
LOAD
GNDA GNDD
OSCILLATOR/
REGULATOR
DIO, PULSES
LCD DRIVER
VBAT_RTC
PWR MODE
CONTROL
BATTERY
MONITOR
WAKE-UP
COM0...5
SEG/DIO
PLL
VBAT
9/17/2010
V3P3D
XOUT
SEG
DIO
XIN
71M6xxx Data Sheet
BATTERY
RTC
BATTERY
8888.8888
LCD DISPLAY
32 kHz
I
2
EEPROM
PULSES,
C or µWire
DIO
9