71M6103 Maxim, 71M6103 Datasheet - Page 7

• Manufacturer Part Number: 71M6103
• Description: The 71M6103/71M6113/71M6201/71M6203/71M6601/71M6603 (71M6xxx) isolated sensor ICs enable Teridian's 4th-generation polyphase-metering 71M654x systems-on-chips (SoCs) to use nonisolating sensors such as resistive shunts without the need for costly and
• Manufacturer: Maxim

phases, while a locally connected fourth shunt sensor can be optionally used to sense neutral current.
Since the local shunt is connected to the neutral circuit, the meter is also referenced to the neutral circuit.
PDS_6xxx_010
3.3
Figure 3
71M6x01. This single-phase configuration uses one local shunt and one shunt isolated with a 71M6x01
device. Since the local shunt is connected to the LINE circuit, the meter is also referenced to the LINE
circuit.
Figure 4
71M6545/H. This polyphase configuration uses three 71M6xx3 to isolate the shunt sensors for the three
v1.2
Connections to Sensors and to the 71M654x
shows the sensor connections for single-phase meter application using a 71M6541D/F and
shows the sensor connections for a polyphase meter application using a 71M6543F/H or
Figure 2: External Components Connected to the 71M6xxx
Sensing
Voltage
© 2008–2011 Teridian Semiconductor Corporation
TERIDIAN
71M6xxx
5
8
TERIDIAN
71M654x
Current Shunt
6
2
Sensor
7
3
R1
R2
Transformer
1 kΩ
1 kΩ
Pulse
1
4
1. 0 µF
C1
Load
71M6xxx Data Sheet
7