71m6521fe Maxim Integrated Products, Inc., 71m6521fe Datasheet - Page 59

• Manufacturer Part Number: 71m6521fe
• Description: Energy Meter Ic
• Manufacturer: Maxim Integrated Products, Inc.

APPLICATION INFORMATION
Figure 28 and Figure 29 show how resistive dividers, current transformers, and restive shunts are connected to the voltage and
current inputs of the 71M6521DE/FE.
v1.0
V
in
VA = Vin * R
R
in
Figure 28: Resistive Voltage Divider (Left), Current Transformer (Right)
out
Connection of Sensors (CT, Resistive Shunt)
/(R
out
R
+ R
out
I
in
© 2005-2008 TERIDIAN Semiconductor Corporation
in
)
Figure 29: Resistive Shunt
VA
Vout = R * I
R
I
in
core
1/N
in
71M6521DE/71M6521FE
V
V3P3
IA
out
I
out
I
Vout = R * I
in
R
Filter
Energy Meter IC
out
= R * I
V3P3
IA
V
out
DATASHEET
I
in
in
/N
JANUARY 2008
Page: 59 of 101
I
out