71M6521FE-IM Maxim Integrated Products, 71M6521FE-IM Datasheet - Page 59

• Manufacturer Part Number: 71M6521FE-IM
• Description: Current & Power Monitors & Regulators Residential Energy Meter IC
• Manufacturer: Maxim Integrated Products

Specifications of 71M6521FE-IM

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 783-71M6521FE-IM/F, 783-71M6521FE-IMR, 783-71M6521FE-IMR/F 783-71M6521FEIM-DB,

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