MAXQ3181-RAN+ Maxim Integrated Products, MAXQ3181-RAN+ Datasheet - Page 28

• Manufacturer Part Number: MAXQ3181-RAN+
• Description: IC AFE POLYPHASE LO-PWR 28-TSSOP
• Manufacturer: Maxim Integrated Products

Specifications of MAXQ3181-RAN+

• Number Of Channels: 8
• Power (watts): 35mW
• Voltage - Supply, Analog: 3.3V
• Voltage - Supply, Digital: 3.3V
• Package / Case: 28-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Bits: -

Low-Power, Active Energy, Polyphase AFE
28
BIT
1:0
______________________________________________________________________________________
CONCFG
NAME
These bits determine how power is calculated on each of the three phases.
00
01
10
11
P
P
P
P
P
P
P
P
P
P
P
P
A
B
C
A
B
C
A
B
C
A
B
C
= I
= I
= I
= I
= I
= I
= I
= I
= I
= I
= I
= I
A
B
C
A
B
C
A
B
C
A
B
C
x V
x V
x V
x V
x (-V
x V
x V
x (-V
x V
x V
x (V
x V
A
B
C
A
C
A
C
A
C
A
C
A
Operating Mode Register 1 (OPMODE1) (0x002) (continued)
)
- V
- V
C
C
)
)
Use this configuration when the load is
connected in a wye arrangement and
neutral is connected to MAXQ3181 ground,
or when the load is connected in a delta
arrangement and isolated voltage and
current sensors are used. This
arrangement measures power in each load
branch rather than power in each source
branch.
Use this configuration when the load is
connected in a four-wire delta
arrangement. In this arrangement, the BC
leg is split and V
equal to -V
neutral.
Use this configuration when the load is
connected in a four-wire wye arrangement,
but only two voltage sensors are
available. When connected in this way,
phase B is assumed to be ground.
Use this configuration when the load is
connected as a three-wire delta and it is
desired to measure the voltage and current
inside the delta legs, but to calculate the
power in each of the source circuits. When
connected this way, source phase B is
considered ground.
C-N
. Voltages are referenced to
B-N
FUNCTION
is expected to be
V
V
I
V
V
I
I
I
I
I
I
I
I
I
V
V
V
V
I
V
I
V
I
I
N
V
I
V
V
V