MAXQ3181 Maxim, MAXQ3181 Datasheet - Page 29

• Manufacturer Part Number: MAXQ3181
• Description: The MAXQ3181 is a dedicated electricity measurement front-end that collects and calculates polyphase voltage, current, active power and energy, and many other metering parameters of a polyphase load
• Manufacturer: Maxim

Bit:
Name:
Reset:
BIT
7:4
2:1
3
LINFRM
WIRSYS
NAME
Low-Power, Active Energy, Polyphase AFE
—
______________________________________________________________________________________
—
7
0
Reserved.
Selects the current linearity offset calibration method. See the Calibrating Current Offset section for
more information.
0 = IRMS
1 = IRMS + OFFS
These bits select the coefficient used in calculating apparent power.
00 = 1-phase, 3-wire (1P3W), or 3-phase, 4-wire (3P4W) (C = 1)
01 = 3-phase, 3-wire (3P3W) (C = 3/2)
10 = three voltages, three currents (3V3A) (C = 3/3)
3P3W Wiring (01)
3P4W Wiring (00)
—
6
0
2
+ OFFS
—
5
0
Operating Mode Register 2 (OPMODE2) (0x003)
—
0
4
FUNCTION
LINFRM
3
0
V
B
V
AB
I
B
2
0
I
A
V
V
WIRSYS
CB
I
A
I
C
I
C
N
1
0
V
APPSEL
0
0
29