MAXQ3181 Maxim, MAXQ3181 Datasheet - Page 35

• 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

This register contains gain coefficient for phase X voltage channel. The raw values are taken from the selected mea-
surement quantity and scaled by the factor:
Note: Bit 15 of this register must be set to zero for correct operation.
This register contains gain coefficient for phase X energy. The raw values are taken from the selected measurement
quantity and scaled by the factor:
Note: Bit 15 of this register must be set to zero for correct operation.
This signed register contains the angle as a fraction of one radian to add to the measured phase angle when the
measured current is above the value given in I1THR. This signed value ranges from -0.5 radian (at a value of
0x8000) to +(0.5 - 2
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Bit:
Name:
Reset:
Low-Power, Active Energy, Polyphase AFE
______________________________________________________________________________________
15
15
15
7
7
7
-16
Voltage Gain, Phase X = A/B/C (X.V_GAIN) (A: 0x132, B: 0x21E, C: 0x30A)
) radian (at a value of 0x7FFF).
Energy Gain, Phase X = A/B/C (X.E_GAIN) (A: 0x134, B: 0x220, C: 0x30C)
14
14
14
6
6
6
Phase-Angle Compensation, High Range, Phase X = A/B/C (X.PA0)
13
13
13
5
5
5
Voltage Gain Coefficient High Byte
Voltage Gain Coefficient Low Byte
Energy Gain Coefficient High Byte
Energy Gain Coefficient Low Byte
Phase-Angle Offset High Byte
Phase-Angle Offset Low Byte
X V GAIN
X E GAIN
. _
. _
2
2
12
12
12
4
4
14
4
14
0x00
0x00
0x40
0x00
0x40
0x00
11
11
11
3
3
3
(A: 0x13E, B: 0x22A, C: 0x316)
10
10
10
2
2
2
9
1
9
1
9
1
8
0
8
0
8
0
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