71M6515H_11 Datasheet, PDF (35/60 Pages) Teridian Semiconductor Corporation – Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation

71M6515H
A Maxim Integrated Products Brand
Energy Meter IC
DATA SHEET
JULY 2011
Value in Pulse
Source Register
(hex) (dec)
0x10
16
0x11
17
0x12
18
0x13
19
0x14
20
0x15
21
0x16
22
0x17
23
0x18
24
0x19
25
0x1A
26
0x1B
27
0x1C
28
0x1D
29
0x1E
30
0x1F
31
0x20
32
0x21
33
0x22
34
0x23
35
0x24
36
Name
Description
VASQSUM
VBSQSUM
VCSQSUM
WSUM_I
WASUM_I
WBSUM_I
WCSUM_I
VARSUM_I
VARASUM_I
VARBSUM_I
VARCSUM_I
WSUM_E
WASUM_E
WBSUM_E
WCSUM_E
VARSUM_E
VARASUM_E
VARBSUM_E
VARCSUM_E
Internal (CE)
External
(host)
The sum of squared voltage samples from each element.
LSB = 9.4045*10^-13 VMAX² V²h
Imported Energy: W0SUM_I + W1SUM_I + W2SUM_I
Imported energy from individual wattmeter elements. Never negative.
LSB = 9.4045*10^-13 VMAX IMAX / In_8 Wh
Imported VARh:
VAR0SUM_I + VAR1SUM_I + VAR2SUM_I
Exported reactive energy from individual wattmeter elements. Never negative.
LSB = 9.4045*10^-13 VMAX IMAX / In_8 VARh
Exported Energy: W0SUM_E + W1SUM_E + W2SUM_E
Exported energy from individual wattmeter elements. Never negative.
LSB = 9.4045*10^-13 VMAX IMAX / In_8 Wh
Exported VARh:
VAR0SUM_E + VAR1SUM_E + VAR2SUM_E
Exported reactive energy from individual wattmeter elements. Never negative.
LSB = 9.4045*10^-13 VMAX IMAX / In_8 VARh
Connects the pulse generator to the WSUM or VARSUM values internally
calculated by the CE. Not selectable for PULSE3 and PULSE4 pulse generators.
Indicates that the host will provide values in the APULSER, APULSEW,
APULSE3, and APULSE4 registers and that the pulse generator should be up-
dated on the next READY interrupt..
Table 6: Pulse Sources Defined by the PULSE_SRCS Register (2/2)
WRATE (0x2D)
This register controls the rate of the pulse generation for the PULSEW, PULSER, PUSE3 and PULSE4 output pins. The
inverse pulse rate, expressed as Wh per pulse is:
Kh =
VMAX IMAX
1.5757 Wh / Pulse ^{(X = value formed by PULSE_SLOW and}
In _ 8 ⋅ SUM _ CYCLES ⋅WRATE ⋅ X
PULSE_FAST bits in the CONFIG register)
Page: 35 of 60
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