STEVAL-IPE010V1 STMicroelectronics, STEVAL-IPE010V1 Datasheet - Page 29

• Manufacturer Part Number: STEVAL-IPE010V1
• Description: KIT DEMO ENERGY METER STPMC1/S1
• Manufacturer: STMicroelectronics
• Type: Other Power Managementr

Specifications of STEVAL-IPE010V1

• Main Purpose: Power Management, Energy/Power Meter
• Embedded: No
• Utilized Ic / Part: STPMC1, STPMS1
• Maximum Operating Temperature: + 85 C
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Secondary Attributes: -
• Primary Attributes: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: STPMC1, STPMS1
• Other names: 497-10754

STPMC1
Table 14.
BCS
0
1
Bit BCS is set according to
Tamper conditions
with ( i
Example 5: 3-ph system - BCS = 0
I
I
X
X
= I
= I
Let us consider a three-phase, four wires system where the RMS values of the current
applied are:
I
I
I
I
The sum of all instantaneous currents (i
there is a tamper condition.
The STPMC1 calculates this sum and put its RMS value divided by four (called sIRMS)
into register DMN (see paragraph 9.17.2).
This value should always be zero (or very close).
In our case:
The currents are shown in
R
S
T
N
R
S
= 4.4 A
= 5 A
= 5 A
= 0 A
X
+ I
+ I
)
RMS
T
S
+ I
SYS = 0, 1, 2, 3, 4, 7
= (i
∑
∑
T
+ I
R
i
i
X
X
+ i
N
RMS
RMS
S
+ i
for SYS = 5, 6
for SYS = 0, 1, 2, 3, 4, 7
T
∑
∑
Table 14
+ i
sIRMS
8
8
I
I
Doc ID 15728 Rev 4
N
X
X
Figure 11
)
RMS
⎛
⎜
⎝
∑
below.
i
4
X
R
⎞
⎟
⎠
RMS
+ i
S
+ i
7
9
7
9
. 0
I
I
T
S
S
149967
+ i
I
I
N
T
T
) should always be zero, unless
A
9
7
9
7
I
I
S
S
SYS = 5, 6
or
or
Theory of operation
or
7
9
7
9
I
I
T
T
I
I
S
S
9
9
7
7
29/77
I
I
T
T