STEVAL-IPE010V1 STMicroelectronics, STEVAL-IPE010V1 Datasheet - Page 31

• 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
9.10.2
Example 6: 3-ph system - BCS = 1
Example 7: 1-ph system - BCS = 0
Example 8: 1-ph system - BCS = 1
Phase sequence is wrong (status bit BSF)
One tamper condition is that phase sequence is not correct. A 3-ph phase status bit BSF
checks the sequence of phases, which, in a three phase system is one of the following:
●
●
●
In one of the above cases BSF is cleared, otherwise bit BSF is set.
Let us consider a three-phase, four wires system where:
I
I
I
I
The tamper is evaluated because
I
In this case
sIRMS = 0,449901 A > 0,4125 A = (I
Then BCS = 1.
Let us consider a single phase systems with only S and T wires connected where
I
I
I
In this case the criterion for tamper evaluation is verified since:
(I
But BCS = 0 because
7/9 I
and
7/9 I
Let us consider the case in which:
I
I
I
Also in this case the criterion for tamper evaluation is verified:
(I
Now BCS = 1 because
7/9 I
R
S
T
R
S
T
N
R
S
T
MAX
S
T
MAX
S
S
= 5 A
= 3.2 A
= 4 A
= 3 A
= 5 A
= 5 A
= 5 A
= 0 A
+ I
+ I
+ I
T
S
S
R
T
S
S
= 180 A
= 180 A
T
T
= 3.11 A < I
= 3.88 A < I
= 3.88 A > I
+I
) = 9 A > 0,703125 A = I
) = 8 A > 0,703125 A = I
T
R
S
T
+I
N
= 13.2 A > 0,703125 A = I
S
T
T
= 5 A < 9/7 I
= 4 A < 9/7 I
= 3 A
Doc ID 15728 Rev 4
MAX
MAX
T
S
= 5.14 A
= 6.43 A
/ 256
/ 256
R
+ I
MAX
S
+I
T
/ 256
+I
N
) / 32
Theory of operation
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