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STPM10 데이터시트(PDF) 29 Page - STMicroelectronics

부품명 STPM10
상세설명  Programmable single-phase energy metering IC with tamper detection
PDF  47 Pages
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제조업체  STMICROELECTRONICS [STMicroelectronics]
홈페이지  http://www.st.com
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STPM10 데이터시트(HTML) 29 Page - STMicroelectronics

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STPM10
Theory of operation
DocID17728 Rev 5
29/47
Address
Name
Number
of bits
Description(1)
6-bit
binary
DEC
000110
6
1
Reserved
000111
7
TMP
1
Tamper enable
001000
8
FRS
1
Power calculation when BFR=1
FRS=0: energy accumulation is frozen, power is set to zero
FRS=1: normal energy accumulation and power
computation (p=u*i)
001001
9
MSBF
1
Bit sequence output during record data reading selection:
MSBF=0: MSB first
MSBF=1: LSB first
001010
10
FUND
1
This bit swaps the information stored in the type0 (first 20
bits of DAP register) and type1 (first 20 bits of DFP register)
active energy.
FUND = 0: type 0 contains wide-band active energy, type1
contains fundamental active energy
FUND = 1: type 0 contains fundamental active energy, type1
contains wideband active energy
001100
12
LTCH
2
No-load condition threshold as product between VRMS and
IRMS:
LTCH=0 800
LTCH=1 1600
LTCH=2 3200
LTCH=3 6400
001101
13
001110
14
KMOT
2
Selection of pulses for LED:
KMOT=0 type 0 active Energy
KMOT=1 type 1 active Energy
KMOT=2 reactive energy
KMOT=3 apparent energy
001111
15
010000
16
1
Reserved
010001
17
1
Reserved
010010
18
BGTC
2
Band-gap temperature compensation bits. See Figure 17:
"Band-gap temperature variation"
010011
19
010100
20
CPH
4
4-bit unsigned data for compensation of phase error, 0
°+0.576 °. 16 values are possible with a compensation step
of 0.0384 °. When CPH=0 the compensation is 0 °, when
CPH=15 the compensation is 0.576 °
010101
21
010110
22
010111
23
011000
24
CHV
8
8-bit unsigned data for voltage channel calibration. 256
values are possible. When CHV is 0 the calibrator is at -
12.5% of the nominal value. When CHV is 255 the calibrator
is at +12.5%. The calibration step is then 0.098%
011001
25
011010
26
011011
27
011100
28
011101
29



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