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90E21 Datasheet(PDF) 42 Page - Integrated Device Technology

Part # 90E21
Description  Single-Phase High-Performance Wide-Span Energy Metering IC
PDF  57 Pages
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Manufacturer  IDT [Integrated Device Technology]
Direct Link  http://www.idt.com
Logo IDT - Integrated Device Technology

90E21 Datasheet(HTML) 42 Page - Integrated Device Technology

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90E21/22/23/24
SINGLE-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
Register
42
January 10, 2012
Pmean
L Line Mean Active Power
Qmean
L Line Mean Reactive Power
Address: 4AH
Type: Read
Default Value: 0000H
Bit
Name
Description
15 - 0
Pmean[15:0]
L line mean active power.
Complement, MSB is the sign bit. Data format is XX.XXX, which corresponds to -32.768~+32.768kW.
If current is specially handle by MCU, the power of the 90E21/22/23/24 and the actual power have the same multiple relationship
as the current.
Address: 4BH
Type: Read
Default Value: 0000H
Bit
Name
Description
15 - 0
Qmean[15:0]
L line mean reactive power.
Complement, MSB is the sign bit. Data format is XX.XXX, which corresponds to -32.768~+32.768kvar.
If current is specially handled by MCU, the power of the 90E22/24 and the actual power have the same multiple relationship as
the current.
15
14
13
12
11
10
9
8
Pmean15
Pmean14
Pmean13
Pmean12
Pmean11
Pmean10
Pmean9
Pmean8
765
432
1
0
Pmean7
Pmean6
Pmean5
Pmean4
Pmean3
Pmean2
Pmean1
Pmean0
15
14
13
12
11
10
9
8
Qmean15
Qmean14
Qmean13
Qmean12
Qmean11
Qmean10
Qmean9
Qmean8
765
432
1
0
Qmean7
Qmean6
Qmean5
Qmean4
Qmean3
Qmean2
Qmean1
Qmean0



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