ATM90E32AS-AU-R datasheet(3/84 Pages) ATMEL

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M90E32AS [DATASHEET]

Atmel-46003B-SE-M90E32AS-Datasheet_02122015

FEATURES .......................................................................................................................................... 1

APPLICATION ..................................................................................................................................... 2

GENERAL DESCRIPTION................................................................................................................... 2

BLOCK DIAGRAM............................................................................................................................... 2

1 PIN ASSIGNMENT .......................................................................................................................... 7

2 PIN DESCRIPTION .......................................................................................................................... 8

3 FUNCTION DESCRIPTION ........................................................................................................... 10

3.1 POWER SUPPLY ...................................................................................................................................................10

3.2 CLOCK ...................................................................................................................................................................10

3.3 RESET ....................................................................................................................................................................10

3.3.1 RESET Pin .................................................................................................................................................. 10

3.3.2 Power On Reset (POR) ............................................................................................................................. 10

3.3.3 Software Reset .......................................................................................................................................... 10

3.4 ANALOG/DIGITAL CHANNEL MAPPING ............................................................................................................11

3.5 METERING FUNCTION .........................................................................................................................................12

3.5.1 Theory of Energy Registers ..................................................................................................................... 12

3.5.2 Energy Registers ....................................................................................................................................... 13

3.5.3 Energy Pulse Output ................................................................................................................................. 14

3.5.4 Startup and No-load Power ...................................................................................................................... 14

3.6 MEASUREMENT FUNCTION ................................................................................................................................16

3.6.1 Active/ Reactive/ Apparent Power ........................................................................................................... 16

3.6.2 Fundamental / Harmonic Active Power ................................................................................................... 16

3.6.3 Mean Power Factor (PF) ........................................................................................................................... 16

3.6.4 Voltage / Current RMS .............................................................................................................................. 16

3.6.5 Phase Angle ............................................................................................................................................... 17

3.6.6 Frequency .................................................................................................................................................. 17

3.6.7 Temperature .............................................................................................................................................. 17

3.6.8 Peak Value ................................................................................................................................................. 17

3.7 POWER QUALITY MONITORING .........................................................................................................................18

3.7.1 Instantaneous Signal Monitoring ............................................................................................................ 18

3.7.2 Instantaneous Signal Related Status And Events ................................................................................. 19

3.7.3 Frequency Monitoring Related Status And Events ................................................................................ 20

3.7.4 Zero-Crossing Detection .......................................................................................................................... 20

3.7.5 Neutral Line Overcurrent Detection ........................................................................................................ 20

3.7.6 Phase Sequence Error Detection ............................................................................................................ 20

3.8 POWER MODE ......................................................................................................................................................21

3.8.1 Normal Mode (N Mode) ............................................................................................................................. 21

3.8.2 Idle Mode (I Mode) ..................................................................................................................................... 22

3.8.3 Detection Mode (D Mode) ......................................................................................................................... 24

3.8.4 Partial Measurement mode (M Mode) ...................................................................................................... 25

3.8.5 Transition of Power Modes ...................................................................................................................... 26

3.9 EXTERNAL COMPONENT COMPENSATION .....................................................................................................27

3.9.1 Gain Based Compensation ...................................................................................................................... 28

3.9.2 Delay/Phase Based Compensation ......................................................................................................... 29

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