Datasheet

90E32AS ENHANCED POLY-PHASE HIGH-PERFORMANCE WIDE-SPAN ENERGY METERING IC
4 April 2, 2013
4.2.1 SPI Slave Interface Format ............................................................................................................................................................ 32
4.2.2 Reliability Enhancement Feature .................................................................................................................................................. 32
5 REGISTER ........................................................................................................................................................................ 33
5.1 REGISTER LIST ............................................................................................................................................................................................ 33
5.2 SPECIAL REGISTERS .................................................................................................................................................................................. 40
5.2.1 Configuration Registers CRC Generation .................................................................................................................................... 40
5.2.2 IRQ and WarnOut Signal Generation ............................................................................................................................................ 41
5.2.3 Special Configuration Registers ................................................................................................................................................... 45
5.3 LOW-POWER MODES REGISTERS ............................................................................................................................................................ 48
5.3.1 Detection Mode Registers ............................................................................................................................................................. 48
5.3.2 Partial Measurement mode Registers .......................................................................................................................................... 50
5.4 CONFIGURATION AND CALIBRATION REGISTERS ................................................................................................................................ 55
5.4.1 Configuration Registers ................................................................................................................................................................ 55
5.4.2 Energy Calibration Registers ........................................................................................................................................................ 57
5.4.3 Fundamental/Harmonic Energy Calibration registers ................................................................................................................ 58
5.4.4 Measurement Calibration .............................................................................................................................................................. 59
5.4.5 EMM Status ..................................................................................................................................................................................... 59
5.5 ENERGY REGISTER .................................................................................................................................................................................... 66
5.5.1 Regular Energy Registers ............................................................................................................................................................. 66
5.5.2 Fundamental / Harmonic Energy Register ................................................................................................................................... 67
5.6 MEASUREMENT REGISTERS ..................................................................................................................................................................... 68
5.6.1 Power and Power Factor Registers .............................................................................................................................................. 68
5.6.2 Fundamental/ Harmonic Power and Voltage/ Current RMS Registers ...................................................................................... 68
5.6.3 Peak, Frequency, Angle and Temperature Registers ................................................................................................................. 69
6 ELECTRICAL SPECIFICATION ....................................................................................................................................... 71
6.1 ELECTRICAL SPECIFICATION ................................................................................................................................................................... 71
6.2 METERING/ MEASUREMENT ACCURACY ................................................................................................................................................ 73
6.2.1 Metering Accuracy ......................................................................................................................................................................... 73
6.2.2 Measurement Accuracy ................................................................................................................................................................. 74
6.3 INTERFACE TIMING ..................................................................................................................................................................................... 75
6.3.1 SPI Interface Timing (Slave Mode) ................................................................................................................................................ 75
6.4 POWER ON RESET TIMING ........................................................................................................................................................................ 76
6.5 ZERO-CROSSING TIMING ........................................................................................................................................................................... 77
6.6 VOLTAGE SAG AND PHASE LOSS TIMING .............................................................................................................................................. 78
6.7 ABSOLUTE MAXIMUM RATING .................................................................................................................................................................. 79
PACKAGE DIMENSIONS...................................................................................................................................................... 80
ORDERING INFORMATION.................................................................................................................................................. 81
DATASHEET DOCUMENT HISTORY................................................................................................................................... 81