FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
Figures
Figure 1: 71M6531D/F IC Functional Block Diagram ...................................................................................8
Figure 2: 71M6532D/F IC Functional Block Diagram ...................................................................................9
Figure 3: General Topology of a Chopped Amplifier ..................................................................................13
Figure 4: CROSS Signal with CHOP_E = 00...............................................................................................13
Figure 5: AFE Block Diagram (Shown for the 71M6532D/F)......................................................................14
Figure 6: Samples from Multiplexer Cycle ..................................................................................................17
Figure 7: Accumulation Interval ..................................................................................................................18
Figure 8: Interrupt Structure........................................................................................................................36
Figure 9: Optical Interface...........................................................................................................................41
Figure 10: Connecting an External Load to DIO Pins.................................................................................46
Figure 11: 3-Wire Interface. Write Command, HiZ=0. ...............................................................................49
Figure 12: 3-Wire Interface. Write Command, HiZ=1 ................................................................................49
Figure 13: 3-Wire Interface. Read Command............................................................................................49
Figure 14: 3-Wire Interface. Write Command when CNT=0......................................................................49
Figure 15: 3-Wire Interface. Write Command when HiZ=1 and WFR=1. ..................................................50
Figure 16: SPI Slave Port: Typical Read and Write operations..................................................................51
Figure 17: Functions defined by V1 ............................................................................................................51
Figure 18: Voltage, Current, Momentary and Accumulated Energy...........................................................53
Figure 19: Timing Relationship between ADC MUX, Compute Engine......................................................54
Figure 20: RTM Output Format...................................................................................................................54
Figure 21: Operation Modes State Diagram ...............................................................................................55
Figure 22: Transition from BROWNOUT to MISSION Mode when System Power Returns ......................58
Figure 23: Power-Up Timing with V3P3SYS and VBAT tied together........................................................58
Figure 24: Power-Up Timing with VBAT only..............................................................................................59
Figure 25: Wake Up Timing ........................................................................................................................60
Figure 26: MPU/CE Data Flow....................................................................................................................61
Figure 27: MPU/CE Communication...........................................................................................................61
Figure 28: Resistive Voltage Divider...........................................................................................................62
Figure 29: CT with Single Ended (Left) and Differential Input (Right) Connection .....................................62
Figure 30: Resistive Shunt (Left) and Rogowski Sensor (Right) Connection.............................................62
Figure 31: Connecting LCDs.......................................................................................................................64
Figure 32: I2C EEPROM Connection ..........................................................................................................65
Figure 33: Three-Wire EEPROM Connection.............................................................................................65
Figure 34: Connections for UART0.............................................................................................................66
Figure 35: Connection for Optical Components..........................................................................................66
Figure 36: Voltage Divider for V1................................................................................................................67
Figure 37: External Components for the RESET Pin: Push-button (Left), Production Circuit (Right) ........67
Figure 38: External Components for the Emulator Interface ......................................................................68
Figure 39: Connecting a Battery .................................................................................................................68
Figure 40: CE Data Flow: Multiplexer and ADC..........................................................................................93
Figure 41: CE Data Flow: Scaling, Gain Control, Intermediate Variables ..................................................94
Figure 42: CE Data Flow: Squaring and Summation Stages......................................................................94
Figure 43: SPI Slave Port (MISSION Mode) Timing.................................................................................103
Figure 44: Wh Accuracy, 0.1 A to 200 A at 240 V/50 Hz and Room Temperature ..................................104
Figure 45: QFN-68 Package Outline, Top and Side View ........................................................................105
Figure 46: QFN-68 Package Outline, Bottom View Table 83: QFN 68 Package Dimensions (in mm) ....105
Figure 47: Pinout for QFN-68 Package.....................................................................................................106
Figure 48: PCB Land Pattern for QFN 68 Package..................................................................................107
Figure 49: PCB Land Pattern for LQFP-100 Package..............................................................................108
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