ADE7878ACPZ Analog Devices Inc, ADE7878ACPZ Datasheet - Page 2

• Manufacturer Part Number: ADE7878ACPZ
• Description: IC ENERGY METERING 3PH 40LFCSP
• Manufacturer: Analog Devices Inc

Specifications of ADE7878ACPZ

• Input Impedance: 400 KOhm
• Measurement Error: 0.1%
• Voltage - I/o High: 2.4V
• Voltage - I/o Low: 0.4V
• Current - Supply: 22mA
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 40-WFQFN, CSP Exposed Pad
• Meter Type: 3 Phase
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LFCSP
• No. Of Pins: 40
• Msl: MSL 1 - Unlimited
• Peak Reflow Compatible (260 C): Yes
• Supply Voltage Min: 3V
• Rohs Compliant: Yes
• Leaded Process Compatible: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADE7854/ADE7858/ADE7868/ADE7878
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Functional Block Diagrams............................................................. 4
Specifications..................................................................................... 8
Absolute Maximum Ratings.......................................................... 14
Pin Configuration and Function Descriptions........................... 15
Typical Performance Characteristics ........................................... 17
Test Circuit ...................................................................................... 19
Terminology .................................................................................... 20
Power Management........................................................................ 21
Theory of Operation ...................................................................... 26
REVISION HISTORY
2/11—Rev. C to Rev. D
Changes to Figure 1.......................................................................... 4
Changes to Figure 2.......................................................................... 5
Changes to Figure 3.......................................................................... 6
Changes to Figure 4.......................................................................... 7
Changes to Table 2............................................................................ 8
Changed SCLK Edge to HSCLK Edge, Table 5........................... 13
Change to Current Channel HPF Section................................... 28
Change to di/dt Current Sensor and Digital Integrator Section
Changes to Digital Signal Processor Section .............................. 39
Changes to Figure 59...................................................................... 44
Changes to Figure 62...................................................................... 47
........................................................................................................... 30
Timing Characteristics .............................................................. 11
Thermal Resistance .................................................................... 14
ESD Caution................................................................................ 14
PSM0—Normal Power Mode (All Parts)................................ 21
PSM1—Reduced Power Mode (ADE7868, ADE7878 Only) 21
PSM2—Low Power Mode (ADE7868, ADE7878 Only) ....... 21
PSM3—Sleep Mode (All Parts) ................................................ 22
Power-Up Procedure.................................................................. 24
Hardware Reset........................................................................... 24
Software Reset Functionality .................................................... 25
Analog Inputs.............................................................................. 26
Analog-to-Digital Conversion.................................................. 26
Current Channel ADC............................................................... 27
di/dt Current Sensor and Digital Integrator .............................. 29
Voltage Channel ADC ............................................................... 30
Rev. D | Page 2 of 96
Silicon Anomaly ............................................................................. 73
Registers List ................................................................................... 75
Outline Dimensions ....................................................................... 93
Changes to Figure 65...................................................................... 49
Changes to Figure 66...................................................................... 52
Changes to Line Cycle Reactive Energy Accumulation Mode
Section and to Figure 67 ................................................................ 53
No Load Detection Based On Total Active, Reactive Powers
Section.............................................................................................. 61
Change to Equation 50 .................................................................. 63
Changes to the HSDC Interface Section ..................................... 70
Changes to Figure 87 and Figure 88............................................. 71
Changes to Figure 89...................................................................... 72
Changes to Table 30 ....................................................................... 77
Changing Phase Voltage Datapath........................................... 31
Power Quality Measurements................................................... 32
Phase Compensation ................................................................. 37
Reference Circuit........................................................................ 39
Digital Signal Processor............................................................. 39
Root Mean Square Measurement............................................. 40
Active Power Calculation .......................................................... 44
Reactive Power Calculation—ADE7858, ADE7868, ADE7878
Only.............................................................................................. 49
Apparent Power Calculation..................................................... 54
Waveform Sampling Mode ....................................................... 57
Energy-to-Frequency Conversion............................................ 57
No Load Condition .................................................................... 61
Checksum Register..................................................................... 63
Interrupts..................................................................................... 64
Serial Interfaces .......................................................................... 65
ADE7878 Evaluation Board...................................................... 72
Die Version.................................................................................. 72
ADE7854/ADE7858/ADE7868/ADE7878 Functionality
Issues ............................................................................................ 73
Functionality Issues.................................................................... 73
Section 1. ADE7854/ADE7858/ADE7868/ADE7878
Functionality Issues.................................................................... 74
Ordering Guide .......................................................................... 93