ADE7878ACPZ Analog Devices Inc, ADE7878ACPZ Datasheet - Page 15

• 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

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
Table 8. Pin Function Descriptions
Pin No.
1, 10, 11, 20,
21, 30, 31, 40
2
3
4
5
6
7, 8
9, 12
13, 14
15, 16
17
Mnemonic
NC
PM0
PM1
RESET
DVDD
DGND
IAP, IAN
IBP, IBN
ICP, ICN
INP, INN
REF
IN/OUT
Description
No Connect. These pins are not connected internally.
Power Mode Pin 0. This pin, combined with PM1, defines the power mode of the
ADE7854/ADE7858/ADE7868/ADE7878, as described in Table 9.
Power Mode Pin 1. This pin defines the power mode of the ADE7854/ADE7858/ADE7868/ADE7878
when combined with PM0, as described in Table 9.
Reset Input, Active Low. In PSM0 mode, this pin should stay low for at least 10 μs to trigger a
hardware reset.
This pin provides access to the on-chip 2.5 V digital LDO. Do not connect any external active
circuitry to this pin. Decouple this pin with a 4.7 μF capacitor in parallel with a ceramic 220 nF
capacitor.
Ground Reference. This pin provides the ground reference for the digital circuitry.
Analog Inputs for Current Channel A. This channel is used with the current transducers and is
referenced in this document as Current Channel A. These inputs are fully differential voltage inputs
with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones
on Channel B and Channel C.
Analog Inputs for Current Channel B. This channel is used with the current transducers and is
referenced in this document as Current Channel B. These inputs are fully differential voltage inputs
with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones
on Channel C and Channel A.
Analog Inputs for Current Channel C. This channel is used with the current transducers and is
referenced in this document as Current Channel C. These inputs are fully differential voltage inputs
with a maximum differential level of ±0.5 V. This channel also has an internal PGA equal to the ones
on Channel A and Channel B.
Analog Inputs for Neutral Current Channel N. This channel is used with the current transducers and
is referenced in this document as Current Channel N. These inputs are fully differential voltage
inputs with a maximum differential level of ±0.5 V. This channel also has an internal PGA, different
from the ones found on the A, B, and C channels. The neutral current channel is available in the
ADE7878 and ADE7868. In the ADE7858 and ADE7854, connect these pins to AGND.
This pin provides access to the on-chip voltage reference. The on-chip reference has a nominal
value of 1.2 V. An external reference source with 1.2 V ± 8% can also be connected at this pin. In
either case, decouple this pin to AGND with a 4.7 μF capacitor in parallel with a ceramic 100 nF
capacitor. After reset, the on-chip reference is enabled.
NOTES
1. NC = NO CONNECT.
2. CREATE A SIMILAR PAD ON THE PCB UNDER THE
RESET
DGND
DVDD
EXPOSED PAD. SOLDER THE EXPOSED PAD TO
THE PAD ON THE PCB TO CONFER MECHANICAL
STRENGTH TO THE PACKAGE. DO NOT CONNECT
THE PADS TO AGND.
PM0
PM1
IAN
IAP
IBP
NC
NC
10
1
2
4
5
6
7
8
9
3
Figure 9. Pin Configuration
Rev. D | Page 15 of 96
(Not to Scale)
ADE78xx
TOP VIEW
ADE7854/ADE7858/ADE7868/ADE7878
30
29
28
27
26
25
24
23
22
21
NC
IRQ0
CLKOUT
CLKIN
VDD
AGND
AVDD
VAP
VBP
NC