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ADE7569 データシート(PDF) 7 Page - Analog Devices

部品番号 ADE7569
部品情報  Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver
PDF  152 Pages
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メーカー  AD [Analog Devices]
ホームページ  http://www.analog.com
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ADE7569 データシート(HTML) 7 Page - Analog Devices

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ADE7116/ADE7156/ADE7166/ADE7169/ADE7566/ADE7569
Rev. B | Page 7 of
152
ANALOG PERIPHERALS
Table 3.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
INTERNAL ADCs (BATTERY, TEMPERATURE, VDCIN)1
Power Supply Operating Range
2.4
3.7
V
Measured on VSWOUT
No Missing Codes2
8
Bits
Conversion Delay3
38
μs
ADC Gain
VDCIN Measurement
15.3
mV/LSB
VBAT Measurement
14.6
mV/LSB
Temperature Measurement
0.78
°C/LSB
ADC Offset
VDCIN Measurement at 3 V
206
LSB
VBAT Measurement at 3.7 V
205
LSB
Temperature Measurement at 25°C
129
LSB
VDCIN Analog Input
Maximum Signal Levels
0
3.3
V
Input Impedance (DC)
1
MΩ
Low VDCIN Detection Threshold
1.09
1.2
1.27
V
POWER-ON RESET (POR)
VDD POR
Detection Threshold
2.5
2.95
V
POR Active Timeout Period
33
ms
VSWOUT POR
Detection Threshold
1.8
2.2
V
POR Active Timeout Period
20
ms
VINTD POR
Detection Threshold
2.0
2.25
V
POR Active Timeout Period
16
ms
VINTA POR
Detection Threshold
2.05
2.25
V
POR Active Timeout Period
120
ms
BATTERY SWITCHOVER
Voltage Operating Range (VSWOUT)
2.4
3.7
V
VDD to VBAT Switching
Switching Threshold (VDD)
2.5
2.95
V
Switching Delay
10
ns
When VDD to VBAT switch activated by VDD
30
ms
When VDD to VBAT switch activated by VDCIN
VBAT to VDD Switching
Switching Threshold (VDD)
2.5
2.95
V
Switching Delay
30
ms
Based on VDD > 2.75 V
VSWOUT to VBAT Leakage Current
10
nA
VBAT = 0 V, VSWOUT = 3.43 V, TA = 25°C
LCD, CHARGE PUMP ACTIVE4
Charge Pump Capacitance Between LCDVP1 and
LCDVP2
100
nF
LCDVA, LCDVB, LCDVC Decoupling Capacitance
470
nF
LCDVA
0
1.75
V
LCDVB
0
3.5
V
1/3 bias mode
LCDVC
0
5.3
V
1/3 bias mode
V1 Segment Line Voltage
LCDVA − 0.1
LCDVA
V
Current on segment line = −2 μA
V2 Segment Line Voltage
LCDVB − 0.1
LCDVB
V
Current on segment line = −2 μA
V3 Segment Line Voltage
LCDVC − 0.1
LCDVC
V
Current on segment line = −2 μA
DC Voltage Across Segment and COMx Pin
50
mV
LCDVC − LCDVB, LCDVC − LCDVA, or
LCDVB − LCDVA



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