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AD8280 Datasheet(PDF) 3 Page - Analog Devices

Part # AD8280
Description  Lithium Ion Battery Safety Monitor
PDF  24 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD8280 Datasheet(HTML) 3 Page - Analog Devices

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AD8280
Rev. C | Page 3 of 24
SPECIFICATIONS
VTOP = 7.5 V to 30 V, TA = −40°C to +105°C, unless otherwise noted.
Table 1.
Parameter
Test Conditions/Comments
Min
Typ
Max
Unit
TRIP POINT ERRORS
Undervoltage Trip Point Error
−25
+25
mV
Overvoltage Trip Point Error
−15
+15
mV
Overtemperature Trip Point Error
−25
+25
mV
Hysteresis for Overvoltage, Undervoltage,
and Overtemperature Trip Points
40
50
60
mV
CELL INPUTS (VIN0 TO VIN6)
Input Bias Current
0
20
nA
Input Offset Current
0
20
nA
Input Voltage Range
One cell
0
5
V
Input Common-Mode Range
0
Top of
stack
V
TEMPERATURE INPUTS (VT1, VT2)
Input Bias Current
−10
+10
nA
Input Voltage Range
0
5
V
OVERVOLTAGE THRESHOLD INPUT (OV)
Input Bias Current
0
20
nA
Input Voltage Range
3.6
4.6
V
UNDERVOLTAGE THRESHOLD INPUT (UV)
Input Bias Current
0
20
nA
Input Voltage Range
1.4
3.3
V
OVERTEMPERATURE THRESHOLD INPUT (OT)
Input Bias Current
0
20
nA
Input Voltage Range
1.5
4
V
INPUT/OUTPUT CHARACTERISTICS
Logic 1 Current
AIINxx, AIOUTxx
100
150
200
μA
Logic 0 Current
AIINxx, AIOUTxx
10
30
50
μA
Logic 1 Voltage Input, VIH
With respect to VBOTx
All Pins Except TOP and BOT
2.0
LDO
V
TOP and BOT Pins
VTOP
V
Logic 0 Voltage Input, VIL
With respect to VBOTx
All Pins Except TOP and BOT
0.8
V
TOP and BOT Pins
VBOT
V
Logic 1 Voltage Output, VOH
With respect to VBOTx
4.2
V
Logic 0 Voltage Output, VOL
With respect to VBOTx
0.2
V
Input Bias Current
SEL0, SEL1, DGT0, DGT1, DGT2, NPTC, ALRMSEL
1
μA
REFERENCE AND LDO
Reference Voltage
4.95
5.0
5.05
V
Reference Source Current
250
μA
LDO Voltage
0 mA ≤ LDO source current ≤ 10.0 mA
4.85
5.1
5.35
V
LDO Source Current
5.0
mA
DYNAMIC PERFORMANCE
Fault Detection (Deglitch) Time Range
Seven settings: 0.0 sec, 0.1 sec, 0.8 sec, 1.6 sec,
3.2 sec, 6.4 sec, and 12.8 sec
0.0
12.8
sec
Fault Detection (Deglitch) Accuracy
−20
+20
%
Propagation Delay Time
No capacitor on daisy chain
4.0
μs
Start-Up Time
From application enabled to LDO = 90% of
value
3.0
ms



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