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DS2790 Datasheet(PDF) 3 Page - Maxim Integrated Products

Part # DS2790
Description  Programmable 1-Cell Li-Ion Fuel Gauge and Protector
PDF  41 Pages
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

DS2790 Datasheet(HTML) 3 Page - Maxim Integrated Products

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DS2790 Programmable 1-Cell Li-Ion Fuel Gauge and Protector
3 of 41
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
P0.0–P0.5 Pulse Rejection
tPR
Rising and Falling
Edges
100
ns
Current Measurement Input
Range (Full Scale)
VIS1–VIS2
-64
+64
mV
Current Measurement
Resolution
ILSB
15.625
mV/RSNS
Current Measurement Offset
Error
IOERR
-7.8
+7.8
mV/RSNS
Current Measurement Gain
Error
IGERR
-0.8
+0.8
% Full
Scale
OBEN = 1
-94
0
mVh/day
Accumulated Current Offset
qCA
OBEN = 1,
RSNS = 0.015
W
-6.3
0
mAh/day
Temperature Measurement
Resolution
TLSB
0.125
oC
Temperature Measurement
Error
TERR
-3
+3
oC
Voltage Full Scale
VFS
(Note 4)
0
4.992
V
Voltage Measurement
Resolution
VLSB
4.88
mV
Voltage Measurement Error
VERR
-20
+20
mV
VIN Input Resistance
RIN
15
MΩ
Current Measurement Sample
Frequency
fSAMP
1456
Hz
Analog Timebase Frequency
fOSCA
70
KHz
VDD ≤ 4.5V, TA = 25
oC
-0.7
+0.7
Analog Timebase Error
fERR:OSCA
-2
+2
%
Filter Resistors
IS1 to SNS1, IS2 to SNS2
RKS
10
kΩ
EEPROM Copy Time
tEEC
VDD ≥ 2.8V
10
15
ms
EEPROM Copy Endurance
Data EEPROM
NEECD
VDD ≥ 2.8V , TA = 50ºC
50,000
cycles
EEPROM Copy Endurance
Program EEPROM
NEECP
VDD ≥ 2.8V , TA = 50ºC
1000
cycles
ELECTRICAL CHARACTERISTICS: PROTECTION CIRCUITRY
(2.5V
£ VDD £ 5.5V, TA = 0°C to +50°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Low: CC
VOLCC
IOL = 0.1mA,
(Note 3)
VDD + 0.1
V
Output Low: DC
VOLDC
IOL = 0.1mA,
(Note 3)
0.1
V
Output High: CC
VOHCC
IOH = -0.1mA,
(Note 3)
VOCP - 0.25
V
Output High: DC
VOHDC
IOH = -0.1mA,
(Note 3)
VOCP - 0.25
V
Output Resistance: CC, DC
RO
VOCP = 9V, VPIN = VSS
2.0
kΩ
Output Voltage: CP
VOCP
ICC + IDC ≤ 0.9
mA,
(Note 3)
8.5
9.0
9.5
V
Overvoltage Detect
VOV
OV = 01010b,
(Note 3)
4.330
4.350
4.370
V
Charge Enable
VCE
OV = 01010b,
(Note 3)
4.230
4.250
4.270
V



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