Datasheet

DS2780 Standalone Fuel Gauge IC
3 of 31
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Current Full-Scale I
FS
±51.2 mV
Current Gain Error I
GERR
(Note 2) ±1
% Full-
Scale
Current Offset Error I
OERR
0°C ≤ T
A
≤ +70°C,
2.5V ≤ VDD ≤ 4.2V
(Note 4)
-7.82 +12.5 µV
Accumulated Current Offset q
OERR
0°C ≤ T
A
≤ +70°C,
2.5V ≤ VDD ≤ 4.2V
VSNS = VSS, (Notes 3,
4)
-188 +0
µVhr/
day
VDD = 3.8V, T
A
= +25°C ±1
0°C ≤ T
A
≤ +70°C,
2.5V ≤ VDD ≤ 4.2V
±2
Timebase Error t
ERR
±3
%
ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE, STANDARD
(V
CC
= 2.5V to 4.5V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Time Slot t
SLOT
60 120
s
Recovery Time t
REC
1
s
Write-0 Low Time t
LOW0
60 120
s
Write-1 Low Time t
LOW1
1 15
s
Read Data Valid t
RDV
15
s
Reset Time High t
RSTH
480
s
Reset Time Low t
RSTL
480 960
s
Presence Detect High t
PDH
15 60
s
Presence Detect Low t
PDL
60 240
s
ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE, OVERDRIVE
(V
CC
= 2.5V to 4.5V, T
A
= -20°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Time Slot t
SLOT
6 16
s
Recovery Time t
REC
1
s
Write-0 Low Time t
LOW0
6 16
s
Write-1 Low Time t
LOW1
1 2
s
Read Data Valid t
RDV
2
s
Reset-Time High t
RSTH
48
s
Reset-Time Low t
RSTL
48 80
s
Presence-Detect High t
PDH
2 6
s
Presence-Detect Low t
PDL
8 24
s