Rainbow Electronics DS2788 - Manual (Page 3)

D
S
2
7
8
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Stand-Alone Fuel-Gauge IC with
LED Display Drivers
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ELECTRICAL CHARACTERISTICS: TEMPERATURE, VOLTAGE, CURRENT
(V CC = 2.5V to 5.5V, T A = -25°C to +70°C, unless otherwise noted. Typical values are at T A = +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Temperature Resolution T LSB 0.125 °C
Temperature Error T ERR ±3 °C
Voltage Resolution V LSB 4.88 mV
Voltage Full-Scale V FS 0 4.992 V
Voltage Error V ERR ±50 mV
Current Resolution I LSB 1.56 µV
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 V DD 4.2V
(Notes 3, 4)
-7.82 +12.5 µV
Accumulated Current Offset q
OERR
0°C T A +70°C, 2.5V V DD 4.2V,
V SNS = V SS (Notes 3, 4, 5)
-188 0
µVhr/
day
V DD = 3.8V, T A = +25°C ±1
0°C T A +70°C, 2.5V V DD 4.2V ±2 Timebase Error t ERR
±3
%
ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE, STANDARD
(V CC = 2.5V to 5.5V, T A = -25°C to +70°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Time Slot t SLOT 60 120 µs
Recovery Time t REC 1 µs
Write-0 Low Time t LOW0 60 120 µs
Write-1 Low Time t LOW1 1 15 µs
Read Data Valid t RDV 15 µs
Reset-Time High t RSTH 480 µs
Reset-Time Low t
RSTL
480 960 µs
Presence-Detect High t
PDH
15 60 µs
Presence-Detect Low t PDL 60 240 µs