Rainbow-electronics DS2781 Manual de usuario descargar pdf (Pagina 3)

DS2781: Two-Cell Standalone Fuel Gauge IC

3 of 30

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Voltage Full-Scale V

0 9.9902 V

Voltage Error V

ERR

±100 mV

Current Resolution I

LSB

1.56 µV

Current Full-Scale I

±51.2 mV

Current Gain Error I

GERR

(Note 2) ±1

% Full-

Scale

Current Offset Error I

OERR

0°C ≤ T

≤ +70°C,

(Note 4)

- 7.82 + 12.5 µV

Accumulated Current Offset q

OERR

0°C ≤ T

≤ +70°C,

VSNS = VSS (Notes 3, 4)

- 188 + 0

µVhr/

day

= +25°C, V

PLS

= 7.6V ±1

Timebase Error t

ERR

±2

ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE, STANDARD

PLS

= 2.5V to 10V, T

= -20°C to +70°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Time Slot t

SLOT

60 120

Recovery Time t

REC

Write-0 Low Time t

LOW0

60 120

Write-1 Low Time t

LOW1

1 15

Read Data Valid t

RDV

Reset Time High t

RSTH

480

Reset Time Low t

RSTL

480 960

Presence Detect High t

PDH

15 60

Presence Detect Low t

PDL

60 240

ELECTRICAL CHARACTERISTICS: 1-WIRE INTERFACE, OVERDRIVE

PLS

= 2.5V to 10V, T

= -20°C to +70°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Time Slot t

SLOT

6 16

Recovery Time t

REC

Write-0 Low Time t

LOW0

6 16

Write-1 Low Time t

LOW1

1 2

Read Data Valid t

RDV

Reset-Time High t

RSTH

Reset-Time Low t

RSTL

48 80

Presence-Detect High t

PDH

2 6

Presence-Detect Low t

PDL

8 24

1 2 3 4 5 6 7 8 ... 29 30

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Rainbow-electronics DS2781 Manual de usuario Pagina 3

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