Rainbow-electronics DS2788 Manual de usuario descargar pdf (Pagina 3)

DS2788

Stand-Alone Fuel-Gauge IC with

LED Display Drivers

_______________________________________________________________________________________ 3

ELECTRICAL CHARACTERISTICS: TEMPERATURE, VOLTAGE, CURRENT

= 2.5V to 5.5V, T

= -25°C to +70°C, unless otherwise noted. Typical values are at T

= +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

0 4.992 V

Voltage Error V

ERR

±50 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, 2.5V  V

 4.2V

(Notes 3 , 4)

-7.82 +12.5 µV

Accu mulated Current Offset q

OERR

0°C  T

 +70°C, 2.5V  V

 4.2V,

SNS

= V

(Notes 3, 4, 5)

-188 0

µVhr/

day

= 3.8V, T

= +25°C ±1

0°C  T

 +70°C, 2.5V  V

 4.2V ±2

Timebase Error t

ERR

±3

ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE, STANDARD

= 2.5V to 5.5V, T

= -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

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

LED Display Drivers 1

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Rainbow-electronics DS2788 Manual de usuario Pagina 3

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