Datasheet

ELECTRICALCHARACTERISTICS
TCA4311
www.ti.com ...........................................................................................................................................................................................SCPS173–DECEMBER2008
overoperatingfree-airtemperaturerange(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
PowerSupply
V
CC
Positivesupplyvoltage2.75.5V
I
CC
SupplycurrentV
CC
=5.5V,V
SDAIN
=V
SCLIN
=0V5.17mA
Supplycurrentinshutdown
I
SD
V
EN
=0V0.1µA
mode
Start-UpCircuitry
V
PRE
PrechargevoltageSDA,SCLfloating0.811.2V
t
IDLE
Busidletime5095150µs
V
EN
ENthresholdvoltage0.5×V
CC
0.9×V
CC
V
V
DIS
DisablethresholdvoltageENPin0.1×V
CC
0.5×V
CC
V
I
EN
ENinputcurrentENfrom0VtoV
CC
±0.1±1µA
t
EN
Enabletime95µs
Disabletime(ENto
t
DIS
30ns
READY)
SDAINtoREADYdelay
t
STOP
1.2µs
afterSTOP
SCLOUT/SDAOUTto
t
READY
0.8µs
READY
READYOFFstateleakage
I
OFF
±0.1µA
current
V
OL
READYoutputlowvoltageI
PULLUP
=3mA0.4V
Rise-TimeAccelerators
Transientboostedpull-up
I
PULLUPAC
PositivetransitiononSDA,SCL,V
CC
=2.7V,12mA
current
Input-OutputConnection
V
OS
Input-outputoffsetvoltage10kΩtoV
CC
onSDA,SCL,V
CC
=3.3V,
(1)
0100175mV
C
IN
Digitalinputcapacitance10pF
Outputlowvoltage,input=
V
OL
SDA,SCLpins,I
SINK
=3mA,00.4V
0V
I
I
InputleakagecurrentSDA,SCLpins=V
CC
=5.5V±5µA
(1)Theconnectioncircuitryalwaysregulatesitsoutputtoahighervoltagethanitsinput.Themagnitudeofthisoffsetvoltageasafunction
ofthepullupresistorandV
CC
voltageisshownintheTypicalPerformanceCharacteristicssection.
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