TCA9509_13 TI1 | Alldatasheet
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V CCB EN TCA9509 RVH PACKAGE (TOP VIEW) 1 8VCCA VCCB 4 5GND EN 3 6SDAA SDAB 2 7SCLA SCLB DGK PACKAGE (TOP VIEW) TCA9509 www.ti.com SCPS225B –AUGUST 2011–REVISED JANUARY 2012 LEVEL-TRANSLATINGI2C/SMBUSBUSREPEATER Check forSamples: TCA9509 1FEATURES
- Two-Channel BidirectionalBuffer • Accommodates Standard Mode and FastMode I2C Devices and MultipleMasters• I2C Bus and SMBus Compatible
- Supports Arbitrationand Clock Stretching• OperatingSupply VoltageRange of Across Repeater2.7V to5.5V on B side
- Powered-OffHigh-Impedance I2C bus pins• OperatingVoltageRange of0.9V toVCCB – 1V on A Side • Supports 400-kHz FastI2C Bus operating speeds• Voltage-LevelTranslationFrom 0.9V to(VCCB -1V) and 2.7V to5.5V • Availablein
- Active-HighRepeater-EnableInput – 1.6mm x 1.6mm, 0.4mm height,0.5mm pitch QFN pkg• Requiresno externalpull-upresistorson lower-voltageport-A – 3mm x 3mm industrystandardMSOP pkg
- Open-Drain I2C I/O • Latch-Up Performance Exceeds 100 mA Per JESD 78,Class II• 5.5-VTolerantI2C and Enable InputSupport Mixed-Mode SignalOperation • ESD ProtectionExceeds JESD 22
- Lockup-Free Operation – 2000-V Human-Body Model (A114-A) – 1000-V Charged-DeviceModel (C101) DESCRIPTION/ORDERING INFORMATION ThisTCA9509 integratedcircuitisan I2C bus/SMBus Repeaterforuse inI2C/SMBus systems.Itcan alsoprovide bidirectionalvoltage-leveltranslation(up-translation/down-translation)between low voltages(down to0.9V) and highervoltages(2.7V to5.5V) inmixed-mode applications.ThisdeviceenablesI2C and similarbus systemsto be extended,withoutdegradationofperformanceeven duringlevelshifting. The TCA9509 buffersboththeserialdata(SDA) and theserialclock(SCL) signalson theI2C bus,thusallowing 400-pF bus capacitanceon theB-side.Thisdevicecan alsobe used toisolatetwo halvesofa bus forvoltage and capacitance. The TCA9509 has two typesof drivers– A-sidedriversand B-sidedrivers.Allinputsand B-sideI/O’s are overvoltagetolerantto 5.5V.The A-sideI/O’s are overvoltagetolerantto 5.5V when the deviceisunpowered (VCCB and/orVCCA=0V). Pleasebe aware thatan importantnoticeconcerningavailability,standardwarranty,and use incriticalapplicationsofTexas Instrumentssemiconductorproductsand disclaimerstheretoappearsattheend ofthisdatasheet. PRODUCTION DATA informationiscurrentas ofpublicationdate. Copyright© 2011–2012,Texas InstrumentsIncorporatedProductsconform to specificationsper the terms of the Texas Instrumentsstandardwarranty.Productionprocessingdoes not necessarilyincludetestingofallparameters.
SCPS225B –AUGUST 2011–REVISED JANUARY 2012 www.ti.com
ORDERING INFORMATION
ORDERABLE PARTTA PACKAGES (1)(2) TOP-SIDE MARKINGNUMBERS –40°C to85°C TCA9509RVHR RVH -QFN Tape and reel 7K –40°C to85°C TCA9509DGKR DGK -MSOP Tape and reel 7KQ (1) Package drawings,thermaldata,and symbolizationareavailableatwww.ti.com/packaging. (2) Forthemost currentpackage and orderinginformation,see thePackage OptionAddendum attheend ofthisdocument,orsee theTI websiteatwww.ti.com. DESCRIPTION/ORDERING INFORMATION (CONTINUED) The bus portB driversarecompliantwithSMBus I/Olevels,whiletheA sideuses a currentsensingmechanism todetecttheinputoroutputLOW signalwhichpreventsbus lock-up.The A sideuses a 1 mA currentsourcefor pull-upand a 200 Ω pull-downdriver.This resultsin a LOW on the A sideaccommodating smallervoltage swings.The outputpull-downon theA sideinternalbufferLOW issetforapproximately0.2V, whiletheinput thresholdoftheinternalbufferissetabout50 mV lowerthanthatoftheoutputvoltageLOW. When theA side I/OisdrivenLOW internally,theLOW isnotrecognizedas a LOW by theinput.Thispreventsa lock-upcondition fromoccurring.The outputpull-downon theB sidedrivesa hardLOW and theinputlevelissetat0.3ofSMBus orI2C-bus voltagelevelwhichenablesB sidetoconnecttoany otherI2C-bus devicesorbuffer. The TCA9509 driversarenotenabledunlessVCCA isabove 0.8V and VCCB isabove 2.5V. The enable(EN) pin can alsobe used toturnthedriverson and offundersystem control.Cautionshouldbe observedtoonlychange thestateoftheEN pinwhen thebus isidle. an
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www.ti.com SCPS225B –AUGUST 2011–REVISED JANUARY 2012 TERMINAL FUNCTIONS NO. NAME DESCRIPTION 1 VCCA A-sidesupplyvoltage(0.9VtoVCCB -1V) 2 SCLA Serialclockbus,A side. 3 SDAA Serialdatabus,A side.
4 GND Supplyground
5 EN Active-highrepeaterenableinput
6 SDAB Serialdatabus,B side.ConnecttoVCCB througha pullupresistor. 7 SCLB Serialclockbus,B side.ConnecttoVCCB througha pullupresistor. 8 VCCB B-sideand devicesupplyvoltage(2.7V to5.5V) Table1.FUNCTION TABLE INPUT FUNCTIONEN L Outputsdisabled SDAA = SDABH SCLA = SCLB Figure1. FUNCTIONAL BLOCK DIAGRAM Copyright© 2011–2012,Texas InstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLink(s):TCA9509
SCPS225B –AUGUST 2011–REVISED JANUARY 2012 www.ti.com ABSOLUTE MAXIMUM RATINGS (1) overoperatingfree-airtemperaturerange(unlessotherwisenoted) MIN MAX UNIT VCCB Supplyvoltagerange –0.5 6 V VCCA Supplyvoltagerange –0.5 6 V VI Enableinputvoltagerange(2) –0.5 6 V VI/O I2C bus voltagerange(2) –0.5 6 V IIK Inputclamp current VI< 0 –20 mA IOK Outputclamp current VO < 0 –20 Pd Max power dissipation 100 mW Tstg Storagetemperaturerange –65 150 °C (1) Stressesbeyond thoselistedunder"absolutemaximum ratings" may cause permanentdamage tothedevice.These arestressratings only,and functionaloperationofthedeviceattheseorany otherconditionsbeyond thoseindicatedunder"recommended operating conditions" isnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmay affectdevicereliability. (2) The inputnegative-voltageand outputvoltageratingsmay be exceeded iftheinputand outputcurrentratingsareobserved. THERMAL IMPEDANCE overoperatingfree-airtemperaturerange(unlessotherwisenoted) UNIT RVH package 208.99 °C/W θJA Package thermalimpedance(1) DGK package 222.9 °C/W (1) The package thermalimpedance iscalculatedinaccordancewithJESD 51-7. RECOMMENDED OPERATING CONDITIONS MIN MAX UNIT VCCA Supplyvoltage,A-sidebus 0.9(1) VCCB -1 V VCCB Supplyvoltage,B-sidebus 2.7 5.5 V SDAA, SCLA 0.7× VCCA VCCA VIH High-levelinputvoltage SDAB, SCLB 0.7× VCCB 5.5 V EN 0.7× VCCA 5.5 SDAA, SCLA –0.5 0.3 VIL Low-levelinputvoltage SDAB, SCLB –0.5 0.3× VCCB V EN –0.5 0.3× VCCA SDAA, SCLA 10 µA IOL Low-leveloutputcurrent SDAB, SCLB 6 mA TA Operatingfree-airtemperature –40 85 °C (1) Low-levelsupplyvoltage
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www.ti.com SCPS225B –AUGUST 2011–REVISED JANUARY 2012
ELECTRICAL CHARACTERISTICS
VCCB = 2.7V to5.5V,VCCA = 0.9V to(VCCB -1),TA = –40°C to85°C (unlessotherwisenoted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VIK Inputclamp voltage II= –18 mA –1.5 –0.5 V IOL = 10 μA, SDAA, SCLA VILA = VILB = 0 V, 0.18 0.25 VCCA = 0.9to1.2V VOL Low-leveloutputvoltage V IOL = 20 μA, SDAA, SCLA VILA = VILB = 0 V, 0.2 0.3 1.2V< VCCA <= (VCCB -1V) Low-levelinputvoltage VOL – VILc belowlow-leveloutput SDAA, SCLA 50 mV voltage SDA and SCL low-levelVILc SDAA, SCLA –0.5 0.15 Vinputvoltagecontention VOLB Low-leveloutputvoltage SDAB, SCLB IOL = 6 mA 0.1 0.2 V AllportA Statichigh 0.25 0.45 0.9 ICC QuiescentsupplycurrentforVCCA mA AllportA Staticlow 1.25 3 5 ICC QuiescentsupplycurrentforVCCB AllportB Statichigh 0.5 0.9 1.1 mA VI= VCCB ±1 SDAB, SCLB VI= 0.2V 10 VI= VCCA ±1 II Inputleakagecurrent SDAA, SCLA μA VI= 0.2V 10 VI= VCCB ±1 EN VI= 0.2V –10 SDAB, SCLB 10High-leveloutputleakageIOH VO = 3.6V μAcurrent SDAA, SCLA 10 C IOA I/OcapacitanceofA-side SCLA, SDAA VI= 0 V 6 6.5 7 pF C IOB I/OcapacitanceofB-side SCLB, SDAB VI= 0 V 5.5 6 6.2 pF TIMING REQUIREMENTS overrecommended operatingfree-airtemperaturerange(unlessotherwisenoted) MIN MAX UNIT tsu Setuptime,EN highbeforeStartcondition(1) 100 ns th Holdtime,EN highafterStopcondition(1) 100 ns (1) EN shouldchange stateonlywhen theglobalbus and therepeaterportareinan idlestate. Copyright© 2011–2012,Texas InstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLink(s):TCA9509
1.35 k/c87 TCA9509 SCPS225B –AUGUST 2011–REVISED JANUARY 2012 www.ti.com I2C INTERFACE TIMING REQUIREMENTS TA = –40°C to85°C (unlessotherwisenoted) VCCA VCCBPARAMETER TEST CONDITIONS MIN TYP (1) MAX UNIT(INPUT) (OUTPUT) portB toportA 88.1 88.8 89.8 portA 40.1 40.9 41.9 trise Transitiontime 1.9V 5.0V EN High ns portB 57.3 57.5 58.4 portA 14.5 16.4 17.9 tfall Transitiontime 1.9V 5.0V EN High ns portB 18.7 19.4 20.2 Propagation on PortB Maximum fMAX switching 400 KHz frequency (1) Typicalvalueswere measured withVCCA = VCCB = 2.7V atTA = 25°C, unlessotherwisenoted. PARAMETER MEASUREMENT INFORMATION PIN C L SCLA, SDAA (A 50 pFside) SDAB, SCLB (B 50 pFside)
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50% 50% VCC 0 V Input 30%30% 70%70% VCC tf tr VOL Output TCA9509 www.ti.com SCPS225B –AUGUST 2011–REVISED JANUARY 2012 A. R T terminationresistanceshouldbe equaltoZOUT ofpulsegenerators. B. C L includesprobeand jigcapacitance. C. Allinputpulsesaresuppliedby generatorshavingthefollowingcharacteristics:PRR ≤ 10 MHz, ZO = 50 Ω,slewrate ≥ 1 V/ns. D. The outputsaremeasured one ata time,withone transitionpermeasurement. E. tPLH and tPHL arethesame as tpd. Figure2. TestCircuitand VoltageWaveforms Copyright© 2011–2012,Texas InstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLink(s):TCA9509
1.1 V SDAB SCLB VCCBVCCA 10 k/c87 3.3 V SLAVE 400 kHz BUS MASTER 400 kHz 10 k/c87 10 k/c87 1.1 V 9th CLOCK PULSE — ACKNOWLEDGE 0.5□V/DIV SCL SDA TCA9509 SCPS225B –AUGUST 2011–REVISED JANUARY 2012 www.ti.com
APPLICATION INFORMATION
A typicalapplicationisshown inFigure3.Inthisexample,thesystem masterisrunningon a 1.1-VI2C bus,and theslaveisconnectedtoa 3.3-Vbus.Bothbuses runat400 kHz.Masterdevicescan be placedon eitherbus. The TCA9509 is5-V tolerant,so itdoes notrequireany additionalcircuitrytotranslatebetween 0.9-Vto5.5-V bus voltagesand 2.7-Vto5.5-Vbus voltages. When theB sideoftheTCA9509 ispulledlow by a driveron theI2C bus and thefallingedge goes below 0.3 VCCB ,itcauses theinternaldriveron theA sidetoturnon,causingtheA sidetopulldown toabout0.2V. When theA sideoftheTCA9509 falls,firsta comparatordetectsthefallingedge and causes theinternaldriveron the B sidetoturnon and pulltheB-sidepindown toground.Inordertoillustratewhat would be seen ina typical application,refertoFigure4 and Figure5.Ifthebus masterinFigure3 were towritetotheslavethroughthe TCA9509, waveforms shown inFigure4 would be observedon the B bus.Thislookslikea normal I2C bus transmission,exceptthatthehighlevelmay be as low as 0.9V, and theturnon and turnoffoftheacknowledge signalsareslightlydelayed. On theA-sidebus oftheTCA9509, theclockand datalineswould have a positiveoffsetfrom ground equalto the VOL of the TCA9509. Afterthe eighthclockpulse,the data lineispulledto the VOL of the master device, whichisveryclosetogroundinthisexample.At theend oftheacknowledge,thelevelrisesonlytothelow level setby thedriverintheTCA9509 fora shortdelay,whiletheB-bus siderisesabove 0.3VCCB and thencontinues high.Itisimportanttonotethatany arbitrationorclockstretchingeventsrequirethatthelow levelon theA-bus sideat the inputof the TCA9509 (VIL) be at or below 0.15 V to be recognizedby the TCA9509 and then transmittedtotheB-busside. Figure3. TypicalApplication Figure4. Bus A (0.9-Vto5.5-VBus) Waveform
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9th CLOCK PULSE — ACKNOWLEDGE V OF SLAVEOL
2 V/DIV
www.ti.com SCPS225B –AUGUST 2011–REVISED JANUARY 2012 Figure5. Bus B (2.7-Vto5.5-VBus) Waveform Copyright© 2011–2012,Texas InstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLink(s):TCA9509
SCPS225B –AUGUST 2011–REVISED JANUARY 2012 www.ti.com
REVISION HISTORY
Changes from Original(August 2011)toRevisionA Page
- Changed OperatingSupplyVoltageRange valueerrorinFEATURES forB side.Changed from(0.9V to5.5V on B
- Changed OperatingVoltageRange valueerrorinFEATURES forA side.Changed (2.7V toVCCB – 1 V on A side) Changes from RevisionA (October2011)toRevisionB Page
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www.ti.com 20-May-2013 Addendum-Page 1 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3) Op Temp (°C) Device Marking (4/5) Samples TCA9509DGKR ACTIVE VSSOP DGK 8 2500 Green (RoHS & no Sb/Br) CU NIPDAUAG Level-1-260C-UNLIM -40 to 85 7KQ TCA9509RVHR ACTIVE X2QFN RVH 8 5000 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 7K (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 Pack Materials-Page 1
*All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) TCA9509DGKR VSSOP DGK 8 2500 364.0 364.0 27.0 TCA9509RVHR X2QFN RVH 8 5000 202.0 201.0 28.0 TCA9509RVHR X2QFN RVH 8 5000 180.0 180.0 30.0 PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 Pack Materials-Page 2
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