www.ti.com Actual Size(3,10 mm x 4,50 mm)TPS2110TPS2111SLVS443 – DECEMBER 2002AUTOSWITCHING POWER MUXFEATURESDTwo-Input, One-Output Power MultiplexerAPPLICATIONSDDDDDDDPCsPDAsDigital CamerasModemsCell phonesDigital RadiosMP3 PlayersPW PACKAGE(TOP VIEW)DDDDLow Operating Current . . . . 55-µA TypDAdjustable Current LimitDControlled Output Voltage Transition Times,Limits Inrush Current and Minimizes OutputVoltage Hold-Up CapacitanceWith Low rDS(on) Switches:– 84 mΩ Typ (TPS2111)– 120 mΩ Typ (TPS2110)Reverse and Cross-Conduction BlockingWide Operating Voltage Range . . . .2.8 V to5.5 VLow Standby Current . . . . 0.5-µA TypDDDDCMOS and TTL Compatible Control InputsManual and Auto-Switching Operating ModesThermal ShutdownAvailable in a TSSOP-8 PackageD0D1VSNSILIM12348765IN1OUTIN2GNDDESCRIPTIONThe TPS211x family of power multiplexers enables seamless transition between two power supplies, such as a battery anda wall adapter, each operating at 2.8–5.5 V and delivering up to 1 A. The TPS211x family includes extensive protectioncircuitry, including user-programmable current limiting, thermal protection, inrush current control, seamless supplytransition, cross-conduction blocking, and reverse-conduction blocking. These features greatly simplify designing powermultiplexer applications.TYPICAL APPLICATIONIN1: 2.8 – 5.5 VTPS2110/11EN1234RILIMIN2: 2.8 – 5.5 VD0D1VSNSILIMIN1OUTIN2GND8765CLRLC10.1 µFC20.1 µFPlease be aware that an important notice concerning availability, standard warranty, and use in critical applications of TexasInstrumentssemiconductor products and disclaimers thereto appears at the end of this data sheet.PRODUCTION DATA information is current as of publication date. Productsconform to specifications per the terms of Texas Instruments standard warranty.Production processing does not necessarily include testing of all parameters.Copyright 2002, Texas Instruments Incorporatedhttp://oneic.com/TPS2110TPS2111SLVS443 – DECEMBER 2002www.ti.comThese devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam duringstorage or handling to prevent electrostatic damage to the MOS gates.AVAILABLE OPTIONSFEATURECurrent Limit Adjustment RangeSwitchingmodesSwitching modesSwitch Status OutputPackageManualAutomaticTPS21100.31–0.75AYesYesNoTSSOP-8TPS21110.63–1.25AYesYesNoTSSOP-8TPS21120.31–0.75ANoYesYesTSSOP-8TPS21130.63–1.25ANoYesYesTSSOP-8TPS21140.31–0.75AYesYesYesTSSOP-8TPS21150.63–1.25AYesYesYesTSSOP-8ORDERING INFORMATIONTA–40°CC to 85to85°CPACKAGETSSOP8(PW)TSSOP-8 (PW)ORDERING NUMBER(1)TPS2110PWTPS2111PWMARKINGS21102111(1)The PW package is available taped and reeled. Add an R suffix to the device type (e.g., TPS2110PWR) to indicate tape and reel.PACKAGE DISSIPATION RATINGSPACKAGETSSOP-8 (PW)DERATING FACTOR ABOVETA = 25°C3.87 mW/°CTA ≤ 25°CPOWER RATING386.84 mWTA = 70°CPOWER RATING212.76 mWTA = 85°CPOWER RATING1.73 mWABSOLUTE MAXIMUM RATINGSover operating free-air temperature range unless otherwise noted(1)TPS2110, TPS2111Input voltage range at pins IN1, IN2, D0, D1, VSNS, ILIM(2)Output voltage range, VO(OUT)(2)Continuous output current, IContinuousoutputcurrentIOContinuous total power dissipationOperating virtual junction temperature range, TJStorage temperature range, TstgTPS2110TPS2111–0.3 V to 6 V–0.3 V to 6 V0.9 A1.5 ASee Dissipation Rating Table–40°C to 125°C–65°C to 150°CLead temperature soldering 1,6 mm (1/16 inch) from case for 10 seconds260°C(1)Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, andfunctional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is notimplied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.(2)All voltages are with respect to GND.RECOMMENDED OPERATING CONDITIONSMINInput voltage at IN1, VInputvoltageatIN1VI(IN1)Input voltage at IN2, VInputvoltageatIN2VI(IN2)Input voltage, VI(DO), VI(D1), VI(VSNS)Current limit adjustment range, ICtliitdjttIO(OUT)Operating virtual junction temperature, TJTPS2110TPS2111VI(IN2) ≥ 2.8 VVI(IN2) < 2.8 VVI(IN1) ≥ 2.8 VVI(IN1) < 2.8 V1.52.81.52.800.310.63–40MAXUNIT5.55.55.55.55.50.751.25125VVVA°CELECTROSTATIC DISCHARGE (ESD) PROTECTIONMINHuman body modelCDM2MAXUNIT2500kVVhttp://oneic.com/www.ti.comTPS2110TPS2111SLVS443 – DECEMBER 2002ELECTRICAL CHARACTERISTICS over recommended operating junction temperature range, VI(IN1) = VI(IN2) = 5.5 V, RILIM = 400 Ω (unless otherwise noted)TPS2110TPS2111PARAMETERTESTCONDITIONSTEST CONDITIONSMINTYPMAXMINTYPMAXPOWER SWITCHTJ = 2525°C,CIL = 500 mA=500mATJ = 125125°C,CIL = 500 mA=500mAVI(IN1) = VI(IN2) = 5.0 VVI(IN1) = VI(IN2) = 3.3 VVI(IN1) = VI(IN2) = 2.8 VVI(IN1) = VI(IN2) = 5.0 VVI(IN1) = VI(IN2) = 3.3 VVI(IN1) = VI(IN2) = 2.8 V120120120140140140220220220848484110110110150150150mΩmΩUNITrDS(on)DS()(1)Drain-sourceDionstateresistanceon-state resistance(INx–OUT)(1)The TPS211x can switch a voltage as low as 1.5 V as long as there is a minimum of 2.8 V at one of the input power pins. In this specific case,the lower supply voltage has no effect on the IN1 and IN2 switch on-resistances.PARAMETERLOGIC INPUTS (D0 AND D1)VIH High-level input voltageVIL Low-level input voltageInputcurrentatD0orD1Input current at D0 or D1D0 or D1 = High, sink currentD0 or D1 = Low, source currentD1 = High, D0 = Low (IN1 active), VI(IN1) = 5.5 V, VI(IN2) = 3.3 V,IO(OUT) = 0 AD1 = High, D0 = Low (IN1 active), VI(IN1) = 3.3 V, VI(IN2) = 5.5 V,IO(OUT) = 0 AD0 = D1 = Low (IN2 active), VI(IN1) = 5.5 V, VI(IN2) = 3.3 V,IO(OUT) = 0 AD0 = D1 = Low (IN2 active), VI(IN1) = 3.3 V, VI(IN2) = 5.5 V,IO(OUT) = 0 AD1 = High, D0 = Low (IN1 active), VI(IN1) = 5.5 V, VI(IN2) = 3.3 V,IO(OUT) = 0 AD1 = High, D0 = Low (IN1 active), VI(IN1) = 3.3 V, VI(IN2) = 5.5 V,IO(OUT) = 0 AD0 = D1 = Low (IN2 active), VI(IN1) = 5.5 V, VI(IN2)= 3.3 V,IO(OUT) = 0 AD0 = D1 = Low (IN2 active), VI(IN1) = 3.3 V, VI(IN2) = 5.5 V,IO(OUT) = 0 AD0 = D1 = High (inactive), VI(IN1) = 5.5 V, VI(IN2) = 3.3 V,IO(OUT) = 0 AD0 = D1 = High (inactive), VI(IN1) = 3.3 V, VI(IN2) = 5.5 V,IO(OUT) = 0 AD0 = D1 = High (inactive), VI(IN1) = 5.5 V, VI(IN2) = 3.3 V,IO(OUT) = 0 AD0 = D1 = High (inactive), VI(IN1) = 3.3 V, VI(IN2) = 5.5 V,IO(OUT) = 0 AD0 = D1 = High (inactive), VI(IN1) = 5.5 V, IN2 open,VO(OUT) = 0 V (shorted), TJ = 25°CD0 =D1= High (inactive), VI(IN2) = 5.5 V, IN1 open,VO(OUT) = 0 V (shorted), TJ = 25°CD0 = D1 = High (inactive), VI(INx) = 0 V, VO(OUT) = 5.5 V, TJ = 25°C0.51.420.715VVµATEST CONDITIONSMINTYPMAXUNITSUPPLY AND LEAKAGE CURRENTS5519012µA751175µA1550.512902µA11µA0.50.10.10.32555µAµAµASuly current from IN1Supply current from IN1(operating)Suly current from IN2Supply current from IN2(operating)Quiescent current from IN1(STANDBY)Quiescent current from IN2(STANDBY)Forward leakage current from IN1(measured from OUT to GND)Forward leakage current from IN2(measured from OUT to GND)Reverse leakage current to INx(measured from INx to GND)3http://oneic.com/TPS2110TPS2111SLVS443 – DECEMBER 2002www.ti.comELECTRICAL CHARACTERISTICS Continuedover recommended operating junction temperature range, VI(IN1) = VI(IN2) = 5.5 V, RILIM = 400 Ω (unless otherwise noted)PARAMETERCURRENT LIMIT CIRCUITTPS2110CurrentlimitaccuracyCurrent limit accuracyTPS2111tdCurrent limit settling time(1)Input current at ILIM(1)Not tested in production.PARAMETERVSNS COMPARATORVSNSthresholdvoltageVSNS threshold voltageVSNS comparator hysteresis(1)Deglitch of VSNS comparator (both ↑↓)(1)Input currentUVLOIN1andIN2UVLOIN1 and IN2 UVLOIN1 and IN2 UVLO hysteresis(1)Internal VInternalVDD UVLO (the higher of IN1 and IN2)UVLO(thehigherofIN1andIN2)Internal VDD UVLO hysteresis(1)UVLO deglitch for IN1, IN2(1)(1)Not tested in production.PARAMETERREVERSE CONDUCTION BLOCKINGMinimum output-to-input voltagedifference to block switchingD0 = D1 = high, VI(INx) = 3.3 V. Connect OUT to a 5 Vsupply through a series 1-kΩ resistor. Let D0 = low.Slowly decrease the supply voltage until OUT connectsto IN1.TEST CONDITIONSTPS211x is in current limit.TPS211x is in current limit.TEST CONDITIONSMINTYPMAXUNITFalling edgeRising edge30Falling edgeFalling edgeRising edge302.41.151.251.30572.532.58501102.8751.3565VmVVmVµs0 V≤ VI(VSNS)≤ 5.5 VVI(VSNS) ↑VI(VSNS) ↓0.780.7353090–11500.80.7550.820.775602201VmVµsµATEST CONDITIONSMINTYPMAXUNITRILIM = 400 ΩRILIM = 700 ΩRILIM = 400 ΩRILIM = 700 ΩTime for short–circuit output current tosettle within 10% of its steady state value.VI(ILIM) = 0 V, IO(OUT) = 0 A–150.510.300.950.470.630.361.250.71100.800.501.560.99msµAATEST CONDITIONSMINTYPMAXUNIT∆VO(I_block)80100120mVPARAMETERTHERMAL SHUTDOWNThermal shutdown threshold(1)Recovery from thermal shutdown(1)Hysteresis(1)IN2–IN1 COMPARATORSHysteresis of IN2–IN1 comparatorDeglitch of IN2–IN1 comparator, (both ↑↓)(1)(1)Not tested in production.MIN135125TYPMAXUNIT°C100.1901500.2220Vµs4http://oneic.com/www.ti.comTPS2110TPS2111SLVS443 – DECEMBER 2002SWITCHING CHARACTERISTICS over recommended operating junction temperature range, VI(IN1) = VI(IN2) = 5.5 V, RILIM = 400 Ω (unless otherwise noted)TPS2110TPS2111PARAMETERTESTCONDITIONSTEST CONDITIONSMINTYPMAXMINTYPMAXPOWER SWITCHtrOutput rise time froman enable(1)Output fall time froma disable(1)VI(IN1) = VI(IN2) = 5 VTJ = 25°C, CL = 1 µF,IL = 500 mA,See Figure 1(a)TJ = 25°C, CL = 1 µF,IL = 500 mA,See Figure 1(a)TJ = 125°C, CL = 10 µF,IL = 500 mA[Measure transition timeas10–90%as 1090% rise time orrisetimeorfrom 3.4 V to 4.8 V onVO(OUT)],See Figure 1(b)TJ = 25°C, CL = 10 µF,IL = 500 mA,See Figure 1(a)TJ = 25°C, CL = 10 µF,IL = 500 mA,See Figure 1(a)0.51.01.511.83msUNITtfVI(IN1) = VI(IN2) = 5 VIN1 to IN2 transition,VI(IN1) = 3.3 V,VI(IN2) = 5 VIN2 to IN1 transition,VI(IN1) = 5 V,VI(IN2) = 3.3 VVI(IN1) = VI(IN2) = 5 VMeasured from enable to10% of VO(OUT)VI(IN1) = VI(IN2) = 5 V,Measured from disableto 90% of VO(OUT)Logic 1 to Logic 0transition on D1,VI(IN1) = 1.5 V,VI(IN2) = 5 V,VI(D0) = 0 V,Measured from D1 to10% of VO(OUT)Logic 0 to Logic 1transition on D1,VI(IN1) = 1.5V,VI(IN2) = 5V,VI(D0) = 0 V,Measured from D1 to90% of VO(OUT)0.350.50.70.512ms40604060µsttTransition timeTransitiontime(1)40604060tPLH1Turn-on propagationdelay from enable(1)Turn-off propagationdelay from adisable(1)0.51mstPHL135mstPLH2Switch-over risingpropagation delay(1)TJ = 25°C, CL = 10 µF,IL = 500 mA,See Figure 1(c)0.1710.171mstPHL2Switch-over fallingpropagation delay(1)TJ = 25°C, CL = 10 µF,IL = 500 mA,See Figure 1(c)23102510ms(1)Not tested in production.5http://oneic.com/TPS2110TPS2111SLVS443 – DECEMBER 2002www.ti.comTRUTH TABLED1000011D0011101VI(VSNS) > 0.8VXYESNONOXXVI(IN2) > VI(IN1)XXNOYESXXOUT(1)IN2IN1IN1IN2IN1Hi-Z(1)The under-voltage lockout circuit causes the output to go Hi-Z if theselected power supply does not exceed the IN1/IN2 UVLO, or if neitherof the supplies exceeds the internal VDD UVLO.Terminal FunctionsTERMINALNAMED0D1GNDIN1IN2ILIMOUTVSNSNO.125873I/OIIIIIIOIDESCRIPTIONTTL and CMOS compatible input pins. Each pin has a 1-µA pull-up. The truth table shown above illustrates thefunctionality of D0 and D1.GroundPrimary power switch input. The IN1 switch can be enabled only if the IN1 supply is above the UVLO threshold and atleast one supply exceeds the internal VDD UVLO.Secondary power switch input. The IN2 switch can be enabled only if the IN2 supply is above the UVLO threshold andat least one supply exceeds the internal VDD UVLO.A resistor RILIM from ILIM to GND sets the current limit IL to 250/RILIM and 500/RILIM for the TPS2110 and TPS2111,respectively.Power switch outputIn the auto-switching mode (D0 = 1, D1 = 0), an internal power FET connects OUT to IN1 if the VSNS voltage is greaterthan 0.8 V. Otherwise, the FET connects OUT to the higher of IN1 and IN2. The truth table shown above illustrates thefunctionality of VSNS.6http://oneic.com/www.ti.comTPS2110TPS2111SLVS443 – DECEMBER 2002FUNCTIONAL BLOCK DIAGRAM1 µA1 µAInternal VDDVf = 0 VVf = 0 VQ1IO(OUT)7OUTIN18Q2IN26VDDULVOIN2ULVOIN1ULVOCross-ConductionDetectorChargePumpk ×IO(OUT)TPS2110: k = 0.2%TPS2111: k = 0.1%0.5 V_+4ILIM+_0.6 V++_EN1Q1 is ONVO(OUT) > VI(INx)100 mV+EN2Q2 is ONUVLO (VDD)UVLO (IN2)UVLO (IN1)D0D1VSNS1230.8 VD0D1ControlLogic+_ThermalSenseEN1+_VI(VSNS) >0.8 V+_IN2IN1GND57http://oneic.com/TPS2110TPS2111SLVS443 – DECEMBER 2002www.ti.comPARAMETER MEASUREMENT INFORMATIONVO(OUT)0 V90%10%trtPLH1DO–D1Switch OffSwitch Enabled(a)Switch Off90%10%tftPHL1VO(OUT)3.3 VDO–D1Switch #1 Enabled4.8 V3.4 Vtt5 VSwitch #2 Enabled(b)5 V1.85 VVO(OUT)1.5 V4.65 VtPLH2DO–D1Switch #1 EnabledSwitch #2 Enabled(c)tPHL2Switch #1 EnabledFigure 1. Propagation Delays and Transition Timing Waveforms8http://oneic.com/www.ti.comTPS2110TPS2111SLVS443 – DECEMBER 2002TYPICAL CHARACTERISTICSOUTPUT SWITCHOVER RESPONSEVI(DO)2V/Div5 VTPS2111PW0.1 µF87651µF50 Ωf = 28 Hz78% Duty Cycle1234400 ΩVI(D1)2V/DivD0D1VSNSILIMIN1OUTIN2GNDVO(OUT)2V/Div3.3 V0.1 µFt – Time – 1 ms/divOutput Switchover Response Test CircuitFigure 2OUTPUT TURN-ON RESPONSEVI(DO)2V/Div5 Vf = 28 Hz78% Duty CycleTPS2111PW1234400 Ω3.3 VD0D1VSNSILIMIN1OUTIN2GND87651µF50 Ω0.1 µFVI(D1)2V/DivVO(OUT)2V/Div0.1 µFOutput Turn-On Response Test Circuitt – Time – 2 ms/divFigure 39http://oneic.com/TPS2110TPS2111SLVS443 – DECEMBER 2002www.ti.comTYPICAL CHARACTERISTICSOUTPUT SWITCHOVER VOLTAGE DROOPVI(DO)2V/Div5 VTPS2111PWf = 580 Hz90% Duty Cycle123CL = 1 µF4400 ΩD0D1VSNSILIMIN1OUTIN2GND8765CL50 Ω0.1 µFVI(D1)2V/DivVO(OUT)2V/DivCL = 0 µF0.1 µFOutput Switchover Voltage Droop Test Circuitt – Time – 40 µs/divFigure 410http://oneic.com/
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