TL598MJB资料

ąąTL598PULSEĆWIDTHĆMODULATION CONTROL CIRCUITSSLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003DComplete PWM Power-Control FunctionDTotem-Pole Outputs for 200-mA Sink orDDDDDDDD OR N PACKAGE(TOP VIEW)ERRORAMP 11IN+1IN−DTCCTRTSIGNAL GNDOUT11234 56781615141312111092IN+2IN−REFOUTPUT CTRLVCCVCPOWER GNDOUT2ERRORAMP 2Source CurrentOutput Control Selects Parallel orPush-Pull OperationInternal Circuitry Prohibits Double Pulse atEither OutputVariable Dead-Time Provides Control OverTotal RangeInternal Regulator Provides a Stable 5-VReference Supply, Trimmed to 1%ToleranceOn-Board Output Current-LimitingProtectionUndervoltage Lockout for Low-VCCConditionsSeparate Power and Signal GroundsFEEDBACKdescription/ordering informationThe TL598 incorporates all the functions required in the construction of pulse-width-modulated (PWM)controlled systems on a single chip. Designed primarily for power-supply control, the TL598 provides thesystems engineer with the flexibility to tailor the power-supply control circuits to a specific application.The TL598 contains two error amplifiers, an internal oscillator (externally adjustable), a dead-time control (DTC)comparator, a pulse-steering flip-flop, a 5-V precision reference, undervoltage lockout control, and outputcontrol circuits. Two totem-pole outputs provide exceptional rise- and fall-time performance for power FETcontrol. The outputs share a common source supply and common power ground terminals, which allow systemdesigners to eliminate errors caused by high current-induced voltage drops and common-mode noise.The error amplifier has a common-mode voltage range of 0 V to VCC − 2 V. The DTC comparator has a fixedoffset that prevents overlap of the outputs during push-pull operation. A synchronous multiple supply operationcan be achieved by connecting RT to the reference output and providing a sawtooth input to CT.The TL598 device provides an output control function to select either push-pull or parallel operation. Circuitarchitecture prevents either output from being pulsed twice during push-pull operation. The output frequency1. For single-ended applications:for push-pull applications is one-half the oscillator frequency fO+2RTCTfO+1.RTCTǒǓORDERING INFORMATIONTAPDIP (N)0°C to 70°CSOIC (D)PACKAGE†Tube of 25Tube of 40Reel of 2500ORDERABLEPART NUMBERTL598CNTL598CDTL598CDRTOP-SIDEMARKINGTL598CNTL598C†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines areavailable at www.ti.com/sc/package.Please be aware that an important notice concerning availability, standard warranty, and use in critical applications ofTexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.PRODUCTION DATA information is current as of publication date.Products conform to specifications per the terms of Texas Instrumentsstandard warranty. Production processing does not necessarily includetesting of all parameters.Copyright  2003, Texas Instruments IncorporatedPOST OFFICE BOX 655303 DALLAS, TEXAS 75265•1元器件交易网www.cecb2b.com

TL598PULSEĆWIDTHĆMODULATION CONTROL CIRCUITSSLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003ąFUNCTION TABLEINPUT/OUTPUTCTRLVI = GNDVI = REFOUTPUT FUNCTIONSingle-ended or parallel outputNormal push-pull operationfunctional block diagramOUTPUT CTRL(see Function Table)13OscillatorDTCComparatorC1PWMComparator9Pulse-SteeringFlip-FlopOUT21D118VCOUT1RTCT65≈0.1 V4DTCError Amplifier1IN+1IN−2IN+2IN−FEEDBACK1216153+−1Error Amplifier+2−ReferenceRegulatorUndervoltageLockout Control10POWERGND12VCC14REF7SIGNALGND0.7 mAabsolute maximum ratings over operating free-air temperature range (unless otherwise noted)†Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 VAmplifier input voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC + 0.3 VCollector voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 VOutput current (each output), sink or source, IO 250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . mAPackage thermal impedance, θJA (see Notes 2 and 3): D package . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73°C/WN package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °COperating virtual junction temperature, TJ 150Storage temperature range, Tstg −65. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . °C to 150°C†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.NOTES:1.All voltage values, except differential voltages, are with respect to the signal ground terminal.2.Maximum power dissipation is a function of TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowableambient temperature is PD = (TJ(max) − TA)/θJA. Operating at the absolute maximum TJ of 150°C can impact reliability.3.The package thermal impedance is calculated in accordance with JESD 51-7.2POST OFFICE BOX 655303 DALLAS, TEXAS 75265•元器件交易网www.cecb2b.com

ąTL598PULSEĆWIDTHĆMODULATION CONTROL CIRCUITSSLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003recommended operating conditionsMINVCCVIIOIILCTRTfoscTASupply voltageAmplifier input voltageCollector voltageOutput current (each output), sink or sourceCurrent into feedback terminalTiming capacitorTiming resistorOscillator frequencyOperating free-air temperature0.000471.81070MAX40VCC−2402000.31050030070UNITVVVmAmAµFkΩkHz°Celectrical characteristics over recommended operating free-air temperature range, VCC = 15 V(unless otherwise noted)reference section (see Note 4)PARAMETEROutput voltage (REF)Input regulationOutput regulationOutput voltage change with temperatureShort-circuit output current§IO = 1 mAVCC = 7 V to 40 VIO = 1 mA to 10 mA∆TA = MIN to MAXREF = 0 V−10TEST CONDITIONS†TA = 25°CTA = full rangeTA = 25°CTA = 25°CTA = full range2−48MIN4.954.921TYP‡5MAX5.055.125155010UNITVmVmVmV/VmA†Full range is 0°C to 70°C.‡All typical values, except for parameter changes with temperature, are at TA = 25°C.§Duration of the short circuit should not exceed one second.NOTE 4:Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used.oscillator section, CT = 0.001 µF, RT = 12 kΩ (see Figure 1) (see Note 4)PARAMETERFrequencyStandard deviation of frequency¶Frequency change with voltageFrequency change with temperature#All values of VCC, CT, RT, TA constantVCC = 7 V to 40 V,TA = 25°C∆TA = full range∆TA = full range,CT = 0.01 µFTEST CONDITIONS†MINTYP‡100100170501012080MAXUNITkHzHz/kHzHz/kHzHz/kHz†Full range is 0°C to 70°C.‡All typical values, except for parameter changes with temperature, are at TA = 25°C.¶Standard deviation is a measure of the statistical distribution about the mean, as derived from the formula: s+Ǹn+1N*1ȍ(xn*X)2N#Effects of temperature on external RT and CT are not taken into account.NOTE 4.Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used.POST OFFICE BOX 655303 DALLAS, TEXAS 75265•3元器件交易网www.cecb2b.com

TL598PULSEĆWIDTHĆMODULATION CONTROL CIRCUITSSLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003ąelectrical characteristics over recommended operating free-air temperature range, VCC = 15 V(unless otherwise noted) (continued)error amplifier section (see Note 4)PARAMETERInput offset voltageInput offset currentInput bias currentCommon-mode input voltage rangeOpen-loop voltage amplificationUnity-gain bandwidthCommon-mode rejection ratioOutput sink current (FEEDBACK)Output source current (FEEDBACK)Phase margin at unity gainSupply-voltage rejection ratioVCC = 40 V,FEEDBACK = 0.5 VFEEDBACK = 3.5 VFEEDBACK = 0.5 V to 3.5 V,FEEDBACK = 2.5 V,∆VCC = 33 V,RL = 2 kΩRL = 2 kΩ∆VIC = 6.5 V,TA = 25°C650.3−265°100dBFEEDBACK = 2.5 VFEEDBACK = 2.5 VFEEDBACK = 2.5 VVCC = 7 V to 40 V∆VO (FEEDBACK) = 3 V,VO (FEEDBACK) = 0.5 V to 3.5 V0 toVCC−27095800800.7TEST CONDITIONSMINTYP†2250.2MAX102501UNITmVnAµAVdBkHzdBmAmA†All typical values, except for parameter changes with temperature, are at TA = 25°C.NOTE 4.Pulse-testing techniques that maintain the junction temperature as close to the ambient temperature as possible must be used.electrical characteristics over recommended operating free-air temperature range, VCC=15V(unless otherwise noted)undervoltage lockout section (see Note 4)PARAMETERThreshold voltageHysteresis§TEST CONDITIONS‡TA = 25°C∆TA = full rangeTA = 25°CTA = full rangeMIN43.510050MAX66.9UNITVmV‡Full range is 0°C to 70°C.§Hysteresis is the difference between the positive-going input threshold voltage and the negative-going input threshold voltage.NOTE 4.Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.output section (see Note 4)PARAMETERHigh-level output voltageLow-level output voltageOutput-control input currentTEST CONDITIONSVCC = 15 V,VC = 15 VVCC = 15 V,VC = 15 VVI = VrefVI = 0.4 VIO = −200 mAIO = −20 mAIO = 200 mAIO = 20 mAMIN121320.43.5100MAXUNITVVmAµANOTE 4.Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.4POST OFFICE BOX 655303 DALLAS, TEXAS 75265•元器件交易网www.cecb2b.com

ąTL598PULSEĆWIDTHĆMODULATION CONTROL CIRCUITSSLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003electrical characteristics over recommended operating free-air temperature range, VCC=15V(unless otherwise noted) (continued)dead-time control section (see Figure 1) (see Note 4)PARAMETERInput bias current (DTC)Maximum duty cycle, each outputInput threshold voltage (DTC)TEST CONDITIONSVI = 0 to 5.25 VDTC = 0 VZero duty cycleMaximum duty cycle0MIN0.4533.3VTYP†−2MAX−10UNITµA†All typical values, except for parameter changes with temperature, are at TA = 25°C.NOTE 4.Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.pwm comparator section (see Note 4)PARAMETERInput threshold voltage (FEEDBACK)DTC = 0 VTEST CONDITIONSMINTYP†3.75MAX4.5UNITVInput sink current (FEEDBACK)V(FEEDBACK) = 0.5 V0.30.7mA†All typical values, except for parameter changes with temperature, are at TA = 25°C.NOTE Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.total device (see Figure 1) (see Note 4)PARAMETERStandby supply currentTEST CONDITIONSRT = Vref,All other inputs and outputs openVCC = 15 VVCC = 40 VMINTYP†1520MAX2126UNITmAAverage supply currentDTC = 2 V15mA†All typical values, except for parameter changes with temperature, are at TA = 25°C.NOTE 4.Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.switching characteristics, TA = 25°C (see Note 4)PARAMETEROutput-voltage rise timeOutput-voltage fall timeCL = 1500 pF,See Figure 2TEST CONDITIONSVC = 15 V,VCC = 15 V,MINTYP6035MAX15075UNITnsNOTE 4.Pulse-testing techniques must be used that maintain the junction temperature as close to the ambient temperature as possible.POST OFFICE BOX 655303 DALLAS, TEXAS 75265•5元器件交易网www.cecb2b.com

TL598PULSEĆWIDTHĆMODULATION CONTROL CIRCUITSSLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003ąPARAMETER MEASUREMENT INFORMATION15 V121234560.001 µF12 kΩ7SIGNAL GNDVCCIN+IN−ERRORAMP 1ERRORAMP 2IN+IN−161550 kΩFEEDBACKDTCCTRTREFOUTPUT CTRLVCOUT1OUT2POWER GND14131110REFMAIN DEVICE TEST CIRCUIT−+ERROR-AMPLIFIER TEST CIRCUIT15 VOUTPUT 1OUTPUT 2VI−+FEEDBACKPOWER GNDOUTPUT CONFIGURATIONOutputVCTestInputsFigure 1. Test CircuitsVC90%OutputCL = 1500 pFPOWER GNDOUTPUT CONFIGURATION10%tr10%tf0 V90%OUTPUT-VOLTAGE WAVEFORMFigure 2. Switching Output Configuration and Voltage Waveform6POST OFFICE BOX 655303 DALLAS, TEXAS 75265•元器件交易网www.cecb2b.com

ąTL598PULSEĆWIDTHĆMODULATION CONTROL CIRCUITSSLVS053D − FEBRUARY 1988 − REVISED NOVEMBER 2003TYPICAL CHARACTERISTICSOSCILLATOR FREQUENCY ANDFREQUENCY VARIATION †vsTIMING RESISTANCE100 k40 kfosc− Oscillator Frequency − Hz−2%10 k4 k1 k40010040101 k−1%0%0.1 µF†Df = 1%CT = 1 µF0.01 µF0.001 µFVCC = 15 VAmplifier Voltage Amplification − dB80VCC = 15 V∆VO = 3 VTA = 25°CAMPLIFIER VOLTAGE AMPLIFICATIONvsFREQUENCY6040204 k10 k40 k100 kRT − Timing Resistance − Ω400 k1 M01 k10 k100 k1 Mf − Frequency − Hz†Frequency variation (∆f) is the change in predicted oscillatorfrequency that occurs over the full temperature range.Figure 4Figure 3POST OFFICE BOX 655303 DALLAS, TEXAS 75265•7元器件交易网www.cecb2b.com

PACKAGEOPTIONADDENDUM

www.ti.com

18-Jul-2006

PACKAGINGINFORMATION

OrderableDevice5962-9166801QEA

TL598CDTL598CDE4TL598CDRTL598CDRE4TL598CNTL598CNE4TL598MFKBTL598MJBTL598QDTL598QDRTL598QN

(1)

Status(1)OBSOLETEACTIVEACTIVEACTIVEACTIVEACTIVEACTIVEOBSOLETEOBSOLETEOBSOLETEOBSOLETEOBSOLETE

PackageTypeCDIPSOICSOICSOICSOICPDIPPDIPLCCCCDIPSOICSOICPDIP

PackageDrawing

JDDDDNNFKJDDN

PinsPackageEcoPlan(2)

Qty161616161616162016161616

4040

TBDGreen(RoHS&noSb/Br)Green(RoHS&noSb/Br)

Lead/BallFinish

CallTICUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAUCUNIPDAUCallTICallTICallTICallTICallTI

MSLPeakTemp(3)CallTI

Level-1-260C-UNLIMLevel-1-260C-UNLIMLevel-1-260C-UNLIMLevel-1-260C-UNLIMN/AforPkgTypeN/AforPkgTypeCallTICallTICallTICallTICallTI

2500Green(RoHS&

noSb/Br)2500Green(RoHS&

noSb/Br)2525

Pb-Free(RoHS)Pb-Free(RoHS)TBDTBDTBDTBDTBD

Themarketingstatusvaluesaredefinedasfollows:ACTIVE:Productdevicerecommendedfornewdesigns.

LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.

NRND:Notrecommendedfornewdesigns.Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.

PREVIEW:Devicehasbeenannouncedbutisnotinproduction.Samplesmayormaynotbeavailable.OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.

(2)

EcoPlan-Theplannedeco-friendlyclassification:Pb-Free(RoHS),Pb-Free(RoHSExempt),orGreen(RoHS&noSb/Br)-pleasecheckhttp://www.ti.com/productcontentforthelatestavailabilityinformationandadditionalproductcontentdetails.TBD:ThePb-Free/Greenconversionplanhasnotbeendefined.

Pb-Free(RoHS):TI'sterms\"Lead-Free\"or\"Pb-Free\"meansemiconductorproductsthatarecompatiblewiththecurrentRoHSrequirementsforall6substances,includingtherequirementthatleadnotexceed0.1%byweightinhomogeneousmaterials.Wheredesignedtobesolderedathightemperatures,TIPb-Freeproductsaresuitableforuseinspecifiedlead-freeprocesses.

Pb-Free(RoHSExempt):ThiscomponenthasaRoHSexemptionforeither1)lead-basedflip-chipsolderbumpsusedbetweenthedieandpackage,or2)lead-baseddieadhesiveusedbetweenthedieandleadframe.ThecomponentisotherwiseconsideredPb-Free(RoHScompatible)asdefinedabove.

Green(RoHS&noSb/Br):TIdefines\"Green\"tomeanPb-Free(RoHScompatible),andfreeofBromine(Br)andAntimony(Sb)basedflameretardants(BrorSbdonotexceed0.1%byweightinhomogeneousmaterial)

(3)

MSL,PeakTemp.--TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksoldertemperature.

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Addendum-Page1

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MECHANICAL DATA MLCC006B – OCTOBER 1996FK (S-CQCC-N**) 28 TERMINAL SHOWNLEADLESS CERAMIC CHIP CARRIER18171615141312NO. OFTERMINALS**1110287668584445220AMIN0.342(8,69)0.442(11,23)0.0(16,26)0.739(18,78)0.938(23,83)1.141(28,99)MAX0.358(9,09)0.458(11,63)0.660(16,76)0.761(19,32)0.962(24,43)1.165(29,59)MIN0.307(7,80)0.406(10,31)0.495(12,58)0.495(12,58)0.850(21,6)1.047(26,6)BMAX0.358(9,09)0.458(11,63)0.560(14,22)0.560(14,22)0.858(21,8)1.063(27,0)192021B SQ22A SQ23242526272812340.080 (2,03)0.0 (1,63)0.020 (0,51)0.010 (0,25)0.020 (0,51)0.010 (0,25)0.055 (1,40)0.045 (1,14)0.045 (1,14)0.035 (0,)0.028 (0,71)0.022 (0,54)0.050 (1,27)0.045 (1,14)0.035 (0,)4040140/D 10/96NOTES:A.B.C.D.E.All linear dimensions are in inches (millimeters).This drawing is subject to change without notice.This package can be hermetically sealed with a metal lid.The terminals are gold plated.Falls within JEDEC MS-004POST OFFICE BOX 655303 DALLAS, TEXAS 75265•元器件交易网www.cecb2b.com

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