MC34063ADE4中文资料

FEATURES12348765Switch CollectorSwitch EmitterTiming CapacitorGNDDriver CollectorI pkV CCComparator Inverting InputD (SOIC) OR P (PDIP) PACKAGE(TOP VIEW)DRJ (QFN) PACKAGE(TOP VIEW)V CCI pkDriver Collector†Exposed thermal pad is connected internally to GND via die attach.DESCRIPTION/ORDERING INFORMATION1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER2004–REVISED OCTOBER2005•Wide Input Voltage Range…3V to40V•Precision Internal Reference…2%•High Output Switch Current…Up to1.5A•Short-Circuit Current Limiting•Adjustable Output Voltage•Low Standby Current•Oscillator Frequency…Up to100kHzThe MC33063A and MC34063A are easy-to-use ICs containing all the primary circuitry needed for building simple dc-dc converters.These devices primarily consist of an internal temperature-compensated reference,a comparator,an oscillator,a PWM controller with active current limiting,a driver,and a high-current output switch. Thus,the devices require minimal external components to build converters in the boost,buck,and inverting topologies.The MC33063A is characterized for operation from–40°C to85°C,while the MC34063A is characterized for operation from0°C to70°C.ORDERING INFORMATIONT A PACKAGE(1)ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP–P Tube of50MC33063AP MC33063APQFN–DRJ Reel of1000MC33063ADRJR PREVIEW–40°C to85°CTube of75MC33063ADSOIC–D M33063AReel of2500MC33063ADRPDIP–P Tube of50MC34063AP MC34063APQFN–DRJ Reel of1000MC34063ADRJR PREVIEW0°C to70°CTube of75MC34063ADSOIC–D M34063AReel of2500MC34063ADR(1)Package drawings,standard packing quantities,thermal data,symbolization,and PCB design guidelines are available at/sc/package.Please be aware that an important notice concerning availability,standard warranty,and use in critical applications of TexasInstruments semiconductor products and disclaimers thereto appears at the end of this data sheet.PRODUCTION DATA information is current as of publication date.Copyright©2004–2005,Texas Instruments Incorporated Products conform to specifications per the terms of the TexasInstruments standard warranty.Production processing does notnecessarily include testing of all parameters.Switch CollectorSwitch EmitterTiming CapacitorGNDComparator Inverting InputV CCI pk SenseDrive Collector Absolute Maximum Ratings (1)1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005FUNCTIONAL BLOCK DIAGRAMover operating free-air temperature range (unless otherwise noted)MINMAX UNIT V CC Supply voltage40V V IR Comparator Inverting Input voltage range –0.340V V C(switch)Switch Collector voltage 40V V E(switch)Switch Emitter voltageV PIN1=40V40V V CE(switch)Switch Collector to Switch Emitter voltage 40V V C(driver)Driver Collector voltage 40V I C(driver)Driver Collector current 100mA I SW Switch current1.5AD package97θJA Package thermal impedance (2)(3)DRJ package TBD °C/W P package 85T J Operating virtual junction temperature 150°C T stg Storage temperature range–65150°C (1)Stresses beyond those listed under “absolute maximum ratings”may cause permanent damage to the device.These are stress ratings only,and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions”is not implied.Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.(2)Maximum power dissipation is a function of T J (max),θJA ,and T A .The maximum allowable power dissipation at any allowable ambient temperature is P D =(T J (max)–T A )/θJA .Operating at the absolute maximum T J of 150°C can affect reliability.(3)The package thermal impedance is calculated in accordance with JESD 51-7.2Recommended Operating ConditionsElectrical CharacteristicsOscillatorOutput Switch (1)ComparatorTotal Device1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005MINMAX UNIT V CC Supply voltage340V MC33063A –4085T AOperating free-air temperature°CMC34063A70V CC =5V,T A =full operating range (unless otherwise noted)(see block diagram)PARAMETERTEST CONDITIONS T A MIN TYP MAX UNIT f osc Oscillator frequency V PIN5=0V,C T =1nF 25°C 243342kHz I chg Charge current V CC =5V to 40V 25°C 243542µA I dischg Discharge currentV CC =5V to 40V 25°C 140220260µAI dischg /I chg Discharge-to-charge current ratio V PIN7=V CC 25°C 5.2 6.57.5V IpkCurrent-limit sense voltageI dischg =I chg25°C250300350mV PARAMETERTEST CONDITIONST A MINTYP MAX UNIT Saturation voltage –V CE(sat)I SW =1A,pins 1and 8connected Full range 1 1.3V Darlington connection Saturation voltage –I SW =1A,R PIN8=82Ωto V CC ,V CE(sat)Full range 0.450.7Vnon-Darlington connection (2)forced β∼20h FE DC current gainI SW =1A,V CE =5V 25°C 5075I C(off)Collector off-state currentV CE =40VFull range0.01100µA(1)Low duty-cycle pulse testing is used to maintain junction temperature as close to ambient temperature as possible.(2)In the non-Darlington configuration,if the output switch is driven into hard saturation at low switch currents (≤300mA)and high driver currents (≥30mA),it may take up to 2µs for the switch to come out of saturation.This condition effectively shortens the off time at frequencies ≥30kHz,becoming magnified as temperature increases.The following output drive condition is recommended in the non-Darlington configuration:Forced βof output switch =I C,SW /(I C,driver –7mA)≥10,where ∼7mA is required by the 100-Ωresistor in the emitter of the driver to forward bias the V be of the switch.PARAMETERTEST CONDITIONST A MIN TYP MAX UNIT 25°C 1.225 1.251.275V th Threshold voltageV Full range 1.211.29∆V th Threshold-voltage line regulation V CC =5V to 40V Full range 1.45mV I IBInput bias currentV IN =0VFull range–20–400nAPARAMETERTEST CONDITIONST A MINMAXUNIT V CC =5V to 40V,C T =1nF,I CCSupply currentV PIN7=V CC ,V PIN5>V th ,Full range4mAV PIN2=GND,All other pins open3TYPICAL CHARACTERISTICSI E , Emitter Current (A)0.010.1101C T , Oscillator Timing Capacitor (nF)t O N -O F F , O u t p u t S w i t c h O n -O f f T i m e (µs )200220240260280300320340360380−50−250255075100125T A , Ambient Temperature (°C)V I P K , C u r r e n t L i m i t S e n s e V o l t a g e (m V )I C , Collector Current (A)0.00.40.81.21.62.02.42.83.23.60510152025303540V CC , Supply Voltage (V)I C C , S u p p l y C u r r e n t (m A )1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005Figure 1.Output Switch On-Off Time vsFigure 2.Output Switch Saturation Voltage vs Oscillator Timing CapacitorEmitter Current (Emitter-Follower Configuration)Figure 3.Output Switch Saturation Voltage vs Figure 4.Current-Limit Sense Voltage vs TemperatureCollector Current (Common-Emitter Configuration)Figure 5.Standby Supply Current vs Supply Voltage4V outOptional FilterV in 12 VV out *1.25(1 R2R1)1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005TYPICAL CHARACTERISTICS (continued)Figure 6.Step-Up ConverterTESTCONDITIONSRESULTSLine regulation V IN =8V to 16V,I O =175mA 30mV ±0.05%Load regulation V IN =12V,I O =75mA to 175mA 10mV ±0.017%Output ripple V IN =12V,I O =175mA 400mV PP EfficiencyV IN =12V,I O =175mA 87.7%Output ripple with optional filterV IN =12V,I O =175mA40mV PP5* R " 0 for constant V inV outinV V a) EXTERNAL npn SWITCHb) EXTERNAL pnp SATURATED SWITCH (see Note A)1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005A.If the output switch is driven into hard saturation (non-Darlington configuration)at low switch currents (≤300mA)and high driver currents (≥30mA),it may take up to 2µs to come out of saturation.This condition will shorten the off time at frequencies ≥30kHz and is magnified at high temperatures.This condition does not occur with a Darlington configuration because the output switch cannot saturate.If a non-Darlington configuration is used,the output drive configuration in Figure 7b is recommended.Figure 7.External Current-Boost Connections for I C Peak Greater Than 1.5A6µHV out5 V/500 mAOptional FilterV in 25 VV out *1.25(1 R2R1)V V outV outa) EXTERNAL npn SWITCH b) EXTERNAL pnp SATURATED SWITCH1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005Figure 8.Step-Down ConverterTESTCONDITIONSRESULTSLine regulation V IN =15V to 25V,I O =500mA 12mV ±0.12%Load regulation V IN =25V,I O =50mA to 500mA 3mV ±0.03%Output ripple V IN =25V,I O =500mA 120mV PP Short-circuit current V IN =25V,R L =0.1Ω 1.1A EfficiencyV IN =25V,I O =500mA 83.7%Output ripple with optional filterV IN =25V,I O =500mA40mV PPFigure 9.External Current-Boost Connections for I C Peak Greater Than 1.5A7V outOptional FilterV inV out Ť*1.25(1 R2R1)V outV V outa) EXTERNAL npn SWITCH 1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005Figure 10.Voltage-Inverting ConverterTESTCONDITIONSRESULTSLine regulation V IN =4.5V to 6V,I O =100mA 3mV ±0.12%Load regulation V IN =5V,I O =10mA to 100mA 0.022V ±0.09%Output ripple V IN =5V,I O =100mA 500mV PP Short-circuit current V IN =5V,R L =0.1Ω910mA EfficiencyV IN =5V,I O =100mA 62.2%Output ripple with optional filterV IN =5V,I O =100mA70mV PPFigure 11.External Current-Boost Connections for I C Peak Greater Than 1.5A8APPLICATION INFORMATION1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005V sat =Saturation voltage of the output switchV F =Forward voltage drop of the chosen output rectifierThe following power-supply parameters are set by the user:V in =Nominal input voltage V out =Desired output voltage I out =Desired output currentf min =Minimum desired output switching frequency at the selected values of V in and I outV ripple =Desired peak-to-peak output ripple voltage.The ripple voltage directly affects the line and load regulation and,thus,must be considered.In practice,the actual capacitor value should be larger than the calculated value,to account for the capacitor's equivalent series resistance and board layout.9THERMAL PAD MECHANICALDATA1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORSSLLS636J–DECEMBER 2004–REVISED OCTOBER 2005DRJ (S-PDSO-N8)10PACKAGING INFORMATIONOrderable Device Status(1)PackageType PackageDrawingPins PackageQtyEco Plan(2)Lead/Ball Finish MSL Peak Temp(3)MC33063AD ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC33063ADE4ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC33063ADR ACTIVE SOIC D82500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC33063ADRE4ACTIVE SOIC D82500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC33063ADRJR ACTIVE SON DRJ81000Green(RoHS&no Sb/Br)CU NIPDAU Level-3-260C-168HRMC33063AP ACTIVE PDIP P850Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeMC33063APE4ACTIVE PDIP P850Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeMC34063AD ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC34063ADE4ACTIVE SOIC D875Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC34063ADR ACTIVE SOIC D82500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC34063ADRE4ACTIVE SOIC D82500Green(RoHS&no Sb/Br)CU NIPDAU Level-1-260C-UNLIMMC34063ADRJR ACTIVE SON DRJ81000Green(RoHS&no Sb/Br)CU NIPDAU Level-3-260C-168HRMC34063AP ACTIVE PDIP P850Pb-Free(RoHS)CU NIPDAU N/A for Pkg TypeMC34063APE4ACTIVE PDIP P850Pb-Free(RoHS)CU NIPDAU N/A for Pkg Type(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 /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 all6substances,including the requirement that lead not exceed0.1%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 either1)lead-based flip-chip solder bumps used between the die and package,or2)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 exceed0.1%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.Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is 12-Mar-2007provided.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 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