MC34063API datasheet英文资料

MC34063A, MC33063A,NCV33063A1.5 A, Step−Up/Down/Inverting Switching RegulatorsThe MC34063A Series is a monolithic control circuit containing the primary functions required for DC−to−DC converters. These devices consist of an internal temperature compensated reference, comparator,controlled duty cycle oscillator with an active current limit circuit,driver and high current output switch. This series was specifically designed to be incorporated in Step−Down and Step−Up and V oltage−Inverting applications with a minimum number of external components. Refer to Application Notes AN920A/D and AN954/D for additional design information.Features•Operation from 3.0 V to 40 V Input •Low Standby Current •Current Limiting•Output Switch Current to 1.5 A •Output V oltage Adjustable•Frequency Operation to 100 kHz •Precision 2% Reference•Pb−Free Packages are AvailableFigure 1. Representative Schematic DiagramDrive CollectorI pk SenseV CCComparator Inverting InputSwitch CollectorSwitch EmitterTiming CapacitorGND(Bottom View)This device contains 51 active transistors.SOIC−8D SUFFIX CASE 751PDIP−8P , P1 SUFFIX CASE 6261See detailed ordering and shipping information in the package dimensions section on page 11 of this data sheet.ORDERING INFORMATION1Switch CollectorSwitch Emitter Timing CapacitorGNDDriver Collector I pk Sense V CC Comparator Inverting Input(Top View)2345678PIN CONNECTIONSx = 3 or 4A = Assembly Location L, WL = Wafer Lot Y , YY = YearW, WW = Work WeekG or G= Pb−Free Package183x063AP1AWL YYWWG1833063AVPAWL YYWWG 18MARKING DIAGRAMSMAXIMUM RATINGSRating Symbol Value Unit Power Supply Voltage V CC40Vdc Comparator Input Voltage Range V IR−0.3 to +40Vdc Switch Collector Voltage V C(switch)40Vdc Switch Emitter Voltage (V Pin1 = 40 V)V E(switch)40Vdc Switch Collector to Emitter Voltage V CE(switch)40Vdc Driver Collector Voltage V C(driver)40Vdc Driver Collector Current (Note 1)I C(driver)100mA Switch Current I SW 1.5A Power Dissipation and Thermal CharacteristicsPlastic Package, P, P1 SuffixT A = 25°C P D 1.25W Thermal Resistance R q JA100°C/W SOIC Package, D SuffixT A = 25°C P D625mW Thermal Resistance R q JA160°C/W Operating Junction Temperature T J+150°C Operating Ambient Temperature Range T A°C MC34063A 0 to +70MC33063AV, NCV33063A−40 to +125MC33063A−40 to +85Storage Temperature Range T stg−65 to +150°C Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.1.Maximum package power dissipation limits must be observed.2.This device series contains ESD protection and exceeds the following tests: Human Body Model 4000 V per MIL−STD−883, Method 3015.Machine Model Method 400 V.3.NCV prefix is for automotive and other applications requiring site and change control.ELECTRICAL CHARACTERISTICS (V CC = 5.0 V, T A = T low to T high[Note 4], unless otherwise specified.)Characteristics Symbol Min Typ Max Unit OSCILLATORFrequency (V Pin5 = 0 V, C T = 1.0 nF, T A = 25°C)f osc243342kHz Charge Current (V CC = 5.0 V to 40 V, T A = 25°C)I chg243542m A Discharge Current (V CC = 5.0 V to 40 V, T A = 25°C)I dischg140220260m A Discharge to Charge Current Ratio (Pin 7 to V CC, T A = 25°C)I dischg/I chg 5.2 6.57.5−Current Limit Sense Voltage (I chg = I dischg, T A = 25°C)V ipk(sense)250300350mV OUTPUT SWITCH (Note 5)Saturation Voltage, Darlington Connection(I SW = 1.0 A, Pins 1, 8 connected)V CE(sat)− 1.0 1.3VSaturation Voltage (Note 6)(I SW = 1.0 A, R Pin8 = 82 W to V CC, Forced b] 20)V CE(sat)−0.450.7V DC Current Gain (I SW = 1.0 A, V CE = 5.0 V, T A = 25°C)h FE5075−−Collector Off−State Current (V CE = 40 V)I C(off)−0.01100m A COMPARATORThreshold Voltage T A = 25°CT A = T low to T high V th1.2251.211.25−1.2751.29VThreshold Voltage Line Regulation (V CC = 3.0 V to 40 V) MC33063A, MC34063AMC33063AV, NCV33063A Reg line−−1.41.45.06.0mVInput Bias Current (V in = 0 V)I IB−−20−400nA TOTAL DEVICESupply Current (V CC = 5.0 V to 40 V, C T = 1.0 nF, Pin 7 = V CC,V Pin5 > V th, Pin 2 = GND, remaining pins open)I CC−− 4.0mA4.T low = 0°C for MC34063A, −40°C for MC33063A, AV, NCV33063AT high = +70°C for MC34063A, +85°C for MC33063A, +125°C for MC33063AV, NCV33063A5.Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.6.If the output switch is driven into hard saturation (non−Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents(≥30 mA), it may take up to 2.0 m s for it to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non−Darlington configuration is used, the following output drive condition is recommended:Forced b of output switch:I C outputI C driver–7.0mA*w10*The 100 W resistor in the emitter of the driver device requires about 7.0 mA before the output switch conducts.Figure 2. Output Switch On−Off Time versusOscillator Timing CapacitorFigure 3. Timing Capacitor Waveform0.010.020.050.10.20.5 1.0 2.05.010C T , OSCILLATOR TIMING CAPACITOR (nF), O U T P U T S W I T C H O N -O F F T I M E ( s )o n −o f f μt 10 m s/DIV, O S C I L L A T O R V O L T A G E (V )O S C 200 m V /D I VV V CC = 5.0 V Pin 7 = V CC Pin 2 = GNDPins 1, 5, 8 = Open C T = 1.0 nF T A = 25°C10005002001005020105.02.01.0Figure 6. Current Limit Sense Voltageversus Temperature Figure 7. Standby Supply Current versusSupply Voltage, S A T U R A T I O N V O L T A G E (V )C E (s a t )V −55−25025*******125, C U R R E N T L I M I T S E N S E V O L T A G E (V )I P K (s e n s e )T A , AMBIENT TEMPERATURE (°C)V 05.010152025303540V CC , SUPPLY VOLTAGE (V)1.81.71.61.51.41.31.21.11.04003803603403203002802602402202007.Low duty cycle pulse techniques are used during test to maintain junction temperature as close to ambient temperature as possible.170 m HV in12 VV outOptional FilterTest Conditions Results Line Regulation V in = 8.0 V to 16 V, I O = 175 mA30 mV = ±0.05%Load Regulation V in = 12 V, I O = 75 mA to 175 mA10 mV = ±0.017%Output Ripple V in = 12 V, I O = 175 mA400 mVppEfficiency V in = 12 V, I O = 175 mA87.7%Output Ripple With Optional Filter V in = 12 V, I O = 175 mA40 mVppFigure 8. Step−Up ConverterFigure 9. External Current Boost Connections for I C Peak Greater than 1.5 A9a. External NPN Switch9b. External NPN Saturated Switch(See Note 8)8.If the output switch is driven into hard saturation (non−Darlington configuration) at low switch currents (≤ 300 mA) and high driver currents(≥30 mA), it may take up to 2.0 m s to come out of saturation. This condition will shorten the off time at frequencies ≥ 30 kHz, and is magnified at high temperatures. This condition does not occur with a Darlington configuration, since the output switch cannot saturate. If a non−Darlington configuration is used, the following output drive condition is recommended.V out Optional FilterV in 25 VTestConditionsResults Line Regulation V in = 15 V to 25 V, I O = 500 mA 12 mV = ±0.12%Load Regulation V in = 25 V, I O = 50 mA to 500 mA 3.0 mV = ±0.03%Output Ripple V in = 25 V, I O = 500 mA 120 mVpp Short Circuit Current V in = 25 V, R L = 0.1 W 1.1 A EfficiencyV in = 25 V, I O = 500 mA 83.7%Output Ripple With Optional FilterV in = 25 V, I O = 500 mA40 mVppFigure 10. Step−Down Converter11a. External NPN Switch11b. External PNP Saturated SwitchFigure 11. External Current Boost Connections for I C Peak Greater than 1.5 AV outOptional FilterV TestConditionsResults Line Regulation V in = 4.5 V to 6.0 V, I O = 100 mA 3.0 mV = ±0.012%Load Regulation V in = 5.0 V, I O = 10 mA to 100 mA 0.022 V = ±0.09%Output Ripple V in = 5.0 V, I O = 100 mA 500 mVpp Short Circuit Current V in = 5.0 V, R L = 0.1 W 910 mA EfficiencyV in = 5.0 V, I O = 100 mA 62.2%Output Ripple With Optional FilterV in = 5.0 V, I O = 100 mA70 mVppFigure 12. Voltage Inverting Converter13a. External NPN Switch13b. External PNP Saturated SwitchFigure 13. External Current Boost Connections for I C Peak Greater than 1.5 A(Top view, copper foil as seen through the board from the component side)(Top View, Component Side)*Optional Filter.Figure 14. Printed Circuit Board and Component Layout(Circuits of Figures 8, 10, 12)INDUCTOR DATAConverter Inductance (m H)Turns/Wire Step−Up 17038 Turns of #22 AWG Step−Down 22048 Turns of #22 AWG Voltage−Inverting8828 Turns of #22 AWGAll inductors are wound on Magnetics Inc. 55117 toroidal core.V sat = Saturation voltage of the output switch.V F = Forward voltage drop of the output rectifier.The following power supply characteristics must be chosen:V in − Nominal input voltage.V out − Desired output voltage,I out − Desired output current.f min − Minimum desired output switching frequency at the selected values of V in and I O .V ripple(pp) − Desired peak−to−peak output ripple voltage. In practice, the calculated capacitor value will need to be increased due to itsequivalent series resistance and board layout. The ripple voltage should be kept to a low value since it will directly affect the line and load regulation.NOTE:For further information refer to Application Note AN920A/D and AN954/D.|V out |+ 1.25ǒ1)R2R1ǓFigure 15. Design Formula TableORDERING INFORMATIONDevicePackage Shipping †MC33063AD SOIC−898 Units / Rail MC33063ADG SOIC−8(Pb−Free)98 Units / Rail MC33063ADR2SOIC−82500 Units / Tape & Reel MC33063ADR2G SOIC−8(Pb−Free)2500 Units / Tape & ReelMC33063AP1PDIP−850 Units / Rail MC33063AP1G PDIP−8(Pb−Free)50 Units / Rail MC33063AVD SOIC−898 Units / Rail MC33063AVDG SOIC−8(Pb−Free)98 Units / RailMC33063AVDR2SOIC−82500 Units / Tape & ReelMC33063AVDR2G SOIC−8(Pb−Free)NCV33063AVDR2*SOIC−8NCV33063AVDR2G*SOIC−8(Pb−Free)MC33063AVP PDIP−850 Units / Rail MC33063AVPG PDIP−8(Pb−Free)50 Units / Rail MC34063AD SOIC−898 Units / Rail MC34063ADG SOIC−8(Pb−Free)98 Units / Rail MC34063ADR2SOIC−82500 Units / Tape & Reel MC34063ADR2G SOIC−8(Pb−Free)2500 Units / Tape & ReelMC34063AP1PDIP−850 Units / Rail MC34063AP1GPDIP−8(Pb−Free)50 Units / Rail †For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specification Brochure, BRD8011/D.*NCV33063A: T low = −40°C, T high = +125°C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and change control.SOIC−8 NB D SUFFIX CASE 751−07ISSUE AG*For additional information on our Pb−Free strategy and solderingdetails, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.SOLDERING FOOTPRINT*ǒmm inchesǓSCALE 6:1NOTES:1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.2.CONTROLLING DIMENSION: MILLIMETER.3.DIMENSION A AND B DO NOT INCLUDE MOLD PROTRUSION.4.MAXIMUM MOLD PROTRUSION 0.15 (0.006)PER SIDE.5.DIMENSION D DOES NOT INCLUDE DAMBAR PROTRUSION. ALLOWABLE DAMBARPROTRUSION SHALL BE 0.127 (0.005) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION.6.751−01 THRU 751−06 ARE OBSOLETE. NEW STANDARD IS 751−07.DIM A MIN MAX MIN MAX INCHES4.805.000.1890.197MILLIMETERS B 3.80 4.000.1500.157C 1.35 1.750.0530.069D 0.330.510.0130.020G 1.27 BSC 0.050 BSC H 0.100.250.0040.010J 0.190.250.0070.010K 0.40 1.270.0160.050M 0 8 0 8 N 0.250.500.0100.020S5.806.200.2280.244YM0.25 (0.010)Z SXS____PDIP−8P , P1 SUFFIX CASE 626−05ISSUE LNOTES:1.DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL.2.PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS).3.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.DIM MIN MAX MIN MAX INCHESMILLIMETERS A 9.4010.160.3700.400B 6.10 6.600.2400.260C 3.94 4.450.1550.175D 0.380.510.0150.020F 1.02 1.780.0400.070G 2.54 BSC 0.100 BSC H 0.76 1.270.0300.050J 0.200.300.0080.012K 2.92 3.430.1150.135L 7.62 BSC 0.300 BSC M −−−10 −−−10 N0.76 1.010.0300.040__ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. 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