mc34063a

1 2 3 4 8 7 6 5 Switch Collector Switch Emitter Timing Capacitor GND Driver Collector Ipk VCC Comparator Inverting Input D (SOIC) OR P (PDIP) PACKAGE (TOP VIEW) DRJ (QFN) PACKAGE (TOP VIEW) Comparator Inverting Input Switch Collector 2 3 4 1 8 7 6 5 Switch Emitter Timing Capacitor GND VCC Ipk Driver Collector † The exposed thermal pad is electrically bonded internally to pin 4 (GND) . † MC33063A MC34063A www.ti.com SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 1.5-A PEAK BOOST/BUCK/INVERTING SWITCHING REGULATORS Check for Samples: MC33063A, MC34063A 1FEATURES • Wide Input Voltage Range: 3 V to 40 V • Precision Internal Reference: 2% • High Output Switch Current: Up to 1.5 A • Short-Circuit Current Limiting • Adjustable Output Voltage • Low Standby Current • Oscillator Frequency Up to 100 kHz DESCRIPTION/ORDERING INFORMATION The 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 to 85°C, while the MC34063A is characterized for operation from 0°C to 70°C. 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Copyright © 2004–2011, Texas Instruments IncorporatedProducts conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. − + QS 1.25-V Reference Regulator R CT Ipk Oscillator Q2 Q1 Switch Collector 4 Switch Emitter Timing Capacitor GND 3 2 18 7 6 5Comparator Inverting Input VCC Ipk Sense Drive Collector 100 Ω MC33063A MC34063A SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 www.ti.com ORDERING INFORMATION (1) TA PACKAGE (2) ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP – P Tube of 50 MC33063AP MC33063AP QFN – DRJ Reel of 1000 MC33063ADRJR ZYF –40°C to 85°C Tube of 75 MC33063AD SOIC – D M33063A Reel of 2500 MC33063ADR PDIP – P Tube of 50 MC34063AP MC34063AP QFN – DRJ Reel of 1000 MC34063ADRJR ZYG 0°C to 70°C Tube of 75 MC34063AD SOIC – D M34063A Reel of 2500 MC34063ADR (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. (2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging. FUNCTIONAL BLOCK DIAGRAM 2 Submit Documentation Feedback Copyright © 2004–2011, Texas Instruments Incorporated Product Folder Link(s): MC33063A MC34063A MC33063A MC34063A www.ti.com SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 Absolute Maximum Ratings (1) over operating free-air temperature range (unless otherwise noted) MIN MAX UNIT VCC Supply voltage 40 V VIR Comparator Inverting Input voltage range –0.3 40 V VC(switch) Switch Collector voltage 40 V VE(switch) Switch Emitter voltage VPIN1 = 40 V 40 V VCE(switch) Switch Collector to Switch Emitter voltage 40 V VC(driver) Driver Collector voltage 40 V IC(driver) Driver Collector current 100 mA ISW Switch current 1.5 A D package 97 θJA Package thermal impedance (2) (3) DRJ package 41 °C/W P package 85 TJ Operating virtual junction temperature 150 °C Tstg Storage temperature range –65 150 °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 TJ(max), θJA, and TA. The maximum allowable power dissipation at any allowable ambient temperature is PD = (TJ(max) – TA)/θJA. Operating at the absolute maximum TJ of 150°C can affect reliability.(3) The package thermal impedance is calculated in accordance with JESD 51-7. Recommended Operating Conditions MIN MAX UNIT VCC Supply voltage 3 40 V MC33063A –40 85 TA Operating free-air temperature °CMC34063A 0 70 Electrical Characteristics VCC = 5 V, TA = full operating range (unless otherwise noted) (see block diagram) Oscillator PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT fosc Oscillator frequency VPIN5 = 0 V, CT = 1 nF 25°C 24 33 42 kHz Ichg Charge current VCC = 5 V to 40 V 25°C 24 35 42 μA Idischg Discharge current VCC = 5 V to 40 V 25°C 140 220 260 μA Idischg/Ichg Discharge-to-charge current ratio VPIN7 = VCC 25°C 5.2 6.5 7.5 VIpk Current-limit sense voltage Idischg = Ichg 25°C 250 300 350 mV Copyright © 2004–2011, Texas Instruments Incorporated Submit Documentation Feedback 3 Product Folder Link(s): MC33063A MC34063A MC33063A MC34063A SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 www.ti.com Output Switch (1) PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT Saturation voltage –VCE(sat) ISW = 1 A, pins 1 and 8 connected Full range 1 1.3 VDarlington connection Saturation voltage – ISW = 1 A, RPIN8 = 82 Ω to VCC,VCE(sat) Full range 0.45 0.7 Vnon-Darlington connection (2) forced β ∼ 20 hFE DC current gain ISW = 1 A, VCE = 5 V 25°C 50 75 IC(off) Collector off-state current VCE = 40 V Full range 0.01 100 μA (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 (≤300 mA) and high driver currents (≥30 mA), it may take up to 2 μs for the switch to come out of saturation. This condition effectively shortens the off time at frequencies ≥30 kHz, becoming magnified as temperature increases. The following output drive condition is recommended in the non-Darlington configuration: Forced β of output switch = IC,SW / (IC,driver – 7 mA) ≥ 10, where ∼7 mA is required by the 100-Ω resistor in the emitter of the driver to forward bias the Vbe of the switch. Comparator PARAMETER TEST CONDITIONS TA MIN TYP MAX UNIT 25°C 1.225 1.25 1.275 Vth Threshold voltage VFull range 1.21 1.29 ΔVth Threshold-voltage line regulation VCC = 5 V to 40 V Full range 1.4 5 mV IIB Input bias current VIN = 0 V Full range –20 –400 nA Total Device PARAMETER TEST CONDITIONS TA MIN MAX UNIT VCC = 5 V to 40 V, CT = 1 nF, ICC Supply current VPIN7 = VCC, VPIN5 > Vth, Full range 4 mA VPIN2 = GND, All other pins open 4 Submit Documentation Feedback Copyright © 2004–2011, Texas Instruments Incorporated Product Folder Link(s): MC33063A MC34063A 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 IE, Emitter Current (A) V C E( SA T), O ut pu t S w itc h Sa tu ra tio n Vo lta ge (V ) VCC = 5 V Pin 1, 7, 8 = VCC Pin 3, 5 = GND TA = 25°C 1 101 10 100 1000 0.01 0.1 1 10 CT, Oscillator Timing Capacitor (nF) t O N- OF F, O u tp u tS w itc h O n - O ff Ti m e (µ s) VCC = 5 V Pin 7 = VCC Pin 5 = GND TA = 25°C tON tOFF 200 220 240 260 280 300 320 340 360 380 −50 −25 0 25 50 75 100 125 TA, Ambient Temperature (°C) V I PK , Cu rr en t L im it Se ns e Vo lta ge (m V) VCC = 5 V ICHG = IDISCHG 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 IC, Collector Current (A) V C E( SA T), O ut pu t S w itc h Sa tu ra tio n Vo lta ge (V ) Darlington Connection VCC = 5 V Pin 7 = VCC Pin 2, 3, 5 = GND TA = 25°C Force Beta = 20 0 0 1 0.0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 0 5 10 15 20 25 30 35 40 VCC, Supply Voltage (V) I C C, S up pl y Cu rr en t (m A) CT = 1 nF Pin 7 = VCC Pin 2 = GND TA = 25°C MC33063A MC34063A www.ti.com SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 TYPICAL CHARACTERISTICS Figure 1. Output Switch On-Off Time vs Figure 2. Output Switch Saturation Voltage vs Oscillator Timing Capacitor Emitter Current (Emitter-Follower Configuration) Figure 3. Output Switch Saturation Voltage vs Figure 4. Current-Limit Sense Voltage vs Temperature Collector Current (Common-Emitter Configuration) Figure 5. Standby Supply Current vs Supply Voltage Copyright © 2004–2011, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Link(s): MC33063A MC34063A QS R CT Ipk Q2 Q1 2 1 CT Comparator _ + 1.25-V Reference Regulator 45 3 8 180 Ω 7 6 RSC 0.22 Ω 47 kΩ R2 L 170 µH CO 1N5819 330 µF 1500 pF R1 2.2 kΩ 100 µF + + VCC VOUT 28 V/175 mA 1.0 µH 100 µF + Optional Filter VIN 12 V VOUT� 1.25 (1� R2R1) MC33063A MC34063A SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 www.ti.com TYPICAL CHARACTERISTICS (continued) Figure 6. Step-Up Converter TEST CONDITIONS RESULTS Line regulation VIN = 8 V to 16 V, IO = 175 mA 30 mV ± 0.05% Load regulation VIN = 12 V, IO = 75 mA to 175 mA 10 mV ± 0.017% Output ripple VIN = 12 V, IO = 175 mA 400 mVPP Efficiency VIN = 12 V, IO = 175 mA 87.7% Output ripple with optional filter VIN = 12 V, IO = 175 mA 40 mVPP 6 Submit Documentation Feedback Copyright © 2004–2011, Texas Instruments Incorporated Product Folder Link(s): MC33063A MC34063A 8 7 6 1 2 R* * R 0 for constant V in 8 7 6 1 2 VOUT RSC VIN RSC VIN VOUT a) EXTERNAL npn SWITCH b) EXTERNAL npn SATURATED SWITCH (see Note A) MC33063A MC34063A www.ti.com SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 A. 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 μs 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 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 IC Peak Greater Than 1.5 A Copyright © 2004–2011, Texas Instruments Incorporated Submit Documentation Feedback 7 Product Folder Link(s): MC33063A MC34063A QS R CT Ipk Q2 Q1 2 1 CT Oscillator _ + 1.25-V Reference Regulator 45 3 8 7 6 RSC 0.33 Ω 3.8 kΩ R2 L 220 µH CO 1N5819 470 µF 470 pF R1 1.2 kΩ 100 µF + + VCC VOUT 5 V/500 mA 1.0 µH 100 µF + Optional Filter VIN 25 V Comparator VOUT� 1.25 (1� R2R1) VIN 8 7 6 1 2 8 7 6 1 2 RSC VIN RSC VOUT VOUT a) EXTERNAL npn SWITCH b) EXTERNAL pnp SATURATED SWITCH MC33063A MC34063A SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 www.ti.com Figure 8. Step-Down Converter TEST CONDITIONS RESULTS Line regulation VIN = 15 V to 25 V, IO = 500 mA 12 mV ± 0.12% Load regulation VIN = 25 V, IO = 50 mA to 500 mA 3 mV ± 0.03% Output ripple VIN = 25 V, IO = 500 mA 120 mVPP Short-circuit current VIN = 25 V, RL = 0.1 Ω 1.1 A Efficiency VIN = 25 V, IO = 500 mA 83.7% Output ripple with optional filter VIN = 25 V, IO = 500 mA 40 mVPP Figure 9. External Current-Boost Connections for IC Peak Greater Than 1.5 A 8 Submit Documentation Feedback Copyright © 2004–2011, Texas Instruments Incorporated Product Folder Link(s): MC33063A MC34063A QS R CT Ipk Q2 Q1 2 1 Oscillator _ + 1.25-V Reference Regulator 45 3 8 7 6 RSC 0.24 Ω 953 Ω R1 CO 1N5819 1500 pF R2 8.2 kΩ 100 µF + VCC VOUT −12 V/100 mA 1.0 µH 100 µF Optional Filter VIN 4.5 V to 6.0 V ++1000 µF + L 88 µH Comparator VOUT��1.25 (1�R2R1) VIN VOUT VIN VOUT 8 7 6 4 3 2 1 8 7 6 4 3 2 1 5 5 a) External NPN Switch b) External PNP Saturated Switch MC33063A MC34063A www.ti.com SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 Figure 10. Voltage-Inverting Converter TEST CONDITIONS RESULTS Line regulation VIN = 4.5 V to 6 V, IO = 100 mA 3 mV ± 0.12% Load regulation VIN = 5 V, IO = 10 mA to 100 mA 0.022 V ± 0.09% Output ripple VIN = 5 V, IO = 100 mA 500 mVPP Short-circuit current VIN = 5 V, RL = 0.1 Ω 910 mA Efficiency VIN = 5 V, IO = 100 mA 62.2% Output ripple with optional filter VIN = 5 V, IO = 100 mA 70 mVPP Figure 11. External Current-Boost Connections for IC Peak Greater Than 1.5 A Copyright © 2004–2011, Texas Instruments Incorporated Submit Documentation Feedback 9 Product Folder Link(s): MC33063A MC34063A Vout � VF Vin(min) � Vsat � Vout �Vout� � VF Vin � Vsat Vout � VF�Vin(min) Vin(min) � Vsat 1 f 1 f 1 f ton � toff ton toff � 1 ton � toff ton toff � 1 ton � toff ton toff � 1 �ton � toff�� toff �ton � toff�� toff �ton � toff�� toff 4� 10�5 ton 4� 10�5 ton 4� 10�5 ton 2Iout(max)2Iout(max)� tontoff � 1� 2Iout(max)� ton toff � 1� 0.3 Ipk(switch) 0.3 Ipk(switch) 0.3 Ipk(switch) ��Vin(min) � Vsat�Ipk(switch) �ton(max) � �Vin(min) � Vsat � Vout� Ipk(switch) �ton(max) ��Vin(min) � Vsat�Ipk(switch) �ton(max) 9 Ioutton Vripple(pp) 9 Ioutton Vripple(pp) Ipk(switch)�ton � toff� 8Vripple(pp) 1.25(1� R2R1) 1.25(1� R2 R1) �1.25(1� R2 R1) MC33063A MC34063A SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 www.ti.com APPLICATION INFORMATION CALCULATION STEP UP STEP DOWN VOLTAGE INVERTING ton/toff (ton + toff) toff ton CT Ipk(switch) RSC L(min) CO Vout See Figure 6 See Figure 8 See Figure 10 Vsat = Saturation voltage of the output switch VF = Forward voltage drop of the chosen output rectifier The following power-supply parameters are set by the user: Vin = Nominal input voltage Vout = Desired output voltage Iout = Desired output current fmin = Minimum desired output switching frequency at the selected values of Vin and Iout Vripple = 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. 10 Submit Documentation Feedback Copyright © 2004–2011, Texas Instruments Incorporated Product Folder Link(s): MC33063A MC34063A MC33063A MC34063A www.ti.com SLLS636M –DECEMBER 2004–REVISED JANUARY 2011 REVISION HISTORY Changes from Revision L (December 2009) to Revision M Page • Changed pnp to npn for figure 7b, text typo. ........................................................................................................................ 7 • Changed figure 11b schematic. ............................................................................................................................................ 9 Copyright © 2004–2011, Texas Instruments Incorporated Submit Documentation Feedback 11 Product Folder Link(s): MC33063A MC34063A PACKAGE OPTION ADDENDUM www.ti.com 19-Jan-2011 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) Samples (Requires Login) MC33063AD ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples MC33063ADE4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples MC33063ADG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples MC33063ADR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples MC33063ADRE4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples MC33063ADRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples MC33063ADRJR ACTIVE SON DRJ 8 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR Request Free Samples MC33063ADRJRG4 ACTIVE SON DRJ 8 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR Request Free Samples MC33063AP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Request Free Samples MC33063AP-P PREVIEW PDIP P 8 50 TBD Call TI Call TI Samples Not Available MC33063APE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Request Free Samples MC34063AD ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples MC34063ADE4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples MC34063ADG4 ACTIVE SOIC D 8 75 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Purchase Samples MC34063ADR ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples MC34063ADRE4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples MC34063ADRG4 ACTIVE SOIC D 8 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM Request Free Samples MC34063ADRJR ACTIVE SON DRJ 8 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR Request Free Samples PACKAGE OPTION ADDENDUM www.ti.com 19-Jan-2011 Addendum-Page 2 Orderable Device Status (1) Package Type Package Drawing Pins Package Qty Eco Plan (2) Lead/ Ball Finish MSL Peak Temp (3) Samples (Requires Login) MC34063ADRJRG4 ACTIVE SON DRJ 8 1000 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR Request Free Samples MC34063AP ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Request Free Samples MC34063APE4 ACTIVE PDIP P 8 50 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type Request Free Samples (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. 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 thi