MC34063A

MC34063A / MCC33063A— SMPS Controller June 2008 MC34063A / MC33063A SMPS Controller Features Operation from 3.0 to 40V Input Short Circuit Current Limiting Low Standby Current Output Switch Current of 1.5A Without External Transistors Adjustable Output Voltage Frequency of Operation from 100Hz to 100KHz Step-up, Step Down, or Inverting Switching Regulators Description The MC34063A/MC33063A is a monolithic regulator subsystem intended for a DC to DC converter. The device contains a temperature-compensated bandgap reference, a duty cycle control oscillator, driver, and high-current output switch. It can be used for stepdown, step-up, or inverting switching and series pass regulators. 8-DIP 8-SOP Ordering Information Part Number MC34063AP MC34063AD MC33063AP MC33063AD Operating Temperature Range 0 ~ +70°C 0 ~ +70°C -40 ~ +85°C -40 ~ +85°C Eco Status RoHS RoHS RoHS RoHS Package 8-DIP 8-SOP 8-DIP 8-SOP For Fairchild’s definition of “green” Eco Status, please visit: http://www.fairchildsemi.com/company/green/rohs_green.html. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com MC34063A / MC33063A — SMPS Controller Block Diagram DRIVE SWITCH COLLECTOR COLLECTOR 8 1.25V REF VTG COMP S Q Q2 1 5 COMPARATOR INVERTING INPUT Q1 4 GND I P K SENSE TIMIN G C APA CITOR 7 OSCILLATOR R RD 3 2 Figure 1. Block Diagram * V CC (6) © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 2 MC34063A / MC33063A — SMPS Controller Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability. The absolute maximum ratings are stress ratings only. Symbol VCC VI(COMP) VC(SW) VE(SW) VCE(SW) VC(DR) ISW TSTG PD Parameter Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage Switch Collector to Emitter Voltage Driver Collector Voltage Switch Current Storage Temperature Range Power Dissipation SOP DIP Min. -0.3 Max. 40 +40 40 40 40 40 1.5 Unit V V V V V V A °C W -65 +150 0.8 1 Electrical Characteristics VCC = 5.0V, TA = 0°C to +70°C for MC34063, TA = -40°C to +85°C for MC33063, unless otherwise specified. Symbol Oscillator ICHG IDISCHG V(OSC) K VSENSE(CL) Parameter Conditions Min. Typ. Max. Units Charging Current Discharging Current Oscillator Amplitude Discharge-to-Charge Current Ratio Current Limit Sense Voltage (1) (1) VCC=5 to 40V, TA=25°C VCC=5 to 40V, TA=25°C TA=25°C V7=VCC, TA=25°C ICHG=IDISCHG, TA=25°C 22 140 5.2 250 31 190 0.5 6.1 300 42 260 7.5 350 µA µA V mV Output Switch VCE(SAT)1 VCE(SAT)2 GI(DC) IC(OFF) Saturation Voltage 1 Saturation Voltage 2 DC Current Gain (1) (1) ISW =1.0A, VC(driver)=VC(SW) ISW =1.0A, VC(driver)=50mA ISW =1.0A, VCE=5.0V, TA=25°C VCE=40V, TA=25°C 50 0.95 0.45 180 0.01 1.30 0.70 V V Collector Off-State Current 100.00 µA Comparator VTH ΔVTH IBIAS Threshold Voltage Threshold Voltage Line Regulation Input Bias Current VCC=3 to 40V VI=0V 1.21 1.24 2 50 1.29 5 400 V mV nA Total Device ICC Supply Current MC34063 MC33063 VCC=5 to 40V, CT=0.001µF, V7=VCC, V5>VTH, pin 2=GND 4 5 mA Note: 1. Output switch tests are performed under pulsed conditions to minimize power dissipation. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 3 MC34063A / MC33063A — SMPS Controller Typical Performance Characteristics Figure 2. Temperature Drift (VTH) Figure 3. Temperature Drift (IOC) © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 4 MC34063A / MC33063A — SMPS Controller Physical Dimensions A .400 10.15 .373 9.46 .036 [0.9 TYP] [] (.092) [Ø2.337] PIN #1 .250±.005 [6.35±0.13] PIN #1 (.032) [R0.813] B TOP VIEW OPTION 1 .070 1.78 .045 1.14 7° TYP TOP VIEW OPTION 2 [] .310±.010 [7.87±0.25] .130±.005 [3.3±0.13] .210 MAX [5.33] 7° TYP C .021 0.53 .015 0.37 [] C .015 MIN [0.38] .140 3.55 .125 3.17 .100 [2.54] .001[.025] [] .300 [7.62] .430 MAX [10.92] .060 MAX [1.52] .010+.005 0.254+0.127 -.000 -0.000 NOTES: A. CONFORMS TO JEDEC REGISTRATION MS-001, VARIATIONS BA B. CONTROLING DIMENSIONS ARE IN INCHES REFERENCE DIMENSIONS ARE IN MILLIMETERS C. DOES NOT INCLUDE MOLD FLASH OR PROTRUSIONS. MOLD FLASH OR PROTRUSIONS SHALL NOT EXCEED .010 INCHES OR 0.25MM. D. DOES NOT INCLUDE DAMBAR PROTRUSIONS. DAMBAR PROTRUSIONS SHALL NOT EXCEED .010 INCHES OR 0.25MM. E. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994. [ ] N08EREVG Figure 4. 8-Lead PDIP, JEDEC MS-001 Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 5 MC34063A / MC33063A — SMPS Controller Physical Dimensions 5.00 4.80 3.81 8 5 A 0.65 B 6.20 5.80 4.00 3.80 1.75 5.60 PIN ONE INDICATOR 1 4 1.27 0.25 M (0.33) CBA 1.27 LAND PATTERN RECOMMENDATION 0.25 0.10 1.75 MAX C 0.10 0.51 0.33 0.50 x 45° 0.25 C SEE DETAIL A 0.25 0.19 OPTION A - BEVEL EDGE R0.10 R0.10 GAGE PLANE 0.36 OPTION B - NO BEVEL EDGE NOTES: UNLESS OTHERWISE SPECIFIED A) THIS PACKAGE CONFORMS TO JEDEC MS-012, VARIATION AA, ISSUE C, B) ALL DIMENSIONS ARE IN MILLIMETERS. C) DIMENSIONS DO NOT INCLUDE MOLD FLASH OR BURRS. D) LANDPATTERN STANDARD: SOIC127P600X175-8M. E) DRAWING FILENAME: M08AREV13 8° 0° 0.90 0.406 SEATING PLANE (1.04) DETAIL A SCALE: 2:1 Figure 5. 8-Lead, SOIC, JEDEC MS-012, .150 inch Narrow Body Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact a Fairchild Semiconductor representative to verify or obtain the most recent revision. Package specifications do not expand the terms of Fairchild’s worldwide terms and conditions, specifically the warranty therein, which covers Fairchild products. Always visit Fairchild Semiconductor’s online packaging area for the most recent package drawings: http://www.fairchildsemi.com/packaging/. © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 6 MC34063A / MC33063A — SMPS Controller © 2001 Fairchild Semiconductor Corporation MC34063A/MC33063A • Rev. 1.0.3 www.fairchildsemi.com 7