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MC34063D Dataheets PDF



Part Number MC34063D
Manufacturers Silicon Link
Logo Silicon Link
Description DC/DC Converter Control Circuits
Datasheet MC34063D DatasheetMC34063D Datasheet (PDF)

MC34063D DC/DC Converter Control Circuits DESCRIPTION The MC34063D is a monolithic control circuit containing the primary functions required for DC-to-DC converter. This device consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. Employing a minimum number of external components, the MC34063D is designed for Step-Down, Step-Up and Voltage-Inverting applications. FEATURE.

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MC34063D DC/DC Converter Control Circuits DESCRIPTION The MC34063D is a monolithic control circuit containing the primary functions required for DC-to-DC converter. This device consist of an internal temperature compensated reference, comparator, controlled duty cycle oscillator with an active current limit circuit, driver and high current output switch. Employing a minimum number of external components, the MC34063D is designed for Step-Down, Step-Up and Voltage-Inverting applications. FEATURES ¨ ¨ ¨ ¨ ¨ ¨ ¨ Operation from 3V to 40V Active Current Limiting Low Quiescent Current: 3mA Output Switch Current in Excess of 1.5A Adjustable Output Voltage Frequency Operation to 100 kHz 2% Reference Accuracy PIN CONFIGURATION – Top View 8L SOIC 8L PDIP 8 Driver Collector Switch Collector Switch Emitter 1 2 3 4 8 Driver Collector 7 Ipk Sense 6 VCC 5 Comparator Inverting Input Switch Collector 1 Switch Emitter 2 Timing Capacitor 3 GND 4 7 Ipk Sense 6 VCC 5 Comparator Inverting Input Timing Capacitor GND PACKAGE TOP MARKING: (For 8L SOIC/PDIP) MC34063 FYMXXXS GYYWW Line 1: Device Line 2: Lot No. Code F – Foundry Code (G) YMXXX – 5 Character Lot No. S – Split Code Line 3: Date Code G – Assembly Vendor Code YY – Year WW – Workweek ORDERING INFORMATION MC34063D D8 13 Circuit Type: DC/DC Converter Control Circuits Package Style: D8 = SOIC/8L N8 = PDIP/8L Packaging Option: T = Tube 13 = Tape and Reel (13” Reel Dia) Silicon Link Inc. www.silicon-link.com 1 March 2010 Rev. 2 MC34063D DC/DC Converter Control Circuits ABSOLUTE MAXIMUM RATINGS Parameter Supply Voltage Comparator Input Voltage Range Switch Collector Voltage Switch Emitter Voltage Switch Collector to Emitter Voltage Driver Collector Voltage Switch Current Tamb=25°C Power Dissipation Storage Temperature Range Operating Junction Temperature 8L PDIP 8L SOIC Symbol VCC VIR VC(sw) VSWE VCE VC(DR) ISW PD Topr Tstg TopJ Value 40 -0.3 ~ +40 40 40 40 40 1.5 1.25 0.625 -40 to +85 -65 to +150 120 Unit V V V V V V A W °C °C °C Operating Ambient Temperature Range ELECTRICAL CHARACTERISTICS (VCC = 5V, Ta = 25°C, unless otherwise specified) Parameter Oscillator Charging Current Discharge Current Voltage Amplitude Discharge to Charge Current Ratio Current Limit Sense Voltage Output Switch Saturation Voltage Darlington Connection Saturation Voltage DC Current Gain Collector Off-State Current Comparator Threshold Voltage Threshold Voltage Line Regulation Input Bias Current Total Device VCC=5~40V,VPIN7=VCC VPIN5>VFB, CT =0.001µF Pin7=Gnd Remaining pins open VFB ∆ VFB IIB VCC=5~40V VIN=0 1.227 1.250 1.5 40 1.273 6 400 V mV nA VCE(sat)1 VCE(sat)2 hFE ICC(off) ISW=1.0A,VC(SW)=VC(DR) ISW=1.0A, IC(DR)=50mA ISW=1.0A, VCE=5.0V VCE=40V, TA=25°C 35 1.0 0.4 150 10 1.3 0.7 100 nA V V Ichg Idischg VOSC K VIPK Vcc=5~40V, TA=25°C Vcc=5~40V, TA=25°C TA=25°C VPIN7=VCC, TA=25°C Idischg=Ichg, TA=25°C 24 140 5.2 250 33 200 0.6 6.0 300 42 260 7.5 350 mV µA µA V Symbol Test Conditions Min Typ Max Unit Supply Current ICC .


HLMP3300 MC34063D BL12864GEPNH


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