An920a D Datasheet Pdf
Read MC34063.pdf text version Order this document by MC34063A/D MC34063A MC33063A DC-to-DC Converter Control Circuits The MC34063A Series is a monolithic control circuit containing the primary functions required for DCtoDC 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 StepDown and StepUp and VoltageInverting applications with a minimum number of external components. Refer to Application Notes AN920A/D and AN954/D for additional design information. Operation from 3.0 V to 40 V Input DCtoDC CONVERTER CONTROL CIRCUITS SEMICONDUCTOR TECHNICAL DATA Low Standby Current Current Limiting Output Switch Current to 1.5 A Output Voltage Adjustable Frequency Operation to 100 kHz Precision 2% Reference 8 1 P, P1 SUFFIX PLASTIC PACKAGE CASE 626 8 1 D SUFFIX PLASTIC PACKAGE CASE 751 (SO8) PIN CONNECTIONS Representative Schematic Diagram 1 S Q 7 R 100 Ipk Oscillator CT 6 VCC Comparator + Comparator 5 Inverting Input (Bottom View) 1.25 V Reference Regulator 4 Gnd MC33063AVD MC33063AVP MC34063AD This device contains 51 active transistors. MC34063AP1 TA = 0° to +70°C TA = 40° to +125°C SO8 Plastic DIP SO8 Plastic DIP Rev 5 Switch Collector Switch Emitter Timing Capacitor Gnd 1 2 3 4 8 7 6 5 Driver Collector Ipk Sense VCC Comparator Inverting Input Drive 8 Collector Q2 Q1 Switch Collector Ipk Sense 2 Switch Emitter (Top View) 3 ORDERING INFORMATION Timing Capacitor Device MC33063AD MC33063AP1 Operating Temperature Range TA = 40° to +85°C Package SO8 Plastic DIP © Motorola, Inc.
Datasheet (1) Automatic Temperature Controller. Contactless Digital Tachometer Using 8051 Microcontroller. Refer to Application Notes AN920A/D and AN954/D for additional design information. Documents Similar To 34063a.pdf. Kamal Nandan.
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