MC34063A

更新时间： 2024-11-03 22:58:15

品牌	Logo	应用领域
安森美 - ONSEMI		转换器
页数	文件大小	规格书
12页	203K
描述
DC-to-DC CONVERTER CONTROL CIRCUITS

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数据手册

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MC34063A 数据手册

Order this document by MC34063A/D

DC–to–DC CONVERTER

CONTROL CIRCUITS

The 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 Voltage–Inverting applications with a

minimum number of external components. Refer to Application Notes

AN920A/D and AN954/D for additional design information.

SEMICONDUCTOR

TECHNICAL DATA

• Operation from 3.0 V to 40 V Input

• Low Standby Current

• Current Limiting

• Output Switch Current to 1.5 A

• Output Voltage Adjustable

• Frequency Operation to 100 kHz

• Precision 2% Reference

P, P1 SUFFIX

PLASTIC PACKAGE

CASE 626

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

PIN CONNECTIONS

Representative Schematic Diagram

Switch

Collector

Driver

Collector

Switch

Emitter

Sense

Drive

Collector

Switch

Collector

Timing

Capacitor

S Q

Comparator

Inverting

Input

Gnd

100

Sense

Switch

Emitter

(Top View)

Oscillator

ORDERING INFORMATION

Operating

Timing

Capacitor

Comparator

Temperature Range

Device

Package

1.25 V

Reference

Regulator

–

MC33063AD

MC33063AP1

MC33063AVD

MC33063AVP

MC34063AD

SO–8

= – 40° to +85°C

= –40° to +125°C

Comparator

Inverting

Input

Plastic DIP

SO–8

Gnd

(Bottom View)

Plastic DIP

SO–8

This device contains 51 active transistors.

= 0° to +70°C

MC34063AP1

Plastic DIP

Motorola, Inc. 1996

Rev 5

MOTOROLA ANALOG IC DEVICE DATA

12 3 4 5 6 7...12

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