Datasheet > LM18293

LM18293

更新时间： 2024-09-26 22:51:55

品牌	Logo	应用领域
美国国家半导体 - NSC		驱动器
页数	文件大小	规格书
6页	147K
描述
Four Channel Push-Pull Driver

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LM18293 数据手册

March 1995

LM18293 Four Channel Push-Pull Driver

General Description

The LM18293 is designed to drive DC loads up to one amp.

Typical applications include driving such inductive loads as

solenoids, relays and stepper motors along with driving

switching power transistors and use as a buffer for low level

logic signals. The four inputs accept standard TTL and DTL

levels for ease of interfacing. Two enable pins are provided

that also accept the standard TTL and DTL levels. Each

enable controls 2 channels and when an enable pin is dis-

abled (tied low), the corresponding outputs are forced to the

signed 16 pin power DIP. The 4 center pins of this package

are tied together and form the die paddle inside the pack-

age. This provides much better heat sinking capability than

most other DIP packages available. The device is capable

of operating at voltages up to 36 volts.

Features

1A output current capability per channel

Pin for pin replacement for L293B

TRI-STATE condition. If the enable pins are not connected

Special 16 pin power DIP package

(i.e., floating), the circuit will function as if it has been en-

abled. Separate pins are provided for the main power supply

(pin 8), and the logic supply (pin 16). This allows a lower

voltage to be used to bias up the logic resulting in reduced

power dissipation. The chip is packaged in a specially de-

36 volt operation

Internal thermal overload protection

Logical ‘‘0’’ input voltage up to 1.5 volts results in high

noise immunity

Typical Connection

TL/H/8706–1

FIGURE 1. Application circuit showing bidirectional and on/off control of a single DC motor

using two outputs and unidirectional on/off function of two DC motors using a single output each.

Order Number LM18293N

NS Package Number N16A

TRI-STATEÉ is a registered trademark of National Semiconductor Corp.

1995 National Semiconductor Corporation

TL/H/8706

RRD-B30M115/Printed in U. S. A.

12 3 4 5 6

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