SN754410屬于集成電路（IC）的緩沖器驅(qū)動器接收器收發(fā)器。由美國德州儀器公司制造生產(chǎn)的SN754410緩沖器，驅(qū)動器，接收器，收發(fā)器邏輯緩沖器、驅(qū)動器、接收器和收發(fā)器允許隔離對某個電路的邏輯信號的訪問，以用于另一電路。緩沖器將其輸入信號（不變或反相）傳遞到其輸出，并可能用于清除弱信號或驅(qū)動負載。在布爾邏輯仿真器中，緩沖器主要用于增加傳播延遲。邏輯接收器和收發(fā)器允許在數(shù)據(jù)總線之間進行隔離通信。

1 Features

1? 1-A Output-Current Capability Per Driver

? Applications Include Half-H and Full-H Solenoid

Drivers and Motor Drivers

? Designed for Positive-Supply Applications

? Wide Supply-Voltage Range of 4.5 V to 36 V positive?

TTL- and CMOS-Compatible High-Impedance

Diode-Clamped Inputs

? Separate Input-Logic Supply

? Thermal Shutdown

? Internal ESD Protection

? Input Hysteresis Improves Noise Immunity

? 3-State Outputs

? Minimized Power Dissipation

? Sink/Source Interlock Circuitry Prevents highSimultaneous

Conduction

? No Output Glitch During Power Up or Power

Down

? Improved Functional Replacement for the SGS

L293

2 Applications

? Stepper Motor Drivers

? DC Motor Drivers

? Latching Relay Drivers

3 Description

The SN754410 is a quadruple high-current half-H

driver designed to provide bidirectional drive currents up to 1 A at voltages from 4.5 V to 36 V. The device

is designed to drive inductive loads such as relays,

solenoids, DC and bipolar stepping motors, as well as

other high-current/high-voltage loads in positive?

supply applications.

All inputs are compatible with TTL-and low-level

CMOS logic. Each output (Y) is a complete totempole

driver with a Darlington transistor sink and a

pseudo-Darlington source. Drivers are enabled in

pairs with drivers 1 and 2 enabled by 1,2EN and

drivers 3 and 4 enabled by 3,4EN. When an enable

input is high, the associated drivers are enabled and their outputs become active and in phase with their

inputs. When the enable input is low, those drivers

are disabled and their outputs are off and in a highSimultaneous

impedance state. With the proper data inputs, each

pair of drivers form a full-H (or bridge) reversible drive

suitable for solenoid or motor applications.

A separate supply voltage (VCC1) is provided for the

logic input circuits to minimize device power dissipation. Supply voltage VCC2 is used for the output

circuits.

The SN754410 is designed for operation from ?40°C to 85°C.