TLH9302

April 1992

LM18298 Dual Full-Bridge Driver

General Description

The LM18298 is a high voltage high current dual full-bridge

driver designed to accept standard TTL logic levels and

drive inductive loads such as relays solenoids DC and

stepping motors Two enable inputs are provided to gate the

input control signals

The emitters of the lower transistors of each bridge are con-

nected together and the corresponding external terminal

can be used for the connection of a current sensing resistor

An additional supply input is provided to accommodate con-

ventional logic supply voltages

Features

Y

Power supply voltage up to 46V

Y

2A output per channel

Y

Low saturation voltage

Y

Thermal shutdown protection

Y

Logical ‘‘0’’ input voltage up to 15V

(High noise immunity)

Y

Pin for pin replacement for L298N

Applications

Y

DC and stepper motor drivers

Y

Relay and solenoid drivers

Block

Connection Diagrams

TLH9302 – 1

TLH9302 – 2

TO 220-15

Order Number LM18298T

NS Package Number TA15A

C1995 National Semiconductor Corporation

RRD-B30M115Printed in U S A