L298

Jenuary 2000

DUAL FULL-BRIDGE DRIVER

Multiw att15

O RDERING NUMBERS : L298N (Mult iwatt Vert. )

L298HN (Multiwatt Horiz. )

L298P (PowerSO20)

BLOCK DIAGRAM

.

OPERATING SUPPLY VOLTAGE UP TO 46 V

.

TOTAL DC CURRENT UP TO 4 A

.

LOW SATURATION VOLTAGE

.

OVERTEMPERATURE PROTECTION

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LOGICAL ”0” INPUT VOLTAGE UP TO 1.5 V

(HIGH NOISE IMMUNITY)

DESCRIPTION

The L298 is an integrated monolithic circuit in a 15-

lead Multiwatt and PowerSO20 packages. It is a

high voltage, high current dual full-bridge driver de-

signed to accept standardTTL logic levels and drive

inductive loads such as relays, solenoids, DC and

stepping motors. Two enableinputs are provided to

enable or disable the deviceindependentlyof the in-

put signals. The emitters of the lower transistors of

each bridge are connected together and the corre-

sponding external terminal can be used for the con-

nectionof an externalsensing resistor. An additional

supply input is provided so that the logic works at a

lower voltage.

PowerSO20

®

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