L298

Jenuary 2000

DUAL FULL-BRIDGE DRIVER

Multiwatt15

ORDERING NUMBERS : L298N (Multiwatt 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

.

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 standard TTL logic levels and drive

inductive loads such as relays, solenoids, DC and

stepping motors. Two enable inputs are provided to

enable or disable the device independently of 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-

nection of an external sensing resistor. An additional

supply input is provided so that the logic works at a

lower voltage.

PowerSO20

®

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