L298 查看數據表（PDF） - STMicroelectronics

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L298

DUAL FULL-BRIDGE DRIVER

STMicroelectronics 

®

L298

..... 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 standardTTL logic levels and drive

inductive loads such as relays, solenoids, DC and

stepping motors. Two enableinputs are provided to

enableor 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-

BLOCK DIAGRAM

DUAL FULL-BRIDGE DRIVER

Multiw att15

PowerSO20

O RDERING NUMBERS : L298N (Multiwatt Vert.)

L298HN (Multiwatt Horiz.)

L298P (PowerSO20)

nectionof an externalsensing resistor. Anadditional

supply input is provided so that the logic works at a

lower voltage.

Jenuary 2000

1/13

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