4A Full Bridge Motor Driver Circuit | Controller Circuit

Tuesday, February 16, 2010

4A Full Bridge Motor Driver Circuit


L298
FULL-BRIDGE DRIVER
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 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
enable or disable the device independently of the input
signals. The emitters of the lower transistors of
each bridge are connected together and the corresponding
external terminal can be used for the connection
of an external sensing resistor. An additional
supply input is provided so that the logic works at a
lower voltage.

Feature
- 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)
- Supply Voltage 50 V
- Logic Supply Voltage 7 V

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