L298n Dc Motor Driver Circuit6/11/2023 ![]() ![]() The Enable pins ENA and ENB are speed control pins for motor A and B respectively. Input pins IN1, IN2, IN3 and IN4 are for controlling the direction of rotation of the motors where IN1 and IN2 control the direction of rotation of motor A while IN3 and IN4 control direction of rotation of motor B. In this case the 5V pin will be used as input as we need to connect it to a 5V power supply in order for the IC to work properly. However if the supply voltage is greater than 12V the jumper should be disconnected to avoid destroying the onboard 5V regulator. If the motor supply voltage to the module is up to 12V, the 5V regulator is enabled so that we can use the 5V pin as output for powering a microcontroller like an Arduino board. This voltage is controlled by either enabling or disabling a jumper. ![]() The driver can drive motors with voltages from 5V to 35V with a peak current of 2A. The module has an onboard 5V regulator for controlling the voltages supplied and used by the motor connected to the L298N motor driver.
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