All the enable and input pins in this IC work with 5V TTL logic to make the connection simple with different types of microcontrollers. Similarly, enable pins can also be used to make all the outputs active simultaneously. Here, current sense pins are connected to the ground terminal but we can also include a low-value resistor where its voltage reading is relative to the current. L298 Motor Driver ICĮach bridge in this IC includes two current sense pins like CSA & CSB and enable pins like ENA & ENB. Here, One H Bridge is used to switch the polarity to control the motor direction whereas pair of H bridges are used for controlling a bipolar stepper motor. L298 IC includes four separate power amplifiers where two amplifiers can form H-bridge A and the other two types of amplifiers can form H-bridge B.
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