Due to the bipolar drive, the motor coil is fully utilized to enable into the motor can achieve the best drive. It is driven by a double full bridge mode. L298 is used to drive the power output of the stepper motor. Drive signal (A, B, C, D) and motor current settings. L297 is a stepper motor controller that is used to generate two-phase bipolar. It is driven by a constant current mode, and the peak current of each phase can reach 2A. L297 and L298 can be used to make a two-phase bipolar stepper motor drive circuit.
#L298N MOTOR DRIVER MODULE DATASHEET DRIVER#
L298 is a high-voltage and high-current dual full-bridge driver with two H-bridges. The phase required by the stepping motor is generated inside the circuit, which greatly reduces the burden on the CPU.
A notable feature of l297 is that only clock, direction, and mode input signals are required. The on-chip PWM chopper circuit allows switching control of the winding current.
There are three drive modes: half-step, full-step, and wave. It is suitable for the control of bipolar two-phase stepper motors or unipolar four-phase stepper motors. Standard stepper motor driver using L297 and L298 IC III L297 and L298 Hardware circuit 3.1 L297 Overview