L293D MOTOR DRIVER CIRCUIT DATASHEET DRIVER
L293D MOTOR DRIVER CIRCUIT DATASHEET FULL

Due to the bipolar drive, the motor coil is fully utilized to enable into the motor can achieve the best drive.

L293D MOTOR DRIVER CIRCUIT DATASHEET FULL

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. Logical вЂњ0вЂќinput voltage up to 1.5V( high noise immunity).(Must be used with an external 5v logic supply when drive voltage is greater than 12v to protect the chip) Built-in stabilivolt tube 78M05 can be used to obtain 5v from power supply.Able to drive a two-phase stepper motor, four-phase stepper motor or two DC motors.2 enable control terminals to enable or device without inputting signals.L298 internal logic diagram (half of the diagram) It sets an additional power input terminal to make the logic part work at low voltage.ДЇigure 1. The emitters of the two low-end transistors of each bridge are connected together and led out for external detection resistance. It accepts standard TTL logic level signals and can drive stepper motors with a voltage of 46V and 2.5A per phase or below.Д®ach bridge has an enable input, which allows or prohibits the device to work without being affected by the input signal.

L293D MOTOR DRIVER CIRCUIT 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

L293d motor driver circuit datasheet