SN754410 motor driver circuit diagram

Single chip microcomputer STM32L151CCU6

Photocoupler

The SN754410 quadrupled high current half-H driver is designed to provide bidirectional drive currents up to 1 A and can be designed from a voltage of 4.5 V to 36 V with a very simple high efficiency motor control circuit. SN754410 device design, inductive load relays such as drivers, solenoids, DC and bipolar stepper motors, and other high-current/high-voltage loads in positive power applications.

All inputs are compatible with TTL and low level CMOS logic. Each output (Y) is a complete totem pole with a Darlington transistor chip and a pseudo-Dallin source driver. The driver is enabled for drives 1 and 2 with 1, 2 EN and 3, 4, and 4 EN enabled. When the enable input is high, the associated driver is enabled and its output becomes active and its input phase. When the enable input is low, these drivers are disabled and their outputs are turned off and in a high impedance state. With the right data entry, each driver pair forms a complete H (or bridge) reversible drive for electromagnet or motor applications.

As you can see in the circuit diagram motor driven electronic project requires very few external components and a separate supply voltage (VCC1that is used for logic input circuits to minimize device power consumption, supply voltage VCC2 for the output circuit.