Quad Half Bridge Motor Driver L293D

The Quad Half Bridge Motor Driver L293D is a 16-pin IC with four half-H drivers that can control two DC motors in both directions, or one stepper motor, from the logic pins of an Arduino, ESP32 or other microcontroller. The D version includes built-in clamp diodes that protect the chip from the voltage spikes produced by motors and relays.

Quad Half Bridge Motor Driver L293D Specifications

• Channels: 4 half-H drivers (2 full H-bridges)
• Output current: 600 mA per channel, 1.2 A peak for short pulses
• Motor supply (VCC2, pin 8): 4.5 V to 36 V
• Logic supply (VCC1, pin 16): 4.5 V to 7 V
• Inputs: TTL compatible, work with 5 V and 3.3 V logic
• Protection: internal output clamp diodes and thermal shutdown
• Package: 16-pin DIP

Quad Half Bridge Motor Driver L293D Applications

• Driving two small DC motors forward and reverse in robot cars
• Controlling one stepper motor
• Motor speed control with PWM on the enable pins
• Switching relays and solenoids
• Arduino, robotics and mechatronics classes

What's in the Box

• 1 × L293D motor driver IC

Tip: Connect all four ground pins (4, 5, 12 and 13) to ground, as they also carry heat away from the chip. Pull the enable pins (1 and 9) high or feed them a PWM signal, and expect the motor to receive a couple of volts less than the motor supply because of the driver's internal voltage drop.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.