// Motor Drivers

L293D

The L293D is a dual H-bridge motor driver with built-in flyback diodes for inductive load protection. It drives two DC motors up to 600mA each or one stepper motor. The D suffix means diodes are built in.

// Specifications

Motor Supply

4.5V – 36V

Output Current

600mA per channel (1.2A peak)

Channels

2 H-bridges

Flyback Diodes

Built-in

Package

DIP-16

Logic

TTL compatible

// Pin Reference Table

Pin	Name	Function	Type
1	EN1-2	Enable channels 1 and 2	I/O
2	IN1	Input 1, channel 1	I/O
3	OUT1	Output 1, motor A	I/O
4	GND	Ground	GND
5	GND	Ground	GND
6	OUT2	Output 2, motor A	I/O
7	IN2	Input 2, channel 1	I/O
8	VS	Motor supply voltage	PWR
9	EN3-4	Enable channels 3 and 4	I/O
10	IN3	Input 3, channel 2	I/O
11	OUT3	Output 3, motor B	I/O
12	GND	Ground	GND
13	GND	Ground	GND
14	OUT4	Output 4, motor B	I/O
15	IN4	Input 4, channel 2	I/O
16	VSS	Logic supply +5V	PWR