¿Qué es y cómo funciona un L293D?

Por: wadmin 08/09/2021 28 Comentarios Blog de "La Electrónica",

PUENTE H L293D

 

 

 

 

El circuito integrado L293D es un controlador de motores de corriente directa, el cual nos permite hacer funcionar dos motores DC al mismo tiempo y nos proporciona el control de forma independiente de la dirección de giro de cada motor. 

 

 

 

Circuito integrado L293D

 

 

 

¿QUÉ MOTORES DC PUEDO CONTROLAR?

 

 

 

Este circuito integrado nos permite utilizar motores con un voltaje de funcionamiento inferior a 36 voltios y una corriente de funcionamiento no mayor a 600 mili amperios.

 

 

 

Motor DC 130

 

 

 

¿CÓMO FUNCIONA ESTE CIRCUITO INTEGRADO?

 

 

 

El funcionamiento de este controlador de motor L293D se basa en el principio básico de Puente H. Esta configuración permite que el voltaje fluya en cualquier dirección, se utiliza para hacer funcionar motores en sentido horario como en sentido antihorario.

 

 

 

Diagrama de conexiones

 

 

 

Este CI L293D cuenta con 2 puente H incorporados, actúa como un amplificador de corriente ya que toma una señal de baja corriente en su entrada y proporciona una señal de corriente más alta en la salida para impulsar diferentes cargas, por ejemplo; motores paso a paso y motores DC.

 

 

 

 

DIAGRAMA DE PINES

 

 

 

 

Pin 1 (Habilitador 1,2): cuando el pin de habilitación está alto (1 lógico), la parte izquierda del IC funcionará; de lo contrario, no funcionará. Este pin también se denomina pin de control maestro.

 

Pin 2 (Entrada 1): cuando el pin de entrada está alto (1 lógico), el flujo de corriente pasará por la salida 1.

 

Pin 3 (Salida 1): este pin de salida debe conectarse a una de las terminales del motor A.

 

Pin 4 y 5 (Tierra): estos son pines de tierra.

 

Pin 6 (Salida 2): Este pin de salida debe conectarse a una de las terminales del motor A.

 

Pin 7 (Entrada 2): cuando el pin de entrada es alto (1 lógico), el flujo de corriente pasará por la salida 2.

 

Pin 8 (Vcc 2): este pin se utiliza para suministrar voltaje al motor.

 

 

 

Pines de L293D

 

 

 

Pin 9 (Habilitador 3,4): cuando el pin de habilitación está alto (1 lógico), la parte derecha del IC funcionará; de lo contrario, no funcionará. Este pin también se denomina pin de control maestro.

 

Pin 10 (Entrada 3): cuando el pin de entrada está alto (1 lógico), el flujo de corriente pasará por la salida 3.

 

Pin 11 (Salida 3): este pin de salida debe conectarse a una de las terminales del motor B.

 

Pin 12 y 13 (Tierra): estos son pines de tierra.

 

Pin 14 (Salida 4): este pin de salida debe conectarse a una de las terminales del motor B.

 

Pin 15 (Entrada 4): cuando el pin de entrada está alto (1 lógico), el flujo de corriente pasará por la salida 4.

 

Pin 16 (Vss 1): este pin es la fuente de alimentación del circuito integrado.

 

 

 

 

 

28 Comentarios

profe delia:
15/10/2023, 09:06:09 PM
Responder

Muy buena información sencilla y clara como deberían ser las explicaciones. gracias por los datos sigue adelante

pepe:
01/11/2024, 02:03:13 PM
Responder

el profe me dijo que le falta algo y nose q es ayudaaaaaaaaa

Anónimo.o:
28/11/2025, 01:15:49 PM
Responder

Unos diodos en el motor

Ashley Holder:
03/12/2025, 08:41:06 AM, playastronaut.cc
Responder

Wow, this article is pleasant, my sister is analyzing these kinds of things, so I am going to convey her.

Emily Austin:
06/12/2025, 11:02:19 AM, zolomeds.shop/buy-zoloft.html
Responder

Ahaa, its nice dialogue concerning this post here at this webpage, I have read all that, so at this time me also commenting here.

Julia Tucker:
06/12/2025, 06:41:42 PM, fluco.store/fluconazole-100-mg.html
Responder

Ahaa, its pleasant discussion regarding this article here at this blog, I have read all that, so at this time me also commenting at this place.

George Morgan:
Responder

I just could not leave your web site prior to suggesting that I actually loved the standard information an individual supply to your guests? Is gonna be back incessantly in order to investigate cross-check new posts

Brian Nolan:
Responder

I enjoy what you guys are up too. This type of clever work and exposure! Keep up the terrific works guys I've added you guys to my personal blogroll.

Krystal Anderson:
09/12/2025, 02:28:49 AM, doxycare.shop
Responder

Greetings! Very useful advice within this post! It's the little changes that make the most significant changes. Thanks for sharing!

Kayla Martinez:
Responder

I'll immediately take hold of your rss as I can't in finding your e-mail subscription hyperlink or newsletter service. Do you've any? Please let me understand so that I may subscribe. Thanks.

Nicolás Maduro:
22/01/2026, 07:14:52 AM
Responder

8====D

William Ingram:
30/01/2026, 01:16:15 PM, medshop24h.top/tetracycline
Responder

Hi, I do believe this is a great web site. I stumbledupon it ;) I may return once again since i have bookmarked it. Money and freedom is the greatest way to change, may you be rich and continue to help others.

Donna Dudley:
30/01/2026, 01:17:35 PM, medshop24h.top/cefixime
Responder

I like the helpful information you provide in your articles. I will bookmark your weblog and check again here regularly. I'm quite certain I will learn many new stuff right here! Best of luck for the next!

Katelyn Evans:
30/01/2026, 08:38:09 PM, propeciaa.sbs/dutasteride.html
Responder

Thank yyou for the auspiciious writeup. It iin fac wass a amusemet account it. Loook advnced too faar adddd agreeable feom you! By tthe way, hhow caan wee communicate?

Robert Johnson:
Responder

I every time spent my half an hour to read this weblog's posts every day along with a mug of coffee.

Luke Brown:
Responder

Ahaa, its fastidious conversation on the topic of this piece of writing at this place at this weblog, I have read all that, so now me also commenting here.

Lori Salinas:
01/02/2026, 10:28:42 PM, kamagras.shop/vardenafil
Responder

I will right away take hold of your rss feed as I can’t find your e-mail subscription link or newsletter service. Do you’ve any? Kindly let me recognize in order that I may just subscribe. Thanks.

Dillon Barajas:
02/02/2026, 02:50:35 PM, bluepillpoint.shop
Responder

Hello my loved one! I wish to say that this article is amazing, nice written and come with approximately all vital infos. I would like to look extra posts like this .

Melissa Ellis:
04/02/2026, 10:53:42 AM, metamedline.shop
Responder

Greetings! Very useful advice within this post! It's the little changes that will make the most important changes. Many thanks for sharing!

Brandon Brown:
05/02/2026, 02:15:28 PM, gastromedix.shop/ranitidine.html
Responder

I don't even know the way I ended up here, but I believed this put up was great. I don't know who you might be but definitely you're going to a well-known blogger for those who are not already. Cheers!

Andrew Cox:
05/02/2026, 02:15:46 PM, gastromedix.shop/mebeverine.html
Responder

Great write-up, I'm regular visitor of one's website, maintain up the excellent operate, and It's going to be a regular visitor for a lengthy time.

factory planner:
07/02/2026, 12:08:24 AM, endfieldcalculator.org
Responder

What a wonderful article.Many thanks for supplying this info.

the freak circus:
07/02/2026, 12:08:40 AM, the-freakcircus.com
Responder

I appreciate the effort put into this informative post.

volume shader bm:
07/02/2026, 12:09:02 AM, volumeshader.pro
Responder

What a fantastic read!

el impostor juego:
07/02/2026, 12:09:36 AM, impostorjuego.org
Responder

Look forward to seeing more of your blog.

Howard Grant:
13/02/2026, 08:01:59 PM, arthromedix.online/indomethacin.html
Responder

I am sure this piece of writing has touched all the internet people, its really really fastidious article on building up new webpage.

Alisha Smith:
14/02/2026, 09:37:27 AM, minoximed.online
Responder

Ahaa, its good dialogue concerning this paragraph at this place at this webpage, I have read all that, so at this time me also commenting here.

Richard Duffy:
14/02/2026, 09:39:09 AM, minoximed.online
Responder

I visited various web pages however the audio quality for audio songs current at this website is genuinely wonderful.

Deja tu comentario