Guide to the TL494 PWM Chip

Quick and basic guide to understanding the popular TL494 pulse width modulation chip. I explain what all the pins do and show how to connect them up......I hope you find it useful.
Correction: The feedback pin is there to stabilize the error amplifiers. Simply connect it as shown in the datasheet.
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Timecodes
0:00 - Intro
0:16 - Supply voltage
0:23 - Internal Oscillator
1:14 - Output transistors
1:32 - Output control
2:06 - DTC - Dead Time Control
3:22 - Soft start
4:42 - Output voltage control
5:34 - Over current protection
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TL494 Datasheet
www.ti.com/lit/an/slva001e/sl...

[@michaelsintros292]

Perfect video. I was looking for info about TL594 but it looks like this chip uses basically the same principles, so this will prove immensely helpful.

[@peters9929]

Fantastic info , no BS just simple facts thanks for doing video , well deserved sub

[@evgeniytoropov9455]

Отличная информация, всё наглядно и понятно.

[@aravindadas567]

very nice information in this video about all application of TL494 ic.

[@yahyanasiri7062]

excellent

[@mahoneytechnologies657]

This is a great technique to explain how to use this IC, NOW CAN YOU DO THIS FOR ABOUT 100 million more ICs , or can we get all of the IC manufacturers to do this !

[@ElectricMonkeyBrain]

lol. well I thought I could do this for popular chips. Know any popular chips?

[@mahoneytechnologies657]

Will the Ubiquitous NE555, HC4046 PLL, the LTC699X Family of Timer Blox parts ( there is a great online design tool, and a ton of App circuits, I wrote many of them ),
The LTC CURRENT SENSORS ( just look at LTC note AN105 to get Inspired), speaking of App notes, Jim William’s App notes’, any of them, are outstanding in every sense - AN65 and AN47 should be owned and studied every Engineer and Technician! They teach how to think like a good Engineer, I worked with Jim when he wrote AN65, that’s where I got my real electronics Education!
This would be A good Start.
You present your material very nicely, simple, in little Bites and very clearly explained, to be able to do this is a real Tallent, Keep it up!
The reason I list the parts that I did is because each of these parts can be applied to so many
different types of circuits. Like the NE555, when it hit the Market it was presented in a brocher showing it being used in 10 very different types of circuits, I bought ten of them when I was in the USAF AND BUILT all ten Circuits and more, what A time!

[@ElectricMonkeyBrain]

Actually yes I was thinking of the 555. HC4046 is also interesting. Not sure when I will get to them though. I seem to be slow at producing videos, I am still learning. @@mahoneytechnologies657

[@mahoneytechnologies657]

I was thinking of doing some PCBs for studying these three parts’ now I Will.

[@ziadfawzi]

Thank you so much

[@jonesapuluye3382]

Short and straight to the point, it just answered questions that has bothered me for a very long time ... (Over voltage/current protection)
Thanks a bunch for sharing ✌️😇

[@ElectricMonkeyBrain]

thanks. short and to the point was my aim :D

[@bhuiyanimam7657]

Excellent video, would love it if you made them on more ICs, like 555 and TL431, etc

[@t1d100]

Wow! Super production. Super teaching. And, a powerful IC that I did not know about. Kudos!

[@ElectricMonkeyBrain]

thanks a lot

[@pcbekri340]

thank you soooo much man you are great

[@Paul_VK3HN]

Excellent explanations, what a neat little chip! Would like to see a video on how later TI chips improved on TL494, for example, TL598

[@murraymadness4674]

Thank you. I'm trying to increase the voltage and amps in this cheap dc boost board that keeps blowing up. So from what I understand, it should work just the same if I increase the ratings of the mosfet and diode.

[@steventaylor6294]

Thank you. Easy to follow, good pace.

[@yasirshahzad3732]

Very well explained

[@Taylor_26GE93]

Great video, just stubbled across your channel and subscribed immediately. Keep it up!

[@derekschwontz9072]

Great tutorial

[@ElectricMonkeyBrain]

thanks a lot

[@ChrisHalden007]

Great video. Thanks

[@ElectricMonkeyBrain]

Glad you liked it

[@theinnovati0nlab782]

Very nice!
I am currently working on a high power 5000W synchronous dc to dc boost converter system and I am planning to use TL494 as well.
Great video.
Success wishes!
👍👍
The Innovati0n Lab💥

[@dalenassar9152]

At about timestamp 4:00 is the common connection of the resistors connected to the bottom of the capacitor? There is no connection dot there.
THANKS FOR THIS VIDEO...my first look at the TL494...
--daLE

[@hichamtassi1753]

Hi there, any clues on the PIN3 ? thanks