DC motor driver burning

fang-wei

Hi!!

I wanted to connect a DC motor to a driver ( L6205N ) and after having much fun seeing how it burns I would like to try how the motors work ...

The DC motor needs a 12 V supply and I am connecting it to the driver which is powered also a 12 V (I thought this power should be enough because it is required a Charge pump circuit to obtain more voltage)
Anyway, I couldn´t see if this voltage was enough or not because the driver burned !!
I didn´t connect it wrong or anything of the style ... [noparse]:)[/noparse]

here, some specs: L6205N ; DMOS Dual Full Bridge·, ·max 2,8 A DC;· supply voltage from 8 to 52 V
and the DC motor has a rated current of 530 mA


Had anyone ever this problem???

Thanks a lot!! my next L6205N will be thankful too!

PS: I attach u some specs, just in case

fang-wei

crgwbr

This isn't an insult, but you probably did connect something improperly. I've had the misfortune of doing quite a bit of trouble shooting. I've found that the problem normally lies in the one place you thought it could not be in. Case in point: I had a project working for a day, but the next it did nothing but burn out power supplies . I couldn't think of anything that had changed, other than there was now a 0.2 ohm short between power and ground & somebody else (not an electronics guy) put a label on the front of the box. I started checking the pcb for melted solder that would have caused a short that big. It was 12 hours before I figured out that the Label guy had taken the power switch off to put the label on. When he reconnected it, he had reversed the three leads . Like I said before, it turned out to be the one thing I had overlooked. Therefore, double check your circuit, and be thankful you didn't burn out a $36 power supply like me.

Regards,
Craig

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I would love to change the world, but they won't give me the source code

People say that if you play Microsoft CD's backwards, you hear satanic things, but that's nothing, because if you play them forwards, they install Windows.

I spent a minute looking at my own code by accident. I was thinking "What the heck is this guy doing?"

fang-wei

yes, it should be a rule to check a circuit twice ... [noparse]:)[/noparse] it worked hehe

crgwbr

great

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I would love to change the world, but they won't give me the source code

People say that if you play Microsoft CD's backwards, you hear satanic things, but that's nothing, because if you play them forwards, they install Windows.

I spent a minute looking at my own code by accident. I was thinking "What the heck is this guy doing?"