The LM/04HV are monolithic switching regulators de- VIN Range 6V to 42V (LM) .. the front page of this datasheet, the inductor and LED can. Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2All trademarks are the property of. The LM/04HV is a buck regulator derived controlled cur- .. Reproduction of TI information in TI data books or data sheets is permissible.

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I seems dropping all this energy on the diode would be inefficient Supply voltage for the system is a 12VDC switching psu Which brings up another question: I know its not much, and the board is kind of messy, but it gets the job done And upon applying power everything repeated And to my surprise it works the first time I turn the power on.

From the LM datasheet this seems to be a suitable diode for use in this situation This board is being use just as a proof of concept, since I have never used this chip before The inductor is a 22uH 1A inductor The inductors datasheet is here Which is why I have the input voltage at 12VDC This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.


So conduction dissipation alone becomes 0.

Operating frequnecy is about kHz, set be a k resistor Electro Tech l3404 an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets. Forums New posts Search forums.

You must log in or register to reply here. Click here to register now. I unplugged the power everything cooled down promptly Ubergeek63 Well-Known Member Dec 28, Would a higher rated diode with a larger package be of any use to help dissipate heat more effectivly, and hope lm34404 keep it operating normally Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at I’d appreciate any comments or previous experience on this topic Or should I try to match my source more carefully to my load?

If, on the other hand, you are running from 25V you said you are using 30V diodes you have 3. I was hoping this design would be an energy efficient solution No where near the designed mA After letting it run at for a few moments longer it settled at about 16mA and I noticed that they recirculating diode is hot to the touch If, for instance, the LED is at 3.


Thread starter cjurczak Start date Dec 27, Just saying hello Started by MichaelaJoy Yesterday at 6: Welcome to our site!

By continuing to use this site, you are consenting to our use of cookies. Ok now for the problem Started by fastline Yesterday at 8: Sorry for the delayed response, I’m been on the road and I didn’t have anymore specifics To participate you need to register.

Media New media New comments Search media. Potentiometer Questions Started by norbss Yesterday lm34004