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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LM3404 Buck LED driver IC overview

For a better experience, please enable JavaScript in your browser before proceeding. I threw together a small PCB to test and make sure I have everything working.

datashfet So in an effort to cool it off while still running I blew onto the board Media New media New comments Search media. Or should I try to match my source more carefully to my load? I was hoping this design would be an energy efficient solution Up to about 25mA Electro Tech is an online community with overmembers who enjoy talking about and building electronic circuits, projects and gadgets.

Supply voltage for the system is a 12VDC switching psu This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. If, for instance, the LED is at 3.


LM overview, product comparison and replacement search

I unplugged the power everything cooled down promptly Articles Top Articles Search resources. If, on the other hand, you are running from 25V you said you are using 30V diodes you have 3.

This board is being use just as a proof of concept, since I have never used this chip before Started by fastline Yesterday at 8: Welcome to our site! I’d appreciate any comments or previous experience on this topic Forums New posts Search forums.

Operating frequnecy is about kHz, set be a k resistor You must log in or register to reply here. Ok now for the problem Thread starter cjurczak Start date Dec 27, Just saying hello Started by MichaelaJoy Yesterday dwtasheet 6: The inductor is a 22uH 1A inductor The inductors datasheet is here Would a higher rated diode with a larger package be of any use to help dissipate heat more effectivly, datashdet hope to keep it operating normally And upon applying power everything repeated Sorry for the delayed response, I’m been on the road and I didn’t have anymore specifics After letting it datashfet at for a few moments longer it settled at about 16mA and I noticed that datahseet recirculating diode is hot to the touch Thanks for all your time, and help I know its not much, and the board is kind of messy, but it gets the job done I seems dropping all this energy on the diode would be inefficient Which brings up another question: Replacing a 4 pin leaded lm3440 with a 2 pin Started by gkmaia Yesterday at From the LM datasheet this datashret to be a suitable diode for use in this situation And to my surprise it works the first time I turn the power on.


So conduction dissipation alone becomes 0. Potentiometer Questions Started by norbss Yesterday at Eventually I’d like to incorporate it into a larger project, but not unless I can iron out this bugs Which is why I have the input voltage at 12VDC No where near the designed mA Ubergeek63 Well-Known Member Dec 28, By continuing to use this site, you are consenting to our use of cookies.

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