LM340TS DATASHEET PDFJune 25, 2020
LMT/NOPB Texas Instruments Linear Voltage Regulators 3-TERMINAL POS REG datasheet, inventory, & pricing. LMT LMT5 P+. 45 Units/Rail. LMT LMT12 .. At the time of printing, the military datasheet specifications for the LMK/ Datasheet search engine for Electronic Components and Semiconductors. LMTS data sheet, alldatasheet, free, databook. LMTS parts, chips, ic.
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Haven’t received registration validation E-mail? User Control Panel Log out. Forums Posts Latest Posts. Forum Themes Elegant Mobile. Essentials Only Full Version. LM is the replacement for the LM, which is out of production. If you need LMT-5 you can get them from www.
I assume you measured the output of the supply and are measuring 0V, is that correct? Was this a wiorking system you are repairing or is it ione you built?
If you built it two possible problems is the transistor not install properly or D7 in backwords. I believe some pins are labeled wrong in your circuit. I think pin 2 is the ground pin, but please verify as I am too lazy to dig out the datasheet right now. I think pin 2 is the ground pin, [ Where did you get this circuit? You can’t connect a normal LED across a 5 volt regulator’s output without drawing a huge amount of current.
I’d expect that the LED would light very brightly but very briefly. There’s no way in the world that you should need two separate regulators, let alone needing a current boost circuit, to power a PIC and an LCD module.
IIRC, some manufacturers used an alternate pinout for their ” regulators. Standards are great; that must be why everyone seems to have their own. Download datasheets for and LMT fro www.
Why on earth are the two batteries wired in series? Are they supplying something else as well?
If not, then the second battery is totally wasted. It would be far better to connect it in parallel. I also post at: Links to useful PIC information: Posting images, links and code – workaround for restrictions.
EricG Isn’t that what I said 20 minutes earlier? I guess you’re just backing me up.
If enough of us say it, he might start to believe it. I should have included the second post with datasheet posting. I have to say that I probably never saw such a mis-standard thing maybe one of the few cases! I expect by now most OP’s are aware that the ‘rating’ of a person answering his question is only based upon the number of posts the person has made and is no way an indication of their qualifications or abilities.
Some are just sarcastic one liners, which waste everyone’s time, but just datasheeh up the posters post score. Some are highly detailed explanations, which to a ‘novice’ looks very informed, but are quite often totally wrong. Others have nothing to do with the topic.
If I was ‘novice’ [ in my dreams] I lm340td, I would most likely go for the solution that is posted at least more than once. That would give me a confidence ‘majority’ factor.
difference between LM7805CT and LM340T-5 as voltage regulators?
I hope you will do the same thing for me, if I screw up, let know, I can handle constructive criticism. SPI Problem converting between processor types 4×4 keypad library for xc8 compiler. Debug breakpoints automatically disabled 16F88 datazheet set internal oscillator frequency beyond Why does my PIC32 run slower than expected? Attached Image s 1 21 Replies Related Threads. Morgan Hill, CA Status: While it’s always good to learn from one’s mistakes, it’s much easier to learn from the mistakes of others.
Please don’t PM me with technical questions. I’ll be quite happy to help if I can on the forums. I guess you’re just backing me up ; I also post at: