Electronics > Projects, Designs, and Technical Stuff
PSA: do not use the TPS61099 boost reg in your designs
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Daixiwen:
I can relate to that. I had some problems several times with some components from Benchmarq and was told by TI that after their merger with Benchmarq the engineers that worked on the BQ components weren't there any more and TI couldn't offer any support on them.
So I can't say I've had a good experience with TI's support either ;)
schmitt trigger:
I would say something similar happened to Unitrode when it was absorbed by TI.

Unitrode had *many* outstanding and legendary Engineers. Their app notes were superlative. The products performed, and any pitfalls were clearly spelled out

Back in the 90s I went to a power seminar. The speaker was Laslo Balogh (sorry if the spelling is incorrect) and he was pure genius.

kony:
I wouldn't speak so highly about Unitrode. Literally the only switcher chip I had problem with from TI portfolio was inherited acient unitrode universal switchmode controller (don't remember exact PN anymore). Noise sensitive as hell.
schmitt trigger:
No one is perfect............
As I mentioned in my earlier post, Unitrode parts had their shortcomings clearly spelled out. Which were several, because of the "ancient" technology.
Their seminars were full of design tips, based on an excellent analysis, to circumvent those pitfalls.

That was one of their greatest strengths, which unfortunately TI has not followed through

Hydron:
When we started having large numbers of TI DSPs go bad in service (having used them in 10s of thousands quantities for years, so we knew when something was up) they refused to do anything useful to help track down the issue.

Got someone to analyse them and sure enough, very poor wirebond quality compared to earlier samples, bad enough to cause reliability issues - the parts should have never made it out of TI's door. Now in the process of designing them out of everything...
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