Forum Post: RE: LM22670 adequate for Conversion +5V - -3.3V, 2A ?
Hi Christian,I can confirm that I_max = 1.65A would work for +5V->-3.3V. I've attached the Cuk topology based on the LM3481 schematic here with as many parts from Digikey as possible. (Please visit...
View ArticleForum Post: RE: About TPS40400 current sense
HI Na,Thank you for your reply!Best Regards,Masa0301
View ArticleForum Post: RE: Li-poly USB charger and boost component selection
Hello,The BQ24165 looks like it could be a good fit for you requirements.Thanks,
View ArticleForum Post: bq24171 charge timeout
Hi,I have a design working with the bq24171 and have set the charger timeout to 20 hours and it seems to work fine, but I have recently noticed that the datasheet states that the timeout should be a...
View ArticleForum Post: RE: dcdc converter.
Goodmorning and Thanking you Dear Anston, I have been arranging the Inductor for trials, and i will get back to you sooner. I...
View ArticleForum Post: RE: LM5101A High Side Driver
(Please visit the site to view this file)Hello SouravThank you so much for clearing my doubts on the LM5101A. Clearly i see, i would not be able to use this as my MOSFET gate drive.Regarding your...
View ArticleForum Post: RE: BQ24167EVM-741-X
There is no voltage drop at EVM. Measured voltage at EVM is 4.8V.
View ArticleForum Post: RE: Symmetric 5v from symmetric 30v supply
What diode associated with the T1 primary? There is no need for a transformer/overwinding the voltage drop on the negative output is caused by the capacitor being charged via the diode so if the...
View ArticleForum Post: RE: USB Charging Detectors TPS2540, TPS2541, TPS2543, TPS2511
If the application is for a stand alone USB charger (DCP auto), will the TPS2511 provide that same level of compatibility to mobile devices as the TPS2546?What is the difference between the TPS2511 and...
View ArticleForum Post: RE: Regarding TPS27082's on/off operation
Of course, VDD are connected to Pin14.
View ArticleForum Post: RE: TPS65251-Q1 Filure Rate of internal each functional blocks
Hello,Please any one respond above my question.Regards.
View ArticleForum Post: RE: Symmetric 5v from symmetric 30v supply
Hi David,I was referring to the B260B Diode present to the immediate right of the IC between ground and the SW node. In either case, it looks like you've achieved the ideal solution for your circuit....
View ArticleForum Post: RE: Minimum drive current out of the BQ29330 n-channel FET driver...
Jeffrey,The spec is a 4V rise in 400us typical. I would estimate the drive current to be 47uA typical.RegardsTom
View ArticleForum Post: LM2735 question
Hi all, i'm approaching this Ic for an application that require this parameters:Vin: 3,3 - 4,2V (powered by LiMn battery)Vout: fixed at 6VOutput current: fixed as high as possibile, 2,5Amps it's good,...
View ArticleForum Post: RE: bq24171 charge timeout
That is the answer I was hoping for, as the timer accuracy is not very important to me.Many thanks,Keith.
View ArticleForum Post: tps5410 start-up problem
I've realized the circuit which is described in evaluation module document of tps5410 which is slvu185.pdf and the circuit is in Figure20.TPS5410EVM-203Schematic the 5V output version. I have realized...
View ArticleForum Post: RE: Inquiry regarding TTDM mode of BQ24090
Floating TS pin or pulling High puts part in TTDM “Charger” Mode which disables TS monitoring, all timers and charge termination. Pull the pin Low disable the IC. If NTC sensing is not needed,...
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