Forum Post: RE: LMZ13606H/ LMZ23606H
Hi AlexeyWe are still a couple months away from having good quantities of sample units. In order to get you units in the near future it would be helpful to know:1) How many units are needed2)...
View ArticleForum Post: RE: Evaluation BOARD SM72445
Thanks for replying.My friend. I have a few more questions:fourth question: In AN 2241, you remove the protective function of the OVS? Why? Fifth question: I did tests with the SM72442 without using...
View ArticleForum Post: LM2852XMXA no load current
HiWould like to check what is the typical current for a LM2852 device at no/low load.There is a Quiescent current value, my understanding is this value applies when the part is disable via the "enable"...
View ArticleForum Post: RE: BQ2002GPN : Application circuit.
Hi charles,Well, thanks for the information.Well i have gone through the EVM DV2002L2/TL2 Development Document. But i did not get how the pulse trickle charging & Top-off charging is...
View ArticleForum Post: RE: 4.2V Voltage Detection
Hi Darwin,Thanks for the prompt reply.As per the datasheet, TPS3839K50 has push-pull reset output. In my ckt I want to trigger low battery indicator at 4.2V instead of RESET.As it has push-pull reset...
View ArticleForum Post: RE: UCC2806 Pspice model
I'm sorry I misread your question. I thought that you were asking about the differences between the UC1846 and a UC2846.Your best source for the differences between the UC1846 and the UC2806 will be...
View ArticleForum Post: Voltage for LED question
Hey all, I'm pretty new to all this but I had a simple question. The voltage that I'll be supplying to the LED (VLED), I should just use the common VCC (3V) right? If it ends up being 5V it shouldn't...
View ArticleForum Post: LM2840 100mA step down inductor question.
Hi to all.Hoping someone can help out.In the datasheet for the LM2840 there are a couple of Application ccts , starting on page 9. I'd like to know how these inductor values are calculated ,...
View ArticleForum Post: RE: TPS61131 SEPIC output problem
Hi Luis.It's been a while since I looked a sepic , but from what I remember you can use coupled or individual inductors. If they are individual though the calculated inductance is doubled. If coupled...
View ArticleForum Post: RE: TPS40170 troubles
Hi Vincent.It's possible that the GATE-SOURCE voltage of the top FET is being exceeded. with 24V on the chip and the bootstrap action may well exceed the 20V rating.You should probably put series...
View ArticleForum Post: IT gas gauge incorrect programming in ROM mode at production
User programs DFI file into gas gauge device in ROM mode at production flow.At that time, device becomes unrecoverable condition (no communication etc...) if user programs incorrect data and exit the...
View ArticleForum Post: RE: LP3950 LED Driver
Leonhard,Sorry for the slow response to this.In the Table 9, there are default bits shown below each bit name. So for example EN_AGC = 1 by default and EN_SYNC = 0 by default.When using the default...
View ArticleForum Post: RE: efficiency vs switching frequency
With all other variable constant, efficiency decreases with higher input voltage. That is due to switching losses in the FETs.
View ArticleForum Post: RE: TPS63020 buzzing and failure
You might post your schematic and waveforms that show what your setup is and how it behaves.Typically, audible noise is from ceramic cap's peizoeletric effect, which is well explained on the web. Use...
View ArticleForum Post: RE: BQ20Z95 with LTC4100-Ringing at the end of charge
Hi Tom,Thank you very much for your time. Your suggested solution did solve the RINGING problem.Have a good weekend Tom!Thanh Phan
View ArticleForum Post: RE: Setting up Advanced bqMTester
Ok the updates occurred I saw 1% Max error and Update Status went to 0x0E after a further rest period.I decided to do the second cycle but unfortunately it seemed I had to manually update the input...
View ArticleForum Post: RE: TPS2394, Timing
Hello Artem,thank you for your reply.I agree, the long insertion time based on very high capacitive load 47000µF.That capacitor we need for current buffering for a galvo motor. Galvo motor is very...
View ArticleForum Post: bqEasy support for BQ34z110
Dear TiIt seems from the documentation that the BQ34z110 lead Acid devices are not supported with bqEasy( only litium parts) ,is this perhaps planned as it seems that this tool helps a person to get...
View ArticleForum Post: RE: TPS2490
It might help to see the schematic. Not having a schematic to work from, it looks like this might be "normal" operation. As a matter of explanation, consider that the current limiter is a feedback...
View ArticleForum Post: RE: 4.2V Voltage Detection
Hi Amit,You can always use higher vlaue resistors so that the resistor divider in series is 4M Ohms as the fixed version uses. This will only add 1uA to your system. If you would like less components...
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