Forum Post: RE: 10 Amps @ 90 Vdc with the TL783
Thank you for the reply Ron!Is there a switching type IC available that I could use instead of the TL783? And would it be possible to use my IGBT module with it? I found these parts in an old CNC...
View ArticleForum Post: RE: TPS40170 Question Regarding Cldrv
Hi Harold,I do not expect any issues with these changes. I am assuming Cldrv is a capacitor on the gate drive of the low-side FET. Instead of changing Rscp to 10k you could also completely remove the...
View ArticleForum Post: RE: bq34z100 Quiescent Current
HarisWhat is your theory for using VEN to disable the device? The output can be used to disable the voltage sense circuit, but it does disable the device. Tom
View ArticleForum Post: RE: Buck regulator using LM25085 with strange waveform at SW node
Hello Almerindo,I believe at present, there is not enough ESR in the output capacitor for the required ripple injection in this circuit and the circuit enters into a kind of short burst mode. As you...
View ArticleForum Post: RE: BQ34Z100 VEN ON with REG 30mA Current . Why increase Current...
Dear Tom Thank you very much. I understood VEN structure. Thanks and RegardJasper in Japan
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Forum Post: DC to DC boost converter or something else equivalent
I am looking for DC to DC boost converter that will replace the transformer job in the above circuit.The battery and resistor simulates a typical power source that I have (that is 1.4V or 4.5V...
View ArticleForum Post: RE: TPS54325/Start-up failure
I don't know if you solved your problem but we were having some similar start up problems with this part. We ended up changing the SS capacitor to 33nF. The value wasn't critical but it had to be lower...
View ArticleForum Post: RE: LMZ13608 Output is not as what I want !
(Please visit the site to view this file)Hello Juan:I've packed the ckt diagram and pcb print in the zip file.hope could find the solution.Thanks !Marshall Wu
View ArticleForum Post: RE: test for application note pmp2890
The layout is likely the source of your issues. Using this method for prototyping may be quicker and easier but introduces so many additional factors which can cause problems. The connections to the...
View ArticleForum Post: BQ24726 already phased out?
Hello TI,as of today I noticed that BQ24726 is not listed (any more) by ti.com search function - only an EVM module for it shown with status PREVIEW. Strange?!Has BQ24726 been phased out in the last...
View ArticleForum Post: RE: TPS2543 or TPS2546 parallel
10x USB port, what's the end-produt/application?Maybe you can refer to TPS2546 PPM function (/STATUS- load detection), 10x USB port default mode is CDP (1111), once one port plug in device, /STATUS...
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Forum Post: RE: test for application note pmp2890
Also the peaks being measured on these signals is likely noise from the RC ramp. The peaks line up with the falling edge of the RC waveform.Yes, the peakscoincide withthe slope of the sawtooth signal....
View ArticleForum Post: RE: waking BQ20Z65 up from shutdown
Tim,I am still befuddled by your question. The condition for exit from shut down mode is that the pack voltage has to be greater than its minimum operating voltage. The IC Pack pin is only connected to...
View ArticleForum Post: RE: VUSBIN.CAPOUT of TPS65951
Hi Guys,I have solved this problem. A switch should be added between CPOUT and VBUS and it should be controlled by a GPIO pin. Software needs to toggle this pin to turn on/off the switch. By default,...
View ArticleForum Post: Shutdown mode for bq20Z95
Hi all, I am having difficulty with putting my 2S battery pack into shutdown mode before shipping. I have tried the following steps according to technical instruction SLUU264A but still cannot make it...
View ArticleForum Post: RE: BQ28Z560-R1 and External Thermistor Power-on
FYI: I programmed my EVM which had a Version 0.04 with a version 0.05 and my board communicates fine without the need of removing the thermistor. Let me know the results of programming a board with...
View ArticleForum Post: RE: BQ24726 already phased out?
Hello Wang,but the fact that the datasheet is no longer available on ti.com could tell me that the part is no longer really "active" even if I can still buy it. Right?What active part would be the best...
View ArticleForum Post: RE: LM3478MM boost has 6khz sawtooth output
Hi,Please provide us with a copy of your schematic and load current conditions when you see this behavior (unloaded or full-load)?. If you can post a couple of the scope waveforms (SW, Vout ripple)....
View ArticleForum Post: RE: bq34z100 FULLSLEEP Mode questions
John,I am sorry about the confusion. The previous response should read, "If the current is below the Deadband, then it should not get included in the coulomb count in any state."Please enter your...
View ArticleForum Post: RE: TPS77633DR θJC data.
Hi Hugo,We do not currently have this data. It will take about a week for us to take the data and post it here for you.Very Respectfully,Ryan
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