Forum Post: RE: TPS73125 LDO
Oh, I completely overlooked this figure in the datasheet. Thanks!Pere
View ArticleForum Post: bq34z100 Quiescent Current
Hi,could you please tell me what should be expected as "Quiescent Current" of the bq34z100 gauge meter when it is disabled by connecting the CE pin to VSS (I can not find this information in the...
View ArticleForum Post: RE: bq34z100 VEN input high level threshold
Tom-san, Is the VEN pin current detection input?I think VEN pin detects voltage level. Is my idea wrong?Or is 75uA necessary for VEN voltage rising up to voltage threshold?
View ArticleForum Post: RE: UCC28051 output current drift
Hi Mike.Thank you for returns.I check for customer that the reply got from Mike.If let me consult for my customer 's relation between comp drift and ref-voltage.Regards from Ben
View ArticleForum Post: Why i can't use the PTN78020 library that is exported by Ultra...
Hello everyone, i'm having a trouble please help me to solve it. I've just bought the PTN78020 (http://www.ti.com/product/ptn78020w) to make the power module. And like many products, T.I's supported...
View ArticleForum Post: RE: Dc-Dc
I am going to change my recommendation to the TPS43060 because it uses a higher voltage gate drive. This allows use of a bigger FET with lower RDson to further reduce power loss. The key for high power...
View ArticleForum Post: 10 Amps @ 90 Vdc with the TL783
I am working on a DC motor control and I would like to know if the TL783 can be used. I need 90 Vdc at 10 amps maximum current. I see in the data sheet (Fig. 19 & 20) that the TL783 can be used as...
View ArticleForum Post: RE: BQ34Z100 VEN ON with REG 30mA Current . Why increase Current...
Dear Tom Thank you very much about this Resistance and Current Value.But we need more some information about this Answer.Question 1) This VEN Port internal easy Block and Structure. * What type input...
View ArticleForum Post: RE: test for application note pmp2890
Thank you for sharing the details at each pin. Please see my comments below. For these three pins it would be better to see an oscilloscope screenshot instead of a DC measurement. This can give us an...
View ArticleForum Post: RE: MC33063AQDRQ1 VIpk Current-limit sense voltage
Hello Mahmoud-san,Thank you for your answer.Regards.
View ArticleForum Post: RE: TPS23750 NOISE PROBLEMS
Looks like the customer found the following:There was an error in the TI +5V “TPS23750” reference design found in the ‘SLVU137B’ evaluation board user’s guide. In short, the part number for component...
View ArticleForum Post: RE: Power for Ultrasound
What are your input voltage, 13-20Voutput voltage and 3-50V 1A and 20-100V 200mAoutput current requirements? Power limiting at output, means at lesser voltage more current available.What are your...
View ArticleForum Post: RE: [TPS7A4001] About output capacitor capacity and the relation...
Dear Kartik-sanWhen not having carried out correspondence of high-speed discharge in peripheral circuitry, how many seconds is discharge time?I think that it takes 2～3seconds at 4.7μF.Please let me...
View ArticleForum Post: RE: Choosing Bootstrap Capacitor and Diode
Hi,I have a new problem...I need advice on choosing power diode for my boost converter.During the regenerative braking, the current will feed back to the battery. How large a power diode rating should...
View ArticleForum Post: RE: LM3150 DCDC 12Vin - 3.3Vout 8A, oscillation in SW pin
Hi Daniel,A quick look at your layout. It looks pretty good. So I think we can rule out ground loop and layout as primary causes. That leaves us with a very fast turn on of the FET.Let's try two...
View ArticleForum Post: bq34z100 FULLSLEEP Mode questions
HiI am planning on using the bq34z100 as a coulomb counter for a 100 Amp Hr primary battery. The load on the battery has a very large dynamic range, (50uAmps to 5 Amps). The load spends 99% of the...
View ArticleForum Post: RE: TPS84A20 at 6v?
Voltage was measured at the red VOUT test point on the board, and before the amp meter and load.I was looking at the first curve on P8, which shows the efficiency going up as the output voltage goes...
View ArticleForum Post: tlc 5971 typical app circuit
Hello;i am going to use tlc5971 in the design of a led screen. However i have some problems with the typical application circuits given in the datasheet. I intend to use the first application circuit...
View ArticleForum Post: RE: TPS84250 PCB design
The layout looks very good. It looks like you followed the layout recommendations exactly.
View ArticleForum Post: RE: TPS54291 Output Stability: Minimum output current
I got them using the equation proposed in the datasheet of the ic.Adding one capacitor ( 4700 uF 16V electrolytic) in Vout seems to be solving our issues...
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