Forum Post: RE: LM5117 on pulse time variation
HiIt looks like that it is the operation which happens at the boundary between DCM and CCM operation.Basicially LM5117 is buck controller which employs the emulated peak current mode control, which...
View ArticleForum Post: TPS65930: USB does not work.
Dears,The issue description as follow. TPS65930 can work except USB portion. Such as VDD1, VDD2, VIO, and non-USB LDO are OK. But LDO of USB is not output. CLK of USB doesn't output. 26MHz input...
View ArticleForum Post: RE: Regulator for TUSB2046BI-Q1
Hello Kartik-san,Thank you fore your quick answer.Regards.
View ArticleForum Post: RE: Symmetric 5v from symmetric 30v supply
Thanks but I dont like the packages the LM3102 comes in I have limited experience with SMT and I am at risk of messing it up, an SOIC or TO-220 package would be easier for me.The drawing is lovely but...
View ArticleForum Post: RE: A problem about BQ500211A Demo
Thank you for your help. Actually I have increased R22 to the maximum value as the datasheet table list. But it does not help. I have contacted the local TI office,but they can do nothing just tell me...
View ArticleForum Post: RE: Symmetric 5v from symmetric 30v supply
Depending on the component values, simulating the revised circuit using a circuit simulator Cout+ along with the other capacitor and 2 inductors create an LRC circuit that causes the positive output to...
View ArticleForum Post: RE: BQ29330 measuring individual series cell voltages
hi Werner,The data sheet explains it all. Vcellin is the measured voltage between cells 1 and 4. Vcellout is measured as the voltage difference between cell+ and cell-. K is then calculated.To...
View ArticleForum Post: RE: LM2621EVAL documentation
Hi Mike,I've attached the Gerber for LM2621 to be used exclusively as a layout guide.(Please visit the site to view this file)Thanks,Anston
View ArticleForum Post: RE: Solution to measure the power of AC voltage
Hello S,The solution depends entirely on how they designed their power supply. Depending on their design, they can opt for an analog measurement (gauges) or a digital one. For the digital solution, a...
View ArticleForum Post: RE: TPS2350 transient limits and handling
Kim,I don't think I read your post carefully enough the first time. I am still a bit confuse with your polarity. Is RTN -SOURCE = -110 V?The part's operation range is -0.3V < RTN-SOURCE < 100V,...
View ArticleForum Post: RE: Fullbridge converter build using LM5035B
HelloDonghwan,Have you considered the LM3045 and LM3046? They both offer full bridge control.Thanks,
View ArticleForum Post: RE: LM5112 GATE DRIVER
Hello Eli,Can you try to attach the figure again? I don't see it posted.Thanks,
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Forum Post: bq24610 low charge current (LODRV problem?)
Hello,I'm having more problems with my custom bq24610 board. The circuit is based on the example in the bq24610 datasheet, and has the following settings:ISET1 (Fast Charge): 100k/20k = 0.550V...
View ArticleForum Post: RE: UCC317 WAS AN ERROR ((APR24) SHOULD BE UCC3817
Hello Dave,I am not entirely clear on what you are asking. Are you rectifying the 3 phases into a single DC bus or are you using 3 devices and connecting a device to each leg?Thanks,
View ArticleForum Post: RE: BQ20Z75 Remaining Capacity, Remaining time to Empaty and...
Hi Tom,I am using panasonic Cell NCR18650B, So I updated my data flash from BQEASY page and used Chem ID 210. After that my remaining capacity shows only half and absolute state of charge is only 44%...
View ArticleForum Post: RE: UCC28070 sluc114
Hello Bert,You can change the values by unprotecting the sheet. The password is ucc28070.Tools->Protection->Unprotected SheetThanks,
View ArticleForum Post: RE: REG: UCC3895
Hello Venkata,You would have to supply a voltage for the EAP and the CS to simulate input values if you are following the example circuit in the data sheet. If the value on pin EAOUT is less than...
View ArticleForum Post: RE: LM3429 calculation form
Hello Kei,There probably is a spreadsheet with the calculations available somewhere. I usually just plug the calculations that are found in the design section of the data sheet into Excel when I need...
View ArticleForum Post: RE: TPS2543 - Can TPS2543 support iPad(2.4A)?
We would better to communicate using internally email for the list, so please send email to me.
View ArticleForum Post: POWER LAB REFERENCE DESIGN #PMP8757
I am looking for gerber files for the PMP8757 reference design. Are the available?Thanks for your help.Regards,John
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