Clik here to view.
Forum Post: TPS659113 Switching MOSFET issue
Hi,In 8148 design we have used TPS659113 PMIC as recommanded and we found that MOSFET Q1 (used for TPS_CORE_VDD) is geting heated up after few days of operation. We found this when we observed CORE VDD...
View ArticleForum Post: RE: The problem in TLC5940
Hello Maxwell, What is "VPRG" pin level of TLC5940 when XLAT goes high level for GS data writing? The "VPRG" must be set to low level for GS data writing and must be set to high level for DC data...
View ArticleForum Post: RE: LM5116 turns off
Hello Zeus,I have recently built a WEBENCH design for a customer with these input conditions: 7-80Vin, 5Vout, 6A Iout at 260kHz. I used the LM5116 demo board for it and it worked pretty well. Can you...
View ArticleForum Post: RE: Impedance Track cell balancing issue
Hi please answer the below:1. Where do I find out more info on what specific changes need to be made to the .encr file?2. Please answer if Qmax update is accurate under these exact conditions:...
View ArticleForum Post: RE: PTN04050A - Layout Guidelines
Hi Leonard:The application listed was released only to explain at that time,over (8) years ago, the solder ball design .1.The Reset pin ( voltage adjustment ) main requirement to place it between pin...
View ArticleForum Post: RE: Magnetically coupled Feedback
Hi Lisa I'm confused. This is a Space Qualified part and there's no Radiation data?? Thats strange.Let me know if there is any data so I can determine if the part is usable. I need at least 100K Rad...
View ArticleForum Post: RE: DRV102 Dev board
That is correct, Calum, no EVM/DevKit for this device. You could use a generic breadboard; what is it to be interfaced with (control and drive side).-Leonard
View ArticleForum Post: RE: Flyback PSR, CV/CC with PFC?
The reason I need 2 stages is because I want to do parallel FET dimming for groups of leds. with all leds connected in series.I have a 4th winding to generate 5V for a MCU which drives the FETs for...
View ArticleForum Post: LI-ion USB charger that detects USB current capabilities?
I want to build a device that can be charged by any USB jack. The difficulty I'm having is in finding a single chip that will handle the variety of USB ports and wall wart power supplies out there:...
View ArticleForum Post: RE: TPS75005 Adjustable
Hello David san, Thank you for the reply.I understood that TPS75005 ADJ is preview device at this time. Could you please kindly let me know the release schedule if you can ? Best Regards,Ryuji Asaka
View ArticleForum Post: TLC7733 RESIN input level
Hi allThere is a question about TLC7733. Although it is about a RESIN terminal, when it is used in the state of VDD=3.3V and RESIN=4.1V (irregularly only for several msec), doesn't a problem occur in a...
View ArticleForum Post: RE: BQ24160 ESD Spec
Can I also have the ESD report in PDF file for my customer? Thanks!
View ArticleForum Post: RE: LMR62421 - Layout guidelines for WSON (NGG) package
Hi Dave,Do you have a preliminary board layout, max board size (or size for the application), layer stack up and thicknesses? Our team will review your inputs and test conditions and will make a...
View ArticleForum Post: RE: TPS40210 Current Output Too Low / Early Overcurrent Shutdown
Hi Anthony,I had a batch of new circuit boards made up following the reference design exactly, with the exception of the switching FET. Again, I used my model instead of the one in the reference design...
View ArticleForum Post: RE: Difference between UCC3854A and UCC3818A
Hi MIke,It looks you didn't attach the doc.Could you kindly share the difference list between UC3854 and UCC3817. Very thanks.
View ArticleForum Post: RE: UCC28950 / waveform of SS pin
Mike,No, The test board is customer's board.Please ask if you need more information(check another waveform, etc).Regards,Yaita
View ArticleForum Post: RE: bq34z100 FC flag (learning)
Tom,I send you the files.Thank you(Please visit the site to view this file)(Please visit the site to view this file)
View ArticleForum Post: bq24160 battery discharge monitoring
Hi,Is there any way to detect a minimum battery voltage when is in discharge mode (no VIN or VUSB).Do I need a Gauge monitor for that?ThanksRS
View ArticleForum Post: RE: TPS79930DDC LDO minimum output current requirement....?
Hi,These days i am not feeling well. I have received the samples today. I am going to test the LDO and post the results.Regards,Malli
View Article