Forum Post: Detecting device being charged has been unplugged using TPS2511
I have the TPS2511 set up for 10W mode and I'd like to be able to detect when the device being powered or charged has been disconnected. I have found a workable solution already: namely, I use a micro...
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Forum Post: TPS54340 Floating enable pin drops to ~0.5V
Hi,I have a few protoypes that use a TPS54340 to switch 12V down to 3.3V. On one of my boards, I have run into an issue where after about an hour or so of run time, the enable pin on the regulator...
View ArticleForum Post: RE: UCC28019 and UCC28019A
I'm sorry but I am not fluent in the digital-esque language that question is posted in. Someone from that product line has to address that particular question.
View ArticleForum Post: RE: Broken Mathcad link - "Nation Input Filter Design for...
Here are the mathcad files that we found.(Please visit the site to view this file) (Please visit the site to view this file) In the files tab in the simple switcher section you can also find an excel...
View ArticleForum Post: TPS40200 Locks up on start up
We've build 3 copies of a SMPS to output 28 VDC up to 1 Amp. The PS has 2 possible DC sources 36V or 45V that are switched between depending on conditions. It is based on the design from SwitcherPro...
View ArticleForum Post: RE: TPS2501 Rilim resistor is not functioning and power up...
Hello John.I am writing to notify you that we have read your post and will work to get a more detailed response by COB next Tuesday 5/28. We need to comunicate with an offshore (international) design...
View ArticleForum Post: RE: bq500211AEVM additional capacito
Pin 35 is 1.8V core voltagePin 33 is 3.3V for Input & Output (IO)driver and a number of other things. If the IO comes up before the core voltage then there is the possibility of seeing unwanted...
View ArticleForum Post: RE: Receiver for Powermat and Qi
TI is a member of PMA organization and actively participates in all their meetings. The PMA is currently in the process of writing the first PMA specification and enabling certification of products...
View ArticleForum Post: TPS650250 Powering the AM335x - PWRONRSTn signal
I've followed the power sequencing design from the Powering the AM335x with the TPS650250 but have a question on the PWRFAIL/POWERONRSTn signal. In figure 2, the line is pulled high to 3.3V. In such a...
View ArticleForum Post: RE: LM5118 Thermal Pad
Next week , Eric. Today I am already out of office. Thanks for your help.
View ArticleForum Post: RE: Examples of sending data between bqTESLA devices
I wish each receiver had a unique serial number we could read.
View ArticleForum Post: RE: TPS40170 high side FET damaged
It turns out there were only a couple of units that failed from a run of 1000. We have bad communications back from our manufacturer who made it sound like we had a mass failure. Thanks for the input...
View ArticleForum Post: LM3982 - Vset varies with Vin
I'm debugging a new design, and have observed unexpected behavior with an LM3982 (adj version).Nominal design values are Vin = 4.2V, Vout = 3.2V (voltage divider to SET is 145k on top and 100k on...
View ArticleForum Post: Configuring the Bq34Z100
I am new to TI parts and have purchased a Bq34Z100 Evaluation module. I would like to use the Bq34Z100 in my current design which has two Lithium Iron Phosphate batteries connected in series. I...
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Forum Post: How to use C28X Digital Power Library for TMS320C28346？
Can TI give some guideline for C2834X series？how to modify ADCDRV and PWMDRV while using C2834X?
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Forum Post: Simple lipo charger
Hi there, I'm a newbie to electronics. I'm looking at getting a pcb made up which will require a charger for a 2000mAh lipo battery. I saw the bq24060/64 (shown below), but i'm not sure if it is...
View ArticleForum Post: RE: Spice and Tina averaging models
Hi Matt,The TPS40170 is synchronous and has no zero cross detect. The low side FET can then sink current allowing current in the inductor go negative. This will keep it operating in CCM at light loads....
View ArticleForum Post: RE: bq76PL536 reverse voltage protection
Seth,I will give you one more way out :) Take a look at the following Quick Guide for the hot swappable device. http://www.ti.com/lit/ug/sluu437b/sluu437b.pdfThanks,
View ArticleForum Post: RE: UCC28019 and UCC28019A
Hi Lisa, thanks a lot.how can I get it answered? is there a moderator or so that can help reach that team?Thank you,
View ArticleForum Post: RE: MC33063AQDRQ1 VIpk Current-limit sense voltage
Toshio-san,Theta JC(top) is 59C/W. However this number is only really useful if the plan is to attach a heatsink to the top of the device.If the goal is the calculate the junction temperature based on...
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