Part Number:UCC28780
Hello, I would like to simulate the UCC28780 using the Simplis model provided. When trying to run the model, I receive the following error: "Decryption failed: Unable to decrypt the data." I'm using the demo version of SIMPLIS. If there is an issue with the demo version of Simplis, are there plans to provide this model for a different simulation tool? Thanks in advance for your help!
Part Number:BQ35100
Hello Team,
I'm working with a customer that is looking for a fuel gauge for their 2S1P L92 (LiFeS2) battery pack (3.0V), and I wanted to understand if the BQ35100 is our best option for them to consider.
Upon reading the datasheet, it notes that the BQ35100 can support the following:
In my customers application, they are looking for a reliable state-of-charge for their 2S1P battery pack, and from the last bullet it appears as though they should be able to achieve that through the Coulomb counting algorithm.
Best Regards,
Javier Palomo
Part Number:TPS53355
I want to know the average value of VBST current . I want to add a resistance between VBST and LL. Can I use 0402 package ?
Part Number:LM2623EV
I have looked at two of the lm2623ev/nopb demo board. I hooked power to first board's inputs and turned on the supply. The power supply folded. My first thought was did blow it up? I ohmed the red lead (vin) to the black lead (gnd) zero ohms. I got a second board. Before powering it I put the ohm meter across the two pins. Zero ohms again. This is a new board just out of the bag. Can someone test a board there and tell what ti should ohm? The board should be simple, put power in on one side and get power out the other side.
Part Number:TPS62050
Dear Ti Expert,
We are working on a DC/DC converter circuit based on TPS62050DGS (refer to schematic below). The input to the converter is 4VDC , while the output is designed to deliver 1.8V@800mA. With a load connected to the converter output, which draws about 400mA at 1.8V, we noticed the ripple at output is >=150mA. We would like to reduce the output ripple voltage as much as possible, would you please help revise our schematic and offer us some suggestion? Thank you. Peter
Part Number:LMZ31503
Hi, I need MTBF data for this IC : LMZ31503RUQT but I am unable to find in this link : http://www.ti.com/quality/docs/estimator.tsp#resultstable
Part Number:LM25011
Our customer using case is Vin=34V, Vout=26V, Iout=0.6A, Fsw=500kHz.
When Vout start up at no load condition, Vin voltage becomes flat several period by inrush current(probably) and high duty operation is done because Vout rise up.
In this time, BST capacitor charge is not maintained and LM25011 cannot normal switching. So Vout doesn't rise up to setting voltage.
This is removed by setting longer soft start time.
And it is described on datasheet about decreasing FB resistor value to provide minimum 1mA load.
Is there possibility that LM25011 or external components are damaged when LM25011 continue operation with the condition that there is no enough charge on BST capacitor?
Do you have any idea about solution other than soft start time or min load current?
Is there soft start capacitor min value and max value?
Can LM25011 keep sufficient BST capacitor voltage for normal switching under any conditions if there is min 1mA load?
Best Regards,
Kohei Sasaki
Part Number:TPS61256
Hi,
I'm considering to delay the PWRGD signal from TPS54218 for about 1ms by employing an RC circuit.
Then the delayed PWRGD is connected to EN pin of TPS61256 to delay its start-up time.
My concern is that if the RC circuit makes slow rise time on EN pin of TPS61256 and cause any problem like failure.
Is there any requirements for EN pin rise time ? or does this circuit cause any other problem ?
Part Number:UCC28C44
Tool/software: WEBENCH® Design Tools
I would like to check an application about the UCC28C44, as attached schematic, I would like to check several component whether could replace or not
Rstartup1 & startup2, 10.2 Kohm into 10K.
Rsnub1 & 2, 1/8W or 16W or else?
Dsec1 & sec2, minimue for those two
Rsns 25mohm for 1/8W or 1/16W or else
Shawn(Please visit the site to view this file)
Part Number:UCD3138064
Hi TI experts,
Is there something wrong at the page 15 of UCD3138064 datasehet? what's the correct formula ,thanks.
Part Number:TPS74401
Tool/software: TI C/C++ Compiler
Dear Sirs, good afternoon!
We got the circuit TPS74401 with die (crystal) TPS742 indeed. Why is there die TPS742 with another partnumber from the circuit marking TPS74401?
Is this item rejected or it's within standard limits?
We are looking forward to your answer so much as soon as possible.
SIncerely,
Olesya
Part Number:UCD3138064
Hi TI experts,
I saw the suggested cap and resister value on layout guide, for cap value should I 100% follow the suggested value of cap? or i can place a little bigger cap value for better noise immunity?
Does the suggested value that was considered by all temperature? ex:-40~125 ℃
Part Number:LMR23630-Q1
Hi Team,
I have a question about LMR 23630-Q1.
Although it is equation (17) of a data sheet, I think that L is required.
I think the above equation is wrong. Is my recognition wrong?
If the data sheet is incorrect, please tell me the correct equation.
Best Regards,
Ishiwata
Part Number:TPS2660
In your SLVA833C application report (Simplifying EFT, Surge and Power-Fail Protection Circuits in PLC Systems), you design/test for EN61000-4-5 level 1 (+/-500V between lines).
Could you recommend a front-end circuit to achieve higher levels of the EN61000-4-5?
Part Number:TPS54200
Hello Sirs,
Is it possible to dimming control from a DAC ?
Like tps6116x inject voltage on FB pin ? But without R & C .filter .
Many thanks !
Part Number:LM74670-SQEVM
Hello,
We used LM74670EVM as attached configuration. We felt turn off time is slow then EVM seems broken.
[Question]
- Does this configuration have any issue?
- Is there any reason if turn off is slow?
(Please visit the site to view this file)
Best regards,
Toshihiro Watanabe
Part Number:TPS22960
Hi team,
The application power path is CR2032(3V battery) --> TPS22960(there is another button switch between CR2032 and TPS22960 ON pin) --> MCU
Due to the mechanical design, need a part max height< 0.7mm and no ball lead package. I didn't find any single channel part meet the requirement and just the TPS22960 meet the requirement. We connect Vin together, VOUT together, ON together and used as single channel.
It's with battery power system, total current should be very very small for longer life time.
In datasheet, ON pin cannot let floating, we will let ON pin with a pull down resister and connect to MCU GPIO.
We would like to know ON pin pull down resister can be 3Mohm for very small power dissipation?
Or do you have any recommend single channel part meet the requirement?
Thank you!
Part Number:LM5020
Hello,
In the application circuit in datasheet page 9, RC filter (R1 and C4) is connected to VCC pin.
Is this purpose to reduce noise or surge from switching of T1? Or just wanted to remove noise from power supply?
Please let us know what purpose to put R1.
Best regards,
Toshihiro Watanabe