Part Number:TPS62080
How do I go about getting a TI power supply engineer to review power supply design using part # TPS62080 and comment whether the design will work properly or not?
Appreciate a quick response on this as we have designed, built and shipped our product to customer. And customer is claiming the design will not work. Please advise. I can be reached at 443 414 3607, cell #.
Thank you!
Part Number:LP55231
Is it possible to increase the output current by connecting three outputs in parallel? The IC is considered for the LCD backlight control which has three LEDs in parallel (60mA total)
Part Number:UCD3138
There must be another set of questions logged in somewhere. I wrote a long para on CCS, control BW etc.
I did not keep a copy of that write up.
Where can I retrace it?
robin
Part Number:BQ29410
What are the ESD ratings for this part? The reliability/qualification tab on the product page lists ESD - HBM and ESD - CDM with the note "see datasheet". The datasheet does not have these specifications.
Part Number:TPS23756
Hi TI,
Our customer was try to use the connection below to do AC/PSE seamlessly switch.
According to datasheet 8.2.2.17, the PSE should keep alive because of PPD enable and R-Zener for MPS requirement.
But when AC source removed, we see the PSE must wait for the Hotswap switch fully turn-on then output power.
Here are some question:
1. Why the Hotswap didn't turn-on before AC removed even through PPD pull to high?
2. Is this connection (as Fig.33) could achieve power source seamlessly switch?
(CH2: RTN-VSS)
Thank you very much.
C.T.
Part Number:TPS544B20
Hi, team.
Although it is described as "No GND plane under SW" in Fig. 46, the GND layer is arranged in EVM, is it necessary?
If necessary, do you need to remove GND of all layers?
Best Regards,
Part Number:TPS560430
Hi
I saw in datasheet the tON_MAX is 7.5us. under which condition will tON_MAX approach 7.5us.
Also the tON_MIN and tOFF_MIN spec are 2.1MHZ and 1.1MHZ device has the same spec ?
Part Number:TPS2662
Tool/software:TINA-TI or Spice Models
Hi team,
My customer wants to simulate TPS2662 but there is no TINA-TI model in tool folder.
Although I've tried to create macro model from PSPICE model it doesn't work.
Do you have any spice model to simulate TPS2662 on either TINA-TI or LT spice?
Best regards,
Shota Mago
Part Number:LM5067
Tool/software:TINA-TI or Spice Models
Hi team,
I'm an FAE supporting some industrial/medical companies in Japan.
My customer wants to simulate LM5067 but there is no spice model on TI.com.
Do you have any spice model of LM5067 or similar function part?
The customer will operate LM5067 as simple negative voltage e-fuse.
Incidentally, the customer also needs simple collateral of LM5067(Japanese is very helpful).
Because its datasheet has a bunch of pages.
Best regards,
Shota Mago
Part Number:TPS563201
Hi team,
Customer inquired gain margin stability issue for TPS563201.
He measured bode-plot of TPS536201 along application note description as following.
15 db was measured from the data.
How should we consider this gain margin for DCAP2 mode?
There is no description for gain margin in application report SLVA546.
Part Number:LM2776
Hi Team.
Thank you for your always support.
I have a question about LM2776 and LM27761.
I would like to know how much PFM frequency when unloaded.
Can I see the comparison table between load current and frequensy when PFM mode.
We are concerned about audible frequency noise.
Sincerely.
Kengo.
Part Number:TPS2411
Hi,
From the datasheet of TPS2411, the gate source current is only 300uA. So the Oring FET turning on speed is very slow, especially for multi FETs in high current application. The long switch-over time would cause output voltage drop at worst case condition when one PSU shut down.
Do we have a way to increase the gate turn on ability? or Do we have new generation products for high current application?
Thanks.
Oliver Ou
Part Number:TPS56637
Dear Sir/Ms.
My customer needs a dimensional drawing of the TPS56637RPAR. But there is no such information in the datasheet.
In addition, I also use google to find information, but I can't find the package size of VQFN-HR 10.
Can you give me the dimensional drawing of the TPS56637RPAR and the PCB footprint?
Best regards,
Kami Huang
Part Number:DCP022415D
Hi Sir
May we have isolate power like DCP022415D but we need Vout need 24V?(my customer use in digital I/O)
Bogey
Part Number:TPS2546
Hi,
There's a request to supply TPS2546/IN differently with 2 scenarios as below.
The question here is, what can be used to control the switch between these two power sources? Considering EN pin is enabled by default, how fast should TPS2546 become capable of supplying the current that the device needs? If the switch from LDO to BUCK is too slow to supply the current in time, what will be the concerns here?
We're originally considering to use STATUS pin to choose LDO or BUCK, I'm afraid it's too late. (P.S.: TPS2546 will be configure in CDP mode for this case.)
Thanks!
Antony
Part Number:BQ40Z50
Dear expert :
According to my test result, if change avg P last run value and send reset command, the
ＦＣＣ ｖａｌｕｅ ｗｉｌｌ ｂｅ ｃｈａｎｇｅｄ，ｍａｙ Ｉ ｋｎｏｗ ａｖｇ ｐ ｌａｓｔ ｒｕｎ ａｎｄ ＦＣＣ ｒｅｌａｔｉｏｎｓｈｉｐ ？
ｏｒ ｄｏ ｙｏｕ ｈａｖｅ ａｖｇ ｐ ｌａｓｔ ｒｕｎ／ ＦＣＣ ｆｏｒｍｕｌａ ？
Part Number:BQ25703A
Dear Support Team,
We are using BQ25703A battery charger in our design. We are facing issue that when we enable the charging from the register settings then after some time the charge register bit 03/02h (Charge current) changes to 0. Due to this the battery charging current goes to 0.
Attached is the schematic for the same. We are using the 3-cell li-ion battery in our design. Let us know your comments or tell us the software settings we need to do for our design.
Your immediate response of this would be highly appreciated.
Regards,
Khemraj
Part Number:BQ40Z50-R1
Hi,
We use BQ40Z50-R1 for the battery design.
My question:
During the mass production, we use .srec file to program the circuit board.
After charging -discharging test, if the customer wants to modify some parameters,
could we just import the GG file instead of reprogramming .srec file?
Part Number:TPS2660
Hello guys,
One of our cuatomers is considering using TPS26600 for their new products. They want to use TPS26600 to limit their power supply output(24V) current less than 2A. But in the future, their power supply output current would be increased up to 4A. They have a question about TPS26600 for the higher current product as the follows.
Q1. Can TPS26600 be connected in parallel to increase the current limit value up to 4A?
Q2. TPS26600 is very higher price compared 18V e-Fuse series. Do you have any product which is lower price than TPS26600 and can be used for 24V power line?
Your reply would be much appreciated.
Best regards,
Kazuya Nakai.
