TPS25947: TPS259470ARPWR

Hi Ali,

You have selected TPS259472 variant which has fixed OVC. TPS259470 has configurable OVLO. Please select TPS259470 variant from drop down and then enter your requirements and share again.

Regards

Kunal Goel

Hi Kunal Goel

I selected the TPS259470A version but not 72 version. I don't know where you are looking at.
In my sheet, it is xxxxx70A

See the attached sheet.
3007.TPS25947xx_Design_Calculator.xlsm

Hi kunal Goel

Can you help me to understand this equation?

I couldn't get the desired UVLO set point by solving this equation. Maybe i am dumb

Hi Ali,

Actually you are taking UVP threshold of 2.53 in formula(2.53 is VIN pin threshold for device to turn off.) You will have to use UVLO pin threshold which is 1.1 falling and 1.2 rising. Please refer datasheet application section to learn using equation based on your requirement.

Regards

Kunal Goel

Thanks kunal Goel
I think we are good now.
Thanks a lot for all your help.

Hi kunal Goel
The whole time of research and circuit designing has been wasted because this IC is out of stock and not available anywhere.
Any other recommendations?

Hi Ali,

You can check TPS259472 and TPS259474. 

TPS259472 has overvoltage clamp and current limit.

TPS259474 has OVLO and circuit breaker.

Regards

Kunal Goel

Hi kunal Goel
I found only 8 in stock TPS259472ARPW which isn't enough. I need 1k pcs.
Let's say, i use TPS259472ARPW then how much it differ from the TPS259470ARPW version and what modification, i have to do in the circuit to make it work

Hi Ali,

Reach out to this link for stock related query https://ticsc.service-now.com/csm. This forum is only for technical query resolving purpose.

You can refer EVM schematic to understand difference www.ti.com/.../slvuc01.pdf. Please refer datasheet also.

You will need to change pin 2, pin 3 and pin 4.

You can leave pin2 open to get 5.7V clamp setting. 

Regards

Kunal Goel