Hi Brigitte,
I have been using LM5175QUICKSTART-CALC for the 18V/12A configuration and what do modify on the LVM5175EVMHP schematics and below are the results, if you could confirm those values
- Rsense=6.1mohms 1% 6W - Cin = 42uF 0V, Cout = 50uF…
Hi Sakthi,
Thanks for using the e2e forum. In general, the alternative parts suggested by webench can be used for the according application. However, I would always recommend to double check these parts with a look into the datasheet to see if all values…
Hi Max,
Thank you for your reply, here is what I have got so far:
- The Rs value seems too large as your current limit is too low and it might trigger during the normal operation, you can double check this using the quickstart calculator for this…
Hello sakthi,
Did you follow the recommendation of external components based on the quickstart calculator? See here: https://www.ti.com/tool/LM5175QUICKSTART-CALC or here https://www.ti.com/lit/zip/snvc208
LM5176 is almost a drop in replacement of…
Hello Jiandong,
Would you please fill in the quickstart calculator with the customer parameters for this check? https://www.ti.com/tool/LM5175QUICKSTART-CALC
Best regards, Brigitte
Hi Steven,
Sorry to hear about the issue. Could you try to reduce R4 from 20k to 10k and see if there is any improvement?
Please also refer to our design calculator to check against your design. It is available at the following link:
https://www…
Hello Yoonju,
1. You mention 24V or 35V input voltage. This means the converter should work in buck mode. Normally the inductor temperature should not increase heavily in this mode. Please check the input voltage, output voltage and switch nodes with…
Hello Todor,
You are right, this sounds as if it is too high. Let me try to find out where this high current is coming from. In reality it should not go such high. It will take several days before I get this corrected. Please use the quickstart tool…
Hello Josef,
The ferrite bead adds inductance to the gate line. As the gate line needs to charge the MOSFET capacitance, the inductance of the bead can cause trouble. You might use gate resistors instead.
I would recommend to use the quickstart calculator…
Hi Henry,
Thanks for reaching out with your questions and for using the LM5175 in your design.
To help improve the control loop response I suggest using the LM5175 quick-start calculator. this will allow you to see the phase margin and gain margin…
