Part Number: LM5155EVM-BST Other Parts Discussed in Thread: LM5155 Hello,
I would like to know the thickness of copper of the LM5155-EVM. I would like to know if there is 35µm or 70µm?
I saw in the LM5155 datasheet you mentionne the RJA is…
Thanks Stefan Schauer! I may find the solution, At the beginning, I test my own PCB BRD and get the value from following by the file from TI (LM5155_56_Quickstart_Calculator_for_Boost_Converter_Design_V1_1_1).
The MAX loading is 52V @ 1.4A, However, my target…
Hi,
Thanks for your reply. You can try with a phase margin in this Excel file at least 45deg above the point where the gain is crossing the 0dB axis. A good starting point could be the suggested values (4.5k and 41nF). For CHF, since it is not mandatory…
Hi Garrett,
I bought the LM5155EVM-BST, as soon as I receive it I will do all the necessary tests to verify its operation.
Thanks for the support, in case I have any questions, I contact you directly.
Regards.
Davide Facchini
Thanks for your answer,
LM5155EVM-BST is on the way, but I have some analysis to do before it's here.
About the FET's parasitics. Does the WEBENCH evaluates all the dynamic characteristics from FET's datasheet (capacitances, charges and etc.)? Or…
Hi Chanoh,
Thanks for reaching out with your questions and for considering the LM3481 and LM3478.
I am curious at why you think the LM3478 would not work of the application? At light load the LM3481 and the LM3478 are both going to have pulse skipping…
Part Number: LM5155 Other Parts Discussed in Thread: , LM5122 , TPS40210 Tool/software: WEBENCH® Design Tools Hi,
I plan to use the lm5155 for one of our product that needs to meet the following requirements:
-Vin: 20-32VDC
-Vout: 110VDC @ 3.2A
When using…
Hello,
If the inductors are getting hot then those are the devices that need to be changed. Taking a second look at the datasheets it looks like the temperature rise is only specified for the DC current and not for the RMS current. This might be a sign…
Hello,
Thank you for considering the LM3481 in your design.
I think given your power requirements, you can use the LM3481
Yes, there are some designs that can be used to output 24V @ 2A from your input ranges. I would recommend taking a look at PMP8536…
Hello Ken,
Please provide the TI part numbers for the devices being used.
Did you look at the waveforms before applying load?
When turning on switching supply prototypes, the waveforms will tell a lot about how it is functioning.
Regarding the LM5155…