Part Number: LM5145 Other Parts Discussed in Thread: , LM25145 , LM5146 Hi,
On the LM5145 product page both tools are listed. The Excel sheet looks similar, same input boxes. But when filling the sheets with the same requirements and values, I get large…
Part Number: LM5017-QUICKSTART-CALC Other Parts Discussed in Thread: LM5017 Is it possible some error in calculating Vout in the spreadsheet has gone undetected? Sometimes, the col for Vout will be wrong and in white so one cannot correct that.
An interesting…
Part Number: LM5143DESIGN-CALC Other Parts Discussed in Thread: LM5143-Q1 Hi, Team,
Please let me confirm about "Effiency/Power Loss Analyzer shown in IM5143-Q1 Quickstart Design Tool. In the section of "Effiency/Power Loss Analyzer" in the file,…
Hi J ayanthi,
Please use the LM5145 quickstart calculator to assist with component selection https://www.ti.com/tool/LM5145DESIGN-CALC .
Note the LM5145 EVM is 5V/20A/225kHz using 80V FETs. However, you can likely use 60V FETs here given Vin-max = 48V…
Hello,
You can use the LM25143-Q1 42V input version of the controller here. As it's a controller, the applicable application space is quite broad.
My recommendation is to use the quickstart calculator to assist with your design: https://www.ti.com…
Hi Darshan,
Qoss is the area under the Coss vs. Vds curve at a given voltage and is sometimes given by the FET vendor in the data sheet. Eoss is not typically provided for Si FETs (more for GaN), so you may want to ask the FET vendor. In any event, you…
Hi Tobias,
Thanks for using the e2e forum. The first two pictures you attached are not loading on my side (I think these should be the schematics), could you re-attach these pictures? The waveforms are displayed correctly, so I am able to see these.
We…
Hello,
I've numbered my answers to correspond with your questions:
1) That is OK for this device.
2) Webench models are based on simulation data correlated with bench measurements. Since there is real bench data included in the model, not all specific…
Hi Shelly,
You can use the LM(2)5143 quickstart calculator to assist with compensation design: https://www.ti.com/tool/LM5143DESIGN-CALC . Just ensure that the value for ceramic Cout is derated for voltage
Ccomp controls the compensator zero location…