Part Number: LM5149-LM25149DESIGN-CALC One customer requested that LM5149-LM25149DESIGN-CALC add notice or cell's limitation or alert if power loss are extremely increased.
When output current and other specs enter severe spec, power loss are extremely…
Hi Malakondareddy,
In order to expedite your request, please fill out the calculator tool and attach it everything in there should help you design your system.
https://www.ti.com/tool/LM5149-LM25149DESIGN-CALC
To answer your question about the input filter…
Hello,
I would make sure that your inductor value is adequately sized for output voltages >27V. if it is not, it can cause instability. You can check stability by slowly adjusting output voltage to prevent damage and ensure that the switch node is…
Hello Hung,
Please can you fill out spreadsheet calculator with your requirements so I can review schematic. Thanks.
LM5149-LM25149DESIGN-CALC Calculation tool | TI.com
David.
Part Number: LM5149-Q1 Other Parts Discussed in Thread: LM5149-LM25149DESIGN-CALC , LM5149 We are currently prototyping a power supply with an input of 48V and an output of 25V and 8A. Set constants using LM5149-LM25149DESIGN-CALC.
I am aiming for stable…
Hello Criag,
Could you please fill out the calculator spreadsheet, link below, will help expedite finding a solution for you. Thanks in advance.
https://www.ti.com/tool/download/LM5149-LM25149DESIGN-CALC
David
Hello Jimmy,
As I mentioned, will come down to thermal management. compare the drive strength of the LTC device to ours, this is what it will come down to in terms of losses etc. We have a very generous gate driver for minimal losses, if the LTC device…
Hello Anders,
Can you please provide me with the details of your spec, schematic and what the converter is doing at the time of failure. I suspect it is failing as you apply the input voltage, please confirm. It may be helpful to fill out a calculator…
Hello Rakesh,
It really will come down to practical implementation for generating the ramp signal, which is part of the control loop, we don't recommend an Rsense lower that around 1mR, recommend a little higher than this for margin, say 1.4, 1.5mR as…
Hi Simon,
Yes this is an issue with ti.com updating.
For now you can use LM5149 design calculator.
LM5149 is the same specs and LM5148, just ignore Active EMI filter of LM5149.
https://www.ti.com/tool/download/LM5149-LM25149DESIGN-CALC
-Orlando