Part Number: LM5146 Other Parts Discussed in Thread: , LM25145 , LM5145 , CSD18563Q5A Hi,
We need to use the LM5146 for our new design, and the parameter 36VDC input voltage, and output voltage is 28VDC and output current is 8A,
And now, we use the LM5146…
Hello Hung,
please can you fill out a calculator spreadsheet to help us understand your specifications/requirements.
Thanks.
https://www.ti.com/tool/LM5146DESIGN-CALC
David.
Hello Sandeep,
You can with careful design considerations and with thermal management. I encourage you to use the calculator, link below.
LM5146DESIGN-CALC Calculation tool | TI.com
Ultimately, it will come does to component selection. We would typically…
MJ,
Please fill out and attach a quickstart calculator.
https://www.ti.com/tool/LM5146DESIGN-CALC
Be sure to tie SYNCIN to VCC or GND to configure FPWM or Diode emulation.
Hope this helps,
-Orlando
Jeno,
Please use and attach quickstart calculators for both your designs so I can check them easier.
https://www.ti.com/tool/LM5146DESIGN-CALC
-Orlando
Part Number: LM5146DESIGN-CALC Other Parts Discussed in Thread: LM5146 Hi team,
my customer was seeing a spike in temperature of the device so we had recommended they change the Fsw.
they reduced it to 120kHz which helped. however, now they have a ripple…
Part Number: LM5146DESIGN-CALC Hi,
I have the following doubt:
Scenario: Let us say, I need to design input filter (pi-filter) for a buck converter. The input switch side RMS current is 3A.
Now, let us say, after designing filter, I got a filter capacitor…
Daniel,
your small-signal layout is not that great, specifically regarding FB placement and routing.
The lower FB resistor is ideally placed close to the FB and AGND pins, to minimize noise susceptibility.
The FB to COMP loop should also be minimized…
Pavan,
Please attach a quickstart calculator.
https://www.ti.com/tool/LM5146DESIGN-CALC
It is likely your compensation components are not optimized.
You need to optimize compensation components for your output capacitance as well, use the derated output…
Lumina,
Please input your MOSFET specs into the quickstart calculator. This will give an estimate of of power losses.
https://www.ti.com/tool/LM5146DESIGN-CALC
The MOSFETs are expected to heat up based on their power dissipation.
The high-side MOSFET…