Hi Poojitha,
I recommend using the quickstart calculator for this, https://www.ti.com/tool/download/LM25190-LM5190-DESIGN-CALC . Also, simulation may be helpful.
Regards,
Tim
Hi Mahboob,
Glad to hear that the above suggestion resolved your issue. I would request to close the thread by hitting "resolve" buttion.
Kindly note that in EVM those components are DNP. Please be advised to use the design calculator LM25190-LM5190…
Part Number: LM5190 Other Parts Discussed in Thread: LMR60440 , LM25190 , LMR51440 , LM63440-Q1 , LM61440 Tool/software: My Question was:
Is there an IC to design a constant current supply with the following parameters:
Input: 10-13VDC (50Watt max…
Hi henry
Can you please fill the excel tool according to your operating conditions and get back to us?
https://dr-download.ti.com/design-tools-simulation/calculation-tool/MD-StLt1sVYHn/B4/LM25190-LM5190-DESIGN-CALC_REVB4.zip
Regards
Arpita
Hi Aravind
1. yes he chosen inductor is well above the minimum inductance needed for slope comp.
LM25190-LM5190-DESIGN-CALC Calculation tool | TI.com You can calculate the exact value of min. inductance required for slop comp from this calculator…
Hi Leo Chen
Please provide complete background information - the operating conditions/CC/CV point etc
Also, LM25190-LM5190-DESIGN-CALC Calculation tool | TI.com please fill the calculator and get back to us for schematic review.
The sense resistor…
Yes, I can. Please send me the schematic together with completed Quick Start excel file. (Please download at https://www.ti.com/tool/download/LM25190-LM5190-DESIGN-CALC )
-EL
1. Must connect VCC (FPWM) with >2.2uF cap with ground (NOT POWERGOOD)
2. Do you see the heating of inductor only during no-load? What is the observation during full load?
3. What is the Vout observed at no-load?
I have seen few issues in schematic…
Hi Louise,
Thanks for pointing out this in Webench.I will check with Webench team.
I would recommend you stick to datasheet for design recommendations and follow them to have proper and reliable operation of the IC. In datasheet we have shown recommendations…
Hello Karthik Have you tried Quick Start calculator ? Please download the excel file at https://www.ti.com/tool/download/LM25190-LM5190-DESIGN-CALC and verify your design.
-EL
