Part Number: LM25143 Hi
My customer says that the LM25143 is not working. Can I get a review of schematic and quickstart design tool? If you let me know your email address, I will send it to you. Please review it.
Thanks
Part Number: LM25143-Q1 Hi team,
How to calculate or derive input impedance of a LM25143-Q1 circuit? It is used to design the input filter before the power supply.
In the below app note: The Middlebrook’s extra element theorem (paper [2]), explains that…
Part Number: LM25143 Hi
My customer is reviewing LM25143 as a replacement for MAX1858(MAXIM). In MAX1858, there is a phenomenon that the frequency skips when sync off.
Is there a phenomenon that LM25143 is also skipped?
Thanks
Part Number: LM25143-Q1 Other Parts Discussed in Thread: LM25143 Hi team,
Is it possible to operate LM25143 with 3 phase and have one of the secondary IC’s output separated?
We want independent control to have 2 output with same voltage level Is…
Part Number: LM25143-Q1 Hi,
The customer wants to use LM25143-Q1.
Spec 1 : Dual Output
Input Voltage : 21~27V
1Ch Output Voltage : 12.5V
1Ch Output Current : Max 30A ( Typ 25~27A )
2Ch Output Voltage : 12.5V
2Ch Output Current : Max 30A ( Typ 25~27A …
Part Number: LM25143 Input voltage is 16-32V, typical 24V; Output voltage is 12V, Iccmax 40A; Use single external two-phase output; Please help to review LM25143 Schematic.pdf
Hello Ronan,
Suggest using the LM25143 for a single output interleaved buck converter. Link below.
LM25143 data sheet, product information and support | TI.com
Hope this helps.
David.
Hi Darshan,
There is no real limitation on the max output current in terms of the controller. It really depends on the selected components for the power stage - MOSFETs, inductors and caps.
If your current is 50A, you may want to consider a 2-phase…
Other Parts Discussed in Thread: LM25148 , LM25143 , TPSM8D6C24 , TPS40400 Hello,
My customer is looking for a replacement from TI for the ISL68201IRZ.
Could you please recommend the most suitable replacement among TI's controller products?
Thank you…
Yes, that's correct. Voltage-mode control is not really suitable for 2-phase operation, as the inductor current is not directly controlled. This is unlike current-mode control where the COMP voltage (voltage-loop error amplifier output) sets the current…