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Part Number: LM3481SEPICEVAL Other Parts Discussed in Thread: LM3481-Q1 , LMP8646 Hello everyone,
We are using the LM3481-Q1 in SEPIC topology in our designs.
Vin=7-24V Vout = 12V Iout=0.75A - set by Rsen to 0.063 OHM f=1Mhz
I want to ask about the Iout behavior…
Part Number: LM3481SEPICEVAL Other Parts Discussed in Thread: LM3481 , LM5155 , LM5156 Hi,
I am using the AN-2094 SEPIC evaluation as a reference , But i need different soft start requirement. I am attaching the output voltage soft start waveforms from page…
Part Number: LM3481SEPICEVAL Hi,
My customer try to evaluate the LM3481SEPICEVAL on Vout=12V.
According to the user's guide, Input voltage is restricted 18V on Vout=12V condition as below;
Why is input voltage restricted to 18V?
I think that input…
Part Number: LM3481SEPICEVAL
Hello,
We have a copy of the LM3481SEPICEVAL board and noticed a few discrepancies between the component values in the user guide and what is actually populated on the board.
Inductor:
Schematic: Cooper
BOM: Cooper
Board…
Hi Jass,
The SEPIC topology is not specifically listed in the control scheme, but I would assume a CMC Flyback would be the most accurate replacement. (I will need to check this with a compensation expert) For alternative calculation guides, we have an…
Part Number: LM3481SEPICEVAL Howdy,
Is there any reason you could think of where putting a Cff would cause problems on this EVM? I have an engineer trying to improve the transient response of the EVM by adding a Cff and, in their own words, it is causing…
Part Number: LM3481 Hi
1.
Is it possible to satisfy following requirement using LM34381 SEPIC operation?
Input:3V-4.2V
Output:3V-8.5V
Output current:1.3A
2.
Is it possible to modify LM3481SEPICEVAL to satisfy our requirement?
BestRegards
Part Number: LM3481 Other Parts Discussed in Thread: ALLIGATOR Hello,
I have the LM3481SEPICEVAL board and I was doing some measurements and have a few questions/concerns.
1) The datasheet for the eval board has a graph on page 5 for "Efficiency at Vout…
Other Parts Discussed in Thread: LM3481 , PMP8937 , LM3481SEPICEVAL Dear Sir
I would like to use LM3481 to do 12Vout/1A
May I know PMP8937 this reference design can do 12Vout +/- 0.5V (Vout regulation)
Thanks
Other Parts Discussed in Thread: LM3481SEPICEVAL I bought an evaluation board "SV600184-001 LM3481SEPICEVAL/NOPB", and I did tests with the cispr22 and the result was bad, 80MHZ, I did a PCB with the same mode and did the same problem with EMI, what can…
