Part Number: LM5025B Hi support team
LM5025 can support both applications to use P channel and N channel as active clamp switch.
In the datasheet and LM5025EVM, The application using P channel FET as active clamp switch only has been shown.
Do you…
Other Parts Discussed in Thread: LM5025B On behalf of a customer:
"I'm using the LM5025B PWM controller with Overlap and I'm trying to determine the worse case minimum Output A on time.
On page 12 of the data sheet the last equation in Maximum Duty…
Other Parts Discussed in Thread: LM5025 Hello,
Could you please provide Explanation on How the CS2 pin of the LM5025(A/B/C) works?
There is a difference in the data sheet between the A verion and the B version for example.
Could you please explain…
Part Number: LM5025B Dear！
I used LM5025B to design a forward circuit. The input voltage is 16-40V, and the output is 5V@16A. When the input is 16V, the output can only be loaded with 7A load. If it is larger, it will appear the phenomenon similar to…
Part Number: LM5025AEVAL Other Parts Discussed in Thread: LM5025B , , LM5025A , LM5025 Hi, I´m evaluating the LM5025B Eval Board (3.3V@30Aout) due to the need of sync in a wide band of frequency. The result I´m getting is that for big frequency changes…
Part Number: UCC2893 Other Parts Discussed in Thread: UCC2891 , UCC2892 , UCC2894 , UCC2897A , LM5025C , LM5025B , LM5025A , LM5026 Hi,
Any alternative suggestion to UCC2893 controller? Thanks
Vito
Hi,
Yes, increase UVLO off can help reduce the switch node voltage. This device maximum duty cycle increases when input voltage reduces, and this device maximum duty cycle can go as high as close to 90%. From the volt-seconds balance, Vds = Vin/(1-D…
Kensuke-san,
Since my colleague Oliver is already verifying the answer to your other posts about LM5025A & LM5025B using the LM5025C EVM, we will be able to answer this question also.
We will post the replies when we have the verified results. This…
Kensuke-san,
My interpretation of the datasheet is that the LM5025A will ramp down the HO/LO PWM duty cycle during soft-stop, and the SR1/2 duty cycle will ramp up during soft-stop. I assume that the dead-time between the gate drive signals will be…
