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Part Number: LM5023-2NBEVM Other Parts Discussed in Thread: LM5023 , UCC28700 , UCC28C42 , UC2844 , UCC28704 Can I use Lm 5023 in a buck topology (Vin =300- 1500Vdc , Vout=300V dc, 200W output power)? If yes, how do I limit the lower frequency above 25KHz…
Hello Mike,
Thank you very much for your reply.
I connected the input voltage of the aux power supply from from the output of the PFC stage. The problem that I am facing is that at reduced load condition (34W) and input voltages of Vin>250Vdc, the switching…
Hi, Abhishek
Thank you for your interested in TI solutions.
The COMP waveform you provided is a little wired. Since the internal voltage source of COMP pin is only 5V, but the max value which shows is between 12.5V~7.5V. I think it should be VCC waveform…
Hello PieterT ,
The data sheet Section 8 and Section 9 page 18 to page 30 has extensive information and is the primary source of design and application information for the LM5023. Additionally the LM5023 has an Evaluation Module available with a User Guide…
CM
I recommend looking at LM5023. It is a QR flyback that has the ability to meet all the requirements, including OVP latch off. The EVM LM5023-2NBEVM is close to these specifications, so we recommend ordering a board to evaluate performance.
Best…
