Hello Kuramochi-san,
for a 24W flyback beside the spreadsheet some more considerations should be analyzed; 24W power range allows DCM operation, CCM operation or both of them, so transition mode (CCM at low input voltage and full power, DCM at high…
Part Number: PMP40555 Hello
i would like to use the reference design PMP40555 for development purposes, because it fits my needs relativly well. However, it is not clear, what kind of transformer is needed. There are no windung numbers, leakage inductance…
Hello Antonio,
the xfmr is custom made by Wuerth, part number is 750.344.488. for further info you need to contact magnetics vendor.
Please contact WE, Emil Nierges, +49 89 24 29 36 210
Best regards, Bernd
Hi Ethan,
Thanks for using E2E!
You could refer to a reference design with LM5155. It provides design with 60V input while LM5155 is rated for 45v Vin. You could use similar circit on Bias Pin configuration for your 100v system. https://www.ti.com…
Part Number: TPS40210 Other Parts Discussed in Thread: LM5155 , PMP40555 Dear Sir
We plan to desing TPS40210 (Vin =12 to 57V ,Vout =12v )
but we can not find the referecnce desing -PMP4650 on TI web
Could you please provide the correcnt path for…
Hello Eric,
The PMP40555 is almost closed to my specifications. The maximum input voltage of the PMP40555 is 60 volts. I need a maximum input voltage of 71 volts. 50x 1.414 = 71V. Do you know any driver that contains a higher input voltage range?…
Hi JH,
Thanks for using the e2e forum. For these specs, they can consider LM5155 (or LM5156) in isolated flyback topology. A reference design for this can be found here: https://www.ti.com/tool/PMP40555
This design is for 24W output power, but it…
Hi Maynard，
Although I‘m not familiar in this field, I'd like to discuss with you about this question.I think Rcs and Ccs is needed here. Your customer may refer to PMP40555 and PMP40569 for a flyback solution.
Thanks.
BR,
Victor
Part Number: UCC28C53 Hi,
I'm working on my first flyback converter design using UCC28C53 with coupled inductor and would appreciate if someone could review my calculations and component selections. This is my first DC/DC power supply project, so I…
Hi Tyler,
Thank you for reaching out and considering TI solutions. You may consider the LM5157 or the LM5156 in a flyback configuration. The LM5157 has integrated MOSFET supporting a peak current of at least 6.5A, and the LM5155/56 employs external…
